SEPTEMBER 15, 2026
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Case File

CVE-2026-81701

CRITICAL · CVSS 9.8 EPSS 0.29% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-27 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

OpenSSL versions prior to 1.4.9 are vulnerable due to a flaw in the openssl_encrypt function, which improperly allows unsigned plugins to bypass signature verification. This vulnerability enables attackers to execute arbitrary code within the command-line interface, potentially compromising sensitive data such as passwords and cryptographic keys. Organizations using affected versions of OpenSSL should prioritize patching this critical vulnerability to mitigate the risk of exploitation.

Public Exploit Signal

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

Detected Signals
arbitrary code execution code execution
GitHub PoC Links

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

CVE
CVE-2026-81701
Severity
CRITICAL
CVSS
9.8
EPSS
0.29%
OpenSSL

Original NVD Description

openssl_encrypt versions before 1.4.9 use a denylist to identify trusted built-in plugins, allowing unsigned plugins in top-level plugins/ directories and unknown subdirectories to bypass signature verification. Attackers can place malicious unsigned plugins following documented installation paths to achieve arbitrary code execution in the CLI process with access to passwords and cryptographic keys.

Related CVEs

Other vulnerabilities affecting the same vendor(s)