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Fencer Vulns
high 7.5

CVE-2022-27536 json

Panic during certificate parsing on Darwin in crypto/x509

published 2022-04-20 4 y ago modified 2026-10-16 24 d ago also BIT-golang-2022-27536 , EUVD-2022-32037 , GO-2022-0434

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

Certificate.Verify in crypto/x509 in Go 1.18.x before 1.18.1 can be caused to panic on macOS when presented with certain malformed certificates. This allows a remote TLS server to cause a TLS client to panic.

Patch / fix

  • bitnami golang 1.18.1
  • go stdlib 1.18.1
  • golang go 1.18.1
  • go1.18-openssl SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Real Time 15 SP3 +6 more 1.18.10.1-150000.1.9.1
  • go1.18 SLE Module for Development Tools 15 SP3, openSUSE Leap 15.4, openSUSE Leap 15.3 1.18.1-150000.1.11.1

suse advisories SUSE-SU-2023:2312-1SUSE-SU-2022:1410-1

  • go1.18 openSUSE Tumbleweed 1.18.1-1.1

opensuse advisories openSUSE-SU-2024:11991-1

  • go Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 1.18.1-r0

alpine advisories ALPINE-CVE-2022-27536

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

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

cisa ICSA-23-047-04 updated cvss 7.5

Siemens Brownfield Connectivity Gateway

  • Siemens Brownfield Connectivity - Gateway <V1.10, V1.10.1
    affected: fixed in V1.11

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

1.47% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
OSV 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
bitnami golang
>=1.18.0, <1.18.1
1.18.1
go stdlib
>=1.18.0-0, <1.18.1
1.18.1

Classification

Weakness
  • CWE-295 Improper Certificate Validation

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.