What is CVE-2026-3713?

CVE-2026-3713 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow

Which CVE IDs does CVE-2026-3713 cover?

CVE-2026-3713 covers the following CVE IDs: CVE-2026-3713. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-3713?

CVE-2026-3713 has a CVSS v3 base score of 5.3, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-3713?

CVE-2026-3713 affects 7 products, including: azl3 libpng 1.6.55-1 on Azure Linux 3.0; azl3 libpng 1.6.56-1 on Azure Linux 3.0; azl3 libpng 1.6.57-1 on Azure Linux 3.0; azl3 libpng 1.6.58-1 on Azure Linux 3.0; cbl2 libpng 1.6.55-1 on CBL Mariner 2.0; and others — see the full list on the advisory page.

CVE-2026-3713MediumCVSS 5.3

pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-3713 →

🎯 Affected products7

azl3 libpng 1.6.55-1 on Azure Linux 3.0
azl3 libpng 1.6.56-1 on Azure Linux 3.0
azl3 libpng 1.6.57-1 on Azure Linux 3.0
azl3 libpng 1.6.58-1 on Azure Linux 3.0
cbl2 libpng 1.6.55-1 on CBL Mariner 2.0
cbl2 libpng 1.6.56-1 on CBL Mariner 2.0
cbl2 libpng 1.6.56-1 on CBL-Mariner 2.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3713
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade