SEPTEMBER 19, 2026
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Case File

CVE-2026-78156

HIGH · CVSS 7.4 EPSS 0.33% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-24 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

Open5GS version 2.8.0 is vulnerable to a heap-based buffer overflow in the S6a Authentication-Information-Request Handler, specifically in the hss_ogs_diam_s6a_air_cb function, due to improper handling of the Visited-PLMN-Id argument. This vulnerability can be exploited remotely, potentially allowing attackers to execute arbitrary code or crash the service. Organizations using Open5GS should prioritize applying the provided patch to mitigate this high-severity risk.

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-2026-78156
Severity
HIGH
CVSS
7.4
EPSS
0.33%

Original NVD Description

A security vulnerability has been detected in Open5GS 2.8.0. Affected by this issue is the function hss_ogs_diam_s6a_air_cb of the file src/hss/hss-s6a-path.c of the component S6a Authentication-Information-Request Handler. Such manipulation of the argument Visited-PLMN-Id leads to heap-based buffer overflow. The attack may be performed from remote. The name of the patch is a9c82ee0b590d76a581b0580cb46b598984e2392. A patch should be applied to remediate this issue.