VulnerabilityModified
CVE-2026-24882
In GnuPG before 2.5.17, a stack-based buffer overflow exists in tpm2daemon during handling of the PKDECRYPT command for TPM-backed RSA and ECC keys.
HIGH 7.8EPSS 0.41%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In GnuPG before 2.5.17, a stack-based buffer overflow exists in tpm2daemon during handling of the PKDECRYPT command for TPM-backed RSA and ECC keys.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.41% probability · 34th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121
- Affected
- gnupg/gnupg · gpg4win/gpg4win
- Source
- cve@mitre.org
References
- https://dev.gnupg.org/T8045Exploit, Product
- https://www.openwall.com/lists/oss-security/2026/01/27/8Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:2719
- https://access.redhat.com/errata/RHSA-2026:2753
- https://access.redhat.com/security/cve/CVE-2026-24882
- https://bugzilla.redhat.com/show_bug.cgi?id=2433464
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24882.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.