Is CVE-2026-32877 actively exploited?

No active exploitation of CVE-2026-32877 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-32877 be exploited remotely?

Yes. CVE-2026-32877 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-32877?

CVE-2026-32877 has a CVSS score of 8.2 (HIGH).

HOME VULNERABILITIESCVE-2026-32877

HIGH

CVE-2026-32877

CWE-125Published: March 30, 2026· Updated: Apr 1, 2026

8.2

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:13.8th

Official 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.

NVD Source

Technical Analysis

CVE-2026-32877 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.2.