CVEvulnerability

CVE-2026-32877

8.2 HIGH Published 2026-03-30 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-30
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Weaknesses
CWE-125

Description

Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value (C3) failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read of up to 31 bytes, resulting in a crash or potentially other undefined behavior. This issue has been patched in version 3.11.0.

Affected configurations

• botan project botan (>= 2.3.0 < 3.11.0)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References