CVE-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 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.

CVSS v3 7.4 HIGH
CVSS v2.0 6.5 MEDIUM

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 3.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/open5gs/open5gs/
https://github.com/open5gs/open5gs/commit/a9c82ee0b590d76a581b0580cb46b598984e2392
https://github.com/open5gs/open5gs/issues/4661
https://vuldb.com/cve/CVE-2026-78156
https://vuldb.com/submit/882951
https://vuldb.com/vuln/394539
https://vuldb.com/vuln/394539/cti

Configurations

No configuration.

History

14 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Se ha detectado una vulnerabilidad de seguridad en Open5GS 2.8.0. Afectada por este problema es la función hss_ogs_diam_s6a_air_cb del archivo src/hss/hss-s6a-path.c del componente Gestor S6a de Solicitud de Información de Autenticación. Tal manipulación del argumento Visited-PLMN-Id conduce a un desbordamiento de búfer basado en montículo. El ataque puede ser realizado desde remoto. El nombre del parche es a9c82ee0b590d76a581b0580cb46b598984e2392. Un parche debería ser aplicado para remediar este problema.

Information

Published : 2026-08-24 00:16

Updated : 2026-10-14 13:10

NVD link : CVE-2026-78156

Mitre link : CVE-2026-78156

CVE.ORG link : CVE-2026-78156

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-122

Heap-based Buffer Overflow

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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."}, {"lang": "es", "value": "Se ha detectado una vulnerabilidad de seguridad en Open5GS 2.8.0. Afectada por este problema es la funci\u00f3n hss_ogs_diam_s6a_air_cb del archivo src/hss/hss-s6a-path.c del componente Gestor S6a de Solicitud de Informaci\u00f3n de Autenticaci\u00f3n. Tal manipulaci\u00f3n del argumento Visited-PLMN-Id conduce a un desbordamiento de b\u00fafer basado en mont\u00edculo. El ataque puede ser realizado desde remoto. El nombre del parche es a9c82ee0b590d76a581b0580cb46b598984e2392. Un parche deber\u00eda ser aplicado para remediar este problema."}], "lastModified": "2026-10-14T13:10:00.187", "sourceIdentifier": "cna@vuldb.com"}