SEPTEMBER 18, 2026
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Case File

CVE-2026-8507

CRITICAL · CVSS 9.8 EPSS 0.65% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-17 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects OpenSSL. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-8507
Severity
CRITICAL
CVSS
9.8
EPSS
0.65%
OpenSSL

Original NVD Description

Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl have out-of-bounds (OOB) write flaws. When parsing a PKCS12 file, with a >= 1 GiB OCTET STRING (or BIT STRING) attribute on a SAFEBAG, via info() or info_as_hash(), a heap out-of-bounds write would be triggered with remote-code-execution potential (RCE) due to a signed integer overflow in the size calculation passed to Renew().