CVE-2026-57062

CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.

Published: 2026-06-23 Last update: 2026-06-25 Assigner: [email protected] Source: [email protected]
NVD Status：Awaiting Analysis，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-57062 is rated Low Risk (12.1/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.11%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-57062

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-24 — 0.11% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-57062

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.9 3.1 LOW
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.4 1.4 [email protected]

Weakness enumeration for CVE-2026-57062

GitHub Security Advisory for CVE-2026-57062

GHSA-m6x2-4hhh-669j · Severity: low — CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS...

OS Trackers for CVE-2026-57062

vendor priority summary link
debian not yet assigned CVE-2026-57062 not yet assigned priority: Debian including 1 source packages (gnupg2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. https://security-tracker.debian.org/tracker/CVE-2026-57062
redhat low — https://access.redhat.com/security/cve/CVE-2026-57062
suse low CVE-2026-57062 severity low: SUSE including 3 source package names (dirmngr, gpg2, gpg2-lang), 31 product×package rows across 15 product lines (SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS, … (15 product lines)): Known Not Affected 31. https://www.suse.com/security/cve/CVE-2026-57062/
ubuntu low CVE-2026-57062 low priority: Ubuntu including 1 source packages (gnupg2), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, resolute, upstream, xenial): needs-triage 7, released 1. https://ubuntu.com/security/CVE-2026-57062

Affected software / configurations for CVE-2026-57062

Vendor Product Version Raw CPE
gnupg gnupg <= 2.5.20 cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*

References for CVE-2026-57062

cvelogic Threat Intelligence