# 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.

- Web page: https://patchblox.com/security/cve/CVE-2025-67897
- Priority: Routine
- CVSS: 5.3 (Moderate)
- EPSS: 0.0035
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 14, 2025
- Weakness: Signed to Unsigned Conversion Error
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-67897

## Description

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

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rust-sequoia-openpgp Debian 13.5 (trixie) | 2.0.0-2+deb13u1 | [DEBIAN-CVE-2025-67897](https://patchblox.com/security/data/fix/linux/debian-cve-2025-67897.md) | Dec 14, 2025 |
| Linux | rust-sequoia-openpgp Debian 14 | 2.1.0-1 | [DEBIAN-CVE-2025-67897](https://patchblox.com/security/data/fix/linux/debian-cve-2025-67897.md) | Dec 14, 2025 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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