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Fencer Vulns
high 7.5

CVE-2025-47913 json

Potential denial of service in golang.org/x/crypto/ssh/agent

published 2025-11-13 11 mo ago modified 2026-10-18 21 d ago also EUVD-2025-177185 , GHSA-56w8-48fp-6mgv , GO-2025-4116

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.

Patch / fix

  • go golang.org/x/crypto/ssh/agent 0.43.0
  • go golang.org/x/crypto 0.43.0
  • golang.org/x/crypto golang.org/x/crypto/ssh/agent 0.43.0
  • golang-go.crypto Debian 14 1:0.43.0-1

debian advisories DEBIAN-CVE-2025-47913

  • golang-go.crypto Ubuntu 25.10 1:0.25.0-1ubuntu0.1
  • golang-go.crypto Ubuntu Pro 16.04 LTS 1:0.0~git20151201.0.7b85b09-2ubuntu0.1~esm3
  • golang-go.crypto Ubuntu Pro 18.04 LTS 1:0.0~git20170629.0.5ef0053-2ubuntu0.1~esm3
  • golang-go.crypto Ubuntu Pro 20.04 LTS 1:0.0~git20200221.2aa609c-1ubuntu0.1~esm3
  • golang-go.crypto Ubuntu Pro 22.04 LTS 1:0.0~git20211202.5770296-1ubuntu0.1~esm3
  • golang-go.crypto Ubuntu Pro 24.04 LTS 1:0.19.0-1ubuntu0.1~esm3

ubuntu advisories UBUNTU-CVE-2025-47913

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ceph ceph storage 7.1 2:18.2.1-381.el8cp
  • ceph ceph storage 7.1 2:18.2.1-381.el9cp
  • cephadm ceph storage 7.1 2:18.2.1-381.el9cp
  • librbd1 ceph storage 7.1 2:18.2.1-381.el8cp
  • librbd1 ceph storage 7.1 2:18.2.1-381.el9cp
  • librgw2 ceph storage 7.1 2:18.2.1-381.el8cp
  • librgw2 ceph storage 7.1 2:18.2.1-381.el9cp
  • rbd-nbd ceph storage 7.1 2:18.2.1-381.el8cp

red hat advisories RHSA-2026:19634RHSA-2026:16702RHSA-2026:16701RHSA-2026:16102RHSA-2026:14868RHSA-2026:12030

  • amazon-ssm-agent SLE Module for Public Cloud 12 3.3.5678.0-4.55.1
  • podman Linux Micro 6.1 5.4.2-slfo.1.1_6.1
  • terraform-provider-aws SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.11.0-150200.6.18.1
  • terraform-provider-tls SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.0.0-150200.5.15.1
  • terraform-provider-helm SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 2.9.0-150200.6.23.1
  • terraform-provider-null SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.0.0-150200.6.18.1
  • terraform-provider-local SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 2.0.0-150200.6.17.1
  • terraform-provider-google SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.43.0-150200.6.12.1

suse advisories SUSE-SU-2026:5067-1SUSE-SU-2026:24378-1SUSE-SU-2026:3056-1SUSE-SU-2026:22516-1SUSE-SU-2026:2733-1SUSE-SU-2026:2706-1

  • k3sup openSUSE Tumbleweed 0.13.14-1.1
  • kumactl openSUSE Tumbleweed 3.0.0-1.1
  • rz-pm openSUSE Tumbleweed 0.3.6-1.1
  • containerized-data-importer1.65 openSUSE Leap 16.0 1.65.0-160000.3.1
  • gitea-tea openSUSE Leap 16.0 0.15.1-bp160.1.1
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • podman openSUSE Leap 16.0 5.4.2-160000.5.1
  • amazon-ssm-agent openSUSE Leap 16.0 3.3.4624.0-160000.1.1

opensuse advisories openSUSE-SU-2026:12295-1openSUSE-SU-2026:12300-1openSUSE-SU-2026:11781-1openSUSE-SU-2026:21824-1openSUSE-SU-2026:21603-1openSUSE-SU-2026:21483-1

  • crit AlmaLinux 8 3.18-5.module_el8.10.0+4047+545787c4
  • crit AlmaLinux 8 3.18-5.module_el8.10.0+3901+4b80ecd7
  • crit AlmaLinux 8 3.18-5.module_el8.10.0+3845+87b84552
  • crit AlmaLinux 8 3.18-5.module_el8.10.0+3858+6ad51f9f
  • criu AlmaLinux 8 3.18-5.module_el8.10.0+4089+ce72bbbe
  • criu AlmaLinux 8 3.18-5.module_el8.10.0+3970+8445edf6
  • criu AlmaLinux 8 3.18-5.module_el8.10.0+3876+e55593a8
  • criu AlmaLinux 8 3.18-5.module_el8.10.0+3909+6e1c1eb7

almalinux advisories ALSA-2026:0753ALSA-2026:0545ALSA-2026:0436ALSA-2026:0437ALSA-2026:0470

