Is CVE-2026-41676 actively exploited?

No active exploitation of CVE-2026-41676 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-41676 be exploited remotely?

Yes. CVE-2026-41676 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-41676?

CVE-2026-41676 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2026-41676

CRITICAL

CVE-2026-41676

CWE-131Published: April 24, 2026· Updated: Apr 28, 2026

9.8

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.7th

Official Description

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.27 to before 0.10.78, Deriver::derive (and PkeyCtxRef::derive) sets len = buf.len() and passes it as the in/out length to EVP_PKEY_derive, relying on OpenSSL to honor it. On OpenSSL 1.1.x, X25519, X448, DH and HKDF-extract ignore the incoming *keylen, unconditionally writing the full shared secret (32/56/prime-size bytes). A caller passing a short slice gets a heap/stack overflow from safe code. OpenSSL 3.x providers do check, so this only impacts older OpenSSL. This vulnerability is fixed in 0.10.78.

NVD Source

Technical Analysis

CVE-2026-41676 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.