SEPTEMBER 17, 2026
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Case File

CVE-2026-91855

MEDIUM · CVSS 5.3 EPSS 0.42% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-15 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

Open5GS versions up to 2.7.7 contain a vulnerability in the PFCP Message Handler, which can be exploited to cause a denial of service through remote manipulation. Organizations using Open5GS should prioritize applying the available patch (028e1dbb5e3271035ccee906ef417a97fc523f71) to mitigate the risk of potential attacks, as the exploit has been publicly released.

Public Exploit Signal

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

Detected Signals
exploit

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

CVE
CVE-2026-91855
Severity
MEDIUM
CVSS
5.3
EPSS
0.42%

Original NVD Description

A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this vulnerability is an unknown functionality of the file lib/pfcp/handler.c of the component PFCP Message Handler. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The patch is named 028e1dbb5e3271035ccee906ef417a97fc523f71. Applying a patch is the recommended action to fix this issue. CVE-2025-29339 describes a different assertion failure vulnerability in Open5GS UPF.