  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1815+5fe7415e
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1896+b18fa106
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+2001+6a33db9f
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1825+623b0c20
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1843+6892ab28
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1880+8e896d1b
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+40047+0c0a73f4
  • criu Rocky Linux 8 3.18-5.module+el8.10.0+1948+4b5cd4a9

rocky linux advisories RLSA-2026:0753RLSA-2026:0545RLSA-2026:0470RLSA-2026:0436RLSA-2026:0437

  • buildah Azure Linux 3.0 1.43.1-1
  • moby-compose CBL-Mariner 2.0 2.17.3-12
  • packer CBL-Mariner 2.0 1.9.5-16
  • docker-buildx Azure Linux 3.0 0.14.0-8
  • docker-compose Azure Linux 3.0 2.27.0-6
  • kubevirt Azure Linux 3.0 1.5.3-2
  • packer Azure Linux 3.0 1.9.5-11
  • telegraf Azure Linux 3.0 1.31.0-11

azure linux advisories AZL-70313AZL-70322AZL-70325AZL-70328AZL-70331AZL-70334

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-47913 updated cvss 7.5

golang.org/x/crypto/ssh/agent: golang.org/x/crypto/ssh/agent: SSH client panic due to unexpected SSH_AGENT_SUCCESS

  • Red Hat Multicluster Engine for Kubernetes multicluster-engine/hive-rhel8, multicluster-engine/hive-rhel9, multicluster-engine/cluster-image-set-controller-rhel8, multicluster-engine/cluster-image-set-controller-rhel9 Red Hat OpenShift Developer Tools and Services openshift4/ose-jenkins, ocp-tools-4/jenkins-rhel8, ocp-tools-4/jenkins-rhel9, ocp-tools-4/jenkins-agent-base-rhel9 Red Hat OpenShift Pipelines openshift-pipelines-client Red Hat OpenShift Serverless openshift-serverless-clients, openshift-serverless-1/kn-plugin-func-func-util-rhel9
    affected: workaround, no fix available “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”
  • Red Hat Advanced Cluster Management for Kubernetes 2 flightctl, flightctl-agent, flightctl-selinux, rhacm2/acm-flightctl-api-rhel9, rhacm2/acm-flightctl-worker-rhel9, rhacm2/acm-flightctl-periodic-rhel9, +1 more
    affected: workaround, no fix available, no fix planned “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”
  • Red Hat Ansible Automation Platform 2 flightctl Red Hat Ceph Storage 6 grafana Red Hat Ceph Storage 8 grafana Red Hat Ceph Storage 9 grafana
    affected: workaround, no fix available “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”
  • Red Hat Edge Manager preview flightctl, rhem/flightctl-api-rhel9, rhem/flightctl-worker-rhel9, rhem/flightctl-db-setup-rhel9, rhem/flightctl-periodic-rhel9, rhacm2/acm-flightctl-api-rhel9, +7 more
    affected: workaround, no fix available, no fix planned “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”
  • Red Hat Enterprise Linux 8 buildah, buildah-tests
    affected: workaround, no fix available “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”
  • Red Hat Enterprise Linux AI (RHEL AI) golang
    affected: workaround, no fix planned “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”
  • Red Hat OpenShift Container Platform 4 podman, microshift, podman-tests, podman-docker, podman-remote, microshift-olm, +31 more Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/gitops-rhel8, openshift-gitops-1/gitops-rhel8-operator, openshift-gitops-1/gitops-operator-bundle Red Hat OpenShift Virtualization 4 kubevirt, container-native-virtualization/cluster-network-addons-operator, container-native-virtualization/ocp-virt-validation-checkup-rhel9, container-native-virtualization/passt-network-binding-plugin-cni-rhel9, container-native-virtualization/passt-network-binding-plugin-sidecar-rhel9
    affected: workaround, no fix available, no fix planned “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”
  • Red Hat OpenStack Platform 16.2 rhosp-rhel8-tech-preview/osp-director-provisioner
    affected: workaround, no fix planned “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”
show 23 more
  • Red Hat Builds for Red Hat OpenShift 1.6.0 openshift-builds 1.6.1-1764764462, openshift-builds 1.6.1-1764764593, openshift-builds 1.6.1-1764764623, openshift-builds 1.6.1-1764764750, openshift-builds 1.6.1-1764764897, openshift-builds 1.6.1-1764767096
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2025:22743
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.17 cert-manager/cert-manager-operator-rhel9 1791788287, cert-manager/jetstack-cert-manager-rhel9 1791371069, cert-manager/jetstack-cert-manager-acmesolver-rhel9 1791371080
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:82322
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.18 cert-manager/cert-manager-istio-csr-rhel9 1791459759
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:82354
  • Red Hat DevWorkspace Operator 0.39 devworkspace 1769461843, devworkspace 1769461957
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:2454
  • Red Hat OpenShift API for Data Protection 1.6 oadp/oadp-velero-rhel9 1784058822
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:43692
