Is CVE-2026-3336 actively exploited?

No active exploitation of CVE-2026-3336 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3336 be exploited remotely?

Yes. CVE-2026-3336 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3336?

CVE-2026-3336 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-3336

CWE-295Published: March 2, 2026· Updated: Mar 9, 2026

7.5

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:6.2th

Official Description

Improper certificate validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass certificate chain verification when processing PKCS7 objects with multiple signers, except the final signer.

Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.

NVD Source

Technical Analysis

CVE-2026-3336 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 full integrity compromise (data manipulation), with a CVSS base score of 7.5.