Is CVE-2026-2968 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-2968, but active exploitation has not been confirmed.

Can CVE-2026-2968 be exploited remotely?

Yes. CVE-2026-2968 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2968?

CVE-2026-2968 has a CVSS score of 3.7 (LOW) and an EPSS exploitation probability of 0.01%.

HOME VULNERABILITIESCVE-2026-2968

LOWPOC

CVE-2026-2968

CWE-345Published: February 23, 2026· Updated: Feb 23, 2026

3.7

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:0.5th

Official Description

A vulnerability was detected in Cesanta Mongoose up to 7.20. This impacts the function mg_chacha20_poly1305_decrypt of the file /src/tls_chacha20.c of the component Poly1305 Authentication Tag Handler. The manipulation results in improper verification of cryptographic signature. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is said to be difficult. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

NVD Source

Technical Analysis

CVE-2026-2968 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 proof-of-concept (PoC) exploit exists for CVE-2026-2968. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.