CVE-2026-24882
High
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.
SeverityHigh
CVSS8.4
Exploit probability—
ProductGnupg
PublishedJan 27, 2026
First seenJan 27, 2026
Weakness typeCWE-121CWE-121
How to fix
Update
- gnupg gnupg2.5.17 or later
- gpg4win gpg4win5.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnupg gnupg | 2.5.13 ≤ v < 2.5.17 | 2.5.17 |
| gpg4win gpg4win | 5.0.0 ≤ v < 5.0.1 | 5.0.1 |
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