CVE-2026-61371

7.5 HIGH 0.5% exploit odds Fix listed Other

What it is

Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (“truncation-before-validation”).

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure.
Exploit odds: 0.5% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-07-15 16:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-07-15 20:56 UTC Last updatedMost recent change to the record

Details

Published: 2026-07-15 16:16 UTC
Last modified: 2026-07-15 20:56 UTC
Exploit probability: 0.5% · EPSS, next 30 days
Weakness: CWE-59
Record status: Awaiting Analysis

Attack profile CVSS 3.1 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

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Fix and advisories

References

NVD record · CVE.org record