CVE-2026-24881

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Source

https://cve.org/CVERecord?id=CVE-2026-24881

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24881.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-24881

Published

2026-01-27T19:16:16.517Z

Modified

2026-03-13T04:10:30.468938Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that could lead to remote code execution.

References

Affected packages

Git / git.gnupg.org/gpg4win.git

Affected ranges

Type

GIT

Repo

git://git.gnupg.org/gpg4win.git

Events

Introduced

494fe73653aba708306345c11c1350ad259541e3

Fixed

83608d53f6e58de1c593b49d168ac30aa53a4cd6

Database specific

{
    "versions": [
        {
            "introduced": "5.0.0"
        },
        {
            "fixed": "5.0.1"
        }
    ]
}

Affected versions

gpg4win-5.*

gpg4win-5.0.0

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "2.5.13"
            },
            {
                "fixed": "2.5.17"
            }
        ]
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24881.json"