CVE-2025-67897

In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is too short. A remote attacker can take advantage of this issue to crash an application by sending a victim an encrypted message with a crafted PKESK or SKESK packet.

CVE-2025-67897 is fixed in rust-sequoia-openpgp on 1 platform, first by DEBIAN-CVE-2025-67897, released December 14, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

5.3

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0035

29th percentile

In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is too short. A remote attacker can take advantage of this issue to crash an application by sending a victim an encrypted message with a crafted PKESK or SKESK packet.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
rust-sequoia-openpgp · Debian 13.5 (trixie)	2.0.0-2+deb13u1	DEBIAN-CVE-2025-67897	Dec 14, 2025
rust-sequoia-openpgp · Debian 14	2.1.0-1	DEBIAN-CVE-2025-67897	Dec 14, 2025

Details

Published
December 14, 2025
Weakness
Signed to Unsigned Conversion Error
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-67897

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