---
id: CVE-2025-67897
title: >-
  In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is
  too short
summary: >-
  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 pa…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-195
published: '2025-12-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-67897'
references:
  - url: 'https://bugs.debian.org/1122582'
    label: cve@mitre.org
  - url: >-
      https://gitlab.com/sequoia-pgp/sequoia/-/blob/b59886e5e7bdf7169ed330f309a6633d131776e5/openpgp/NEWS#L7-L26
    label: cve@mitre.org
  - url: >-
      https://gitlab.com/sequoia-pgp/sequoia/-/commit/b59886e5e7bdf7169ed330f309a6633d131776e5
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00354
epssPercentile: 0.27314
ingestedAt: '2026-10-14T13:30:58.423Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.