TI-2025-18636 Aliases CVE-2025-24956 GHSA-357m-v762-qj4c

Buffer overflow in Siemens OpenV2G

LOW 31CWE-120Published 2025-02-11 · Updated 2025-02-12

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

A vulnerability has been identified in OpenV2G (All versions < V0.9.6). The OpenV2G EXI parsing feature is missing a length check when parsing X509 serial numbers. Thus, an attacker could introduce a buffer overflow that leads to memory corruption.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00403 34th percentileScored 2026-11-07

Fix Fixed OpenV2G (Siemens): V0.9.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Siemens	OpenV2G	before V0.9.6	V0.9.6	Patch available	CNA

OpenV2G VendorSiemens Affected before V0.9.6 Fixed in V0.9.6 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:siemens:openv2g::::::::	before 0.9.6	Vulnerable	Siemens

cpe:2.3:a:siemens:openv2g:*:*:*:*:*:*:*:* Versions before 0.9.6 Vulnerable ·Siemens

Remediation

Fix · CNA OpenV2G (Siemens) Fixed in V0.9.6

Timeline

2026-10-02 Threatist record created from CVE-2025-24956
2026-10-03 Alias added: GHSA-357m-v762-qj4c

References

Advisory 1

https://cert-portal.siemens.com/productcert/html/ssa-647005.html

TI-2022-10361 Buffer overflow in Siemens OpenV2G CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences