What is CVE-2025-12875?

CVE-2025-12875 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. mruby array.c ary_fill_exec out-of-bounds write

Which CVE IDs does CVE-2025-12875 cover?

CVE-2025-12875 covers the following CVE IDs: CVE-2025-12875. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-12875?

CVE-2025-12875 has a CVSS v3 base score of 5.3, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-12875?

CVE-2025-12875 affects 2 products, including: azl3 nghttp2 1.61.0-2 on Azure Linux 3.0; cbl2 nghttp2 1.57.0-2 on CBL Mariner 2.0.

CVE-2025-12875MediumCVSS 5.3

mruby array.c ary_fill_exec out-of-bounds write

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-12875 →

🎯 Affected products2

azl3 nghttp2 1.61.0-2 on Azure Linux 3.0
cbl2 nghttp2 1.57.0-2 on CBL Mariner 2.0

🔗 References (1)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-12875