Is CVE-2026-2681 actively exploited?

No active exploitation of CVE-2026-2681 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-2681 be exploited remotely?

Yes. CVE-2026-2681 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2681?

CVE-2026-2681 has a CVSS score of 5.3 (MEDIUM) and an EPSS exploitation probability of 0.14%.

HOME VULNERABILITIESCVE-2026-2681

MEDIUM

CVE-2026-2681

CWE-787Published: February 19, 2026· Updated: Feb 19, 2026

5.3

CVSS v3.1

EPSS:0.10%probability of exploitation in 30 daysPercentile:28.4th

Official Description

A flaw was found in the blst cryptographic library. This out-of-bounds stack write vulnerability, specifically in the blst_sha256_bcopy assembly routine, occurs due to a missing zero-length guard. A remote attacker can exploit this by providing a zero-length salt parameter to key generation functions, such as blst_keygen_v5(), if the application exposes this functionality. Successful exploitation leads to memory corruption and immediate process termination, resulting in a denial-of-service (DoS) condition.

NVD Source

Technical Analysis

CVE-2026-2681 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.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.