CVE-2025-14813 CRITICAL

CVE-2025-14813: GOSTCTR implementation unable to process more than 255 blocks correctly

Vendor Legion Of The Bouncy Castle Inc.
Product BC-JAVA
Weakness CWE-327 · Broken crypto
Published April 15, 2026
Last update June 30, 2026

CVSS base score

9.3/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/RE:M/U:Red

What the vulnerability does

01Description

: Use of a Broken or Risky Cryptographic Algorithm vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcprov on all (core modules). This vulnerability is associated with program files G3413CTRBlockCipher. This issue affects BC-JAVA: from 1.59 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

Key dates

02Disclosure timeline

April 15, 2026 CVE published
June 30, 2026 Record updated