SEPTEMBER 13, 2026
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Case File

CVE-2026-51540

CRITICAL · CVSS 9.8 EPSS 0.42% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-13 · Last synced 2026-08-12

CyberRota Analysis

AI-Generated

OpENer 2.3.0 is susceptible to a critical memory corruption vulnerability due to an integer underflow when handling connected explicit messages (SendUnitData). This flaw could allow an attacker to execute arbitrary code, potentially compromising the integrity and availability of affected systems. Organizations utilizing OpENer should prioritize immediate remediation to mitigate the risk of exploitation.

Public Exploit Signal

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

GitHub PoC Links
gist.github.com ↗ github.com ↗

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

CVE
CVE-2026-51540
Severity
CRITICAL
CVSS
9.8
EPSS
0.42%

Original NVD Description

OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-51541 CRITICAL CVE-2026-51538 CRITICAL CVE-2026-51537 CRITICAL CVE-2026-51536 CRITICAL CVE-2022-43606 HIGH CVE-2022-43605 CRITICAL