VULNERABILITY INTELLIGENCE

CVE-2026-81704

CVSS score7.5 HIGH
EPSS probability0.27%
CISA KEVNot currently listed
Published2026-08-27
Last modified2026-09-03
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

openssl_encrypt versions before 1.4.9 contain a weak key derivation vulnerability in the D-Bus CryptoService.EncryptFile handler that uses unstretched SHA-256 instead of Argon2id. Attackers can perform offline password guessing against encrypted files roughly six to seven orders of magnitude faster than documented protection by exploiting the missing key stretching and hash rounds.

Weakness classification

  • disclosure@vulncheck.com: CWE-916

Primary references