CVE-2025-24956: openv2g Buffer Overflow — Fix

Description

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.

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CVSS v3.1 Score

6.2

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
siemens	openv2g	< 0.9.6

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2025-24956? +

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. It has a CVSS v3.1 base score of 6.2 (MEDIUM).

How severe is CVE-2025-24956? +

CVE-2025-24956 has a CVSS v3.1 score of 6.2 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-24956? +

CVE-2025-24956 affects products from siemens, specifically: openv2g. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-24956? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-24956