What is CVE-2025-5278?

CVE-2025-5278 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Coreutils: heap buffer under-read in gnu coreutils sort via key specification

Which CVE IDs does CVE-2025-5278 cover?

CVE-2025-5278 covers the following CVE IDs: CVE-2025-5278. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-5278?

CVE-2025-5278 has a CVSS v3 base score of 4.4, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-5278?

CVE-2025-5278 affects 2 products, including: azl3 coreutils 9.4-6 on Azure Linux 3.0; azl3 coreutils 9.4-7 on Azure Linux 3.0.

CVE-2025-5278MediumCVSS 4.4

Coreutils: heap buffer under-read in gnu coreutils sort via key specification

Vendor

Microsoft Security Response Center (MSRC)

Published

July 25, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-5278 →

🎯 Affected products2

azl3 coreutils 9.4-6 on Azure Linux 3.0
azl3 coreutils 9.4-7 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 9.4-7

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-5278
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade