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Fencer Vulns
high 7.5

CVE-2022-46663 json

In GNU Less before 609, crafted data can result in "less -R" not filtering ANSI escape sequences sent to the terminal.

published 2023-02-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-49459

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

In GNU Less before 609, crafted data can result in "less -R" not filtering ANSI escape sequences sent to the terminal.

Patch / fix

  • gnu less 609
  • less Debian 14, Debian 13, Debian 12 590-1.2

debian advisories DEBIAN-CVE-2022-46663

  • less Ubuntu 22.04 LTS 590-1ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2022-46663

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

  • less RHEL 9 590-2.el9_2

red hat advisories RHSA-2023:3725

  • less SLE Module for Basesystem 15 SP4, SLE Micro 5.3, openSUSE Leap Micro 5.3 +1 more 590-150400.3.3.1

suse advisories SUSE-SU-2023:0348-1

  • less openSUSE Tumbleweed 608-2.1

opensuse advisories openSUSE-SU-2024:12671-1

  • less AlmaLinux 9 590-2.el9_2

almalinux advisories ALSA-2023:3725

  • less Rocky Linux 9 590-2.el9_2

rocky linux advisories RLSA-2023:3725

  • less CBL-Mariner 2.0 590-2

azure linux advisories AZL-13350

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-2022-46663 updated cvss 7.5

less: crafted data can result in "less -R" not filtering ANSI escape sequences sent to the terminal

  • Red Hat OpenShift Dev Spaces devspaces-theia-rhel8-container
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux BaseOS (v. 9) less 590-2.el9_2
    fixed: vendor fix RHSA-2023:3725
  • Red Hat OpenShift Service Mesh 2.1 servicemesh-grafana Red Hat Enterprise Linux 6 less Red Hat Enterprise Linux 7 less Red Hat Enterprise Linux 8 less Red Hat Fuse 7 less Red Hat JBoss Data Grid 7 less
    +5 more products
    Red Hat JBoss Enterprise Application Platform 7 less Red Hat JBoss Enterprise Application Platform Expansion Pack less Red Hat Openshift Container Storage 4 ocs4/mcg-core-rhel8 Red Hat Openshift Data Foundation 4 odf4/mcg-core-rhel9, noobaa-core-container Red Hat OpenShift distributed tracing 2 rhosdt/jaeger-agent-rhel8, rhosdt/jaeger-query-rhel8, rhosdt/jaeger-ingester-rhel8, rhosdt/jaeger-collector-rhel8, rhosdt/jaeger-all-in-one-rhel8, rhosdt/jaeger-es-rollover-rhel8, +1 more
    not affected: vulnerable code not present

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
19 mo ago

Exploit prediction

1.41% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

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
NVD 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

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.