Findings

CVE-2026-78156

A security vulnerability has been detected in Open5GS 2.8.0.

Published Aug 24, 2026 · updated Oct 14, 2026

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.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 24, 2026 · NIST NVD

    Detected

    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 a9c82ee0b590d76a581b058

  2. Oct 14, 2026 · NIST NVD

    Updated

    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 a9c82ee0b590d76a581b058

Sources

  • CVE.orgCVE-2026-78156

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2026-78156

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDCVE-2026-78156

    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

    nvd.nist.gov

References

CVE-2026-78156 · ZeroDay Findings