  • Red Hat Advanced Cluster Management for Kubernetes 2.15 rhacm2 1767718573
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:0527
  • Red Hat Ceph Storage 7.1 rhceph/grafana-rhel9 1781855851
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:33154
  • Red Hat Ceph Storage 7.1 Tools ceph 18.2.1-381.el8cp, ceph 18.2.1-381.el9cp, cephadm 18.2.1-381.el9cp, librbd1 18.2.1-381.el8cp, librbd1 18.2.1-381.el9cp, librgw2 18.2.1-381.el8cp, +37 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:2769
  • Red Hat Ceph Storage 8 rhceph 1770630607
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:2737
  • Red Hat Ceph Storage 9.0 rhceph/grafana-rhel10 1781018768
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:26411
  • Red Hat Container Native Virtualization 4.14 container-native-virtualization 1777476433
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:13431
  • Red Hat Container Native Virtualization 4.16 container-native-virtualization 1778861265
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:20880
  • Red Hat Container Native Virtualization 4.19 container-native-virtualization 1777605305
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:13450
  • Red Hat Container Native Virtualization 4.20 container-native-virtualization 1777867243, container-native-virtualization/cluster-network-addons-operator-rhel9 1786128804
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:53770
  • Red Hat Enterprise Linux AppStream (v. 8) crit 3.18-5.module+el8.10.0+23863+d7fda2d7, criu 3.18-5.module+el8.10.0+23863+d7fda2d7, runc 1.2.9-2.module+el8.10.0+23863+d7fda2d7, crun 1.14.3-2.module+el8.10.0+23863+d7fda2d7, udica 0.2.6-21.module+el8.10.0+23863+d7fda2d7, conmon 2.1.10-1.module+el8.10.0+23863+d7fda2d7, +27 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:0753
  • Red Hat Enterprise Linux AppStream (v. 9) podman 5.6.0-11.el9_7, buildah 1.41.8-1.el9_7, podman-tests 5.6.0-11.el9_7, buildah-tests 1.41.8-1.el9_7, podman-docker 5.6.0-11.el9_7, podman-remote 5.6.0-11.el9_7, +1 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:0437
  • Red Hat Enterprise Linux AppStream (v. 10) podman 5.6.0-11.el10_1, buildah 1.41.8-1.el10_1, buildah-tests 1.41.8-1.el10_1, podman-docker 5.6.0-11.el10_1, podman-remote 5.6.0-11.el10_1
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:0436
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) crit 3.15-3.module+el8.6.0+24209+25a14987, criu 3.15-3.module+el8.6.0+24209+25a14987, crun 1.14.3-1.module+el8.6.0+24209+25a14987, udica 0.2.6-5.module+el8.6.0+24209+25a14987, conmon 2.1.4-1.module+el8.6.0+24209+25a14987, runc 1.2.9-1.module+el8.6.0+24209+25a14987.1, +29 more Red Hat Enterprise Linux AppStream E4S (v.8.6) crit 3.15-3.module+el8.6.0+24209+25a14987, criu 3.15-3.module+el8.6.0+24209+25a14987, crun 1.14.3-1.module+el8.6.0+24209+25a14987, udica 0.2.6-5.module+el8.6.0+24209+25a14987, conmon 2.1.4-1.module+el8.6.0+24209+25a14987, runc 1.2.9-1.module+el8.6.0+24209+25a14987.1, +29 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:10703
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) crit 3.15-4.module+el8.8.0+23884+2031fc78, criu 3.15-4.module+el8.8.0+23884+2031fc78, runc 1.2.9-1.module+el8.8.0+23884+2031fc78, crun 1.14.3-1.module+el8.8.0+23884+2031fc78, conmon 2.1.6-1.module+el8.8.0+23884+2031fc78, udica 0.2.6-20.module+el8.8.0+23884+2031fc78, +37 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:4693
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) podman 4.2.0-6.el9_0.6, buildah 1.26.11-1.el9_0, podman-tests 4.2.0-6.el9_0.6, buildah-tests 1.26.11-1.el9_0, podman-docker 4.2.0-6.el9_0.6, podman-remote 4.2.0-6.el9_0.6, +3 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:16102
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) podman 4.4.1-22.el9_2.9, buildah 1.29.5-1.el9_2.2, podman-tests 4.4.1-22.el9_2.9, buildah-tests 1.29.5-1.el9_2.2, podman-docker 4.4.1-22.el9_2.9, podman-remote 4.4.1-22.el9_2.9, +2 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:4532
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) podman 5.4.0-15.el10_0, buildah 1.39.8-1.el10_0, buildah-tests 1.39.8-1.el10_0, podman-docker 5.4.0-15.el10_0, podman-remote 5.4.0-15.el10_0
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:14868
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) podman 4.9.4-20.el9_4.1, buildah 1.33.13-3.el9_4.1, podman-tests 4.9.4-20.el9_4.1, podman-docker 4.9.4-20.el9_4.1, podman-remote 4.9.4-20.el9_4.1, buildah-tests 1.33.13-3.el9_4.1, +1 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.” RHSA-2026:12030

21 more fixed, 38 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
11 mo ago

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • go.dev https://go.dev/issue/75178 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go golang.org/x/crypto/ssh/agent
<0.43.0
0.43.0
go golang.org/x/crypto
<0.43.0
0.43.0

Affected products

  • golang.org/x/crypto golang.org/x/crypto/ssh/agent

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.