High severity · published Jan 27, 2026
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
7.8
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GN
GnuPG · GnuPG
before 2.5.17 · source: vendor, NVD
GP
Gpg4win · Gpg4win
5.0.0 before 5.0.1 · source: NVD
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-24882
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-24882
Exploit
https://dev.gnupg.org/T8045
Mailing List
https://www.openwall.com/lists/oss-security/2026/01/27/8
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:2719
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:2753
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-24882
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2433464
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