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”).
CVE-2026-61371
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-15. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 65(Attend)EG Risk 65/100SSVC: Attend
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 1%
- EPSS %ILE
- 43%
- KEV
- Not listed
Published
July 15, 2026
Last Modified
July 15, 2026
Advisory Details (3)
Auto-updated Jul 15, 2026CVE-2026-61371 - Microsoft AVML symlink following on destination output open (CWE-59) · GitHub
https://gist.github.com/thesmartshadow/2d099071f847de8db3dc4bbaf4dfa6dfv0.17.0
Patch available: microsoft/avml v0.17.0
https://github.com/microsoft/avml/releases/tag/v0.17.0don't follow symlinks on file creation
Fix merged in microsoft/avml PR #754 on 2026-03-06 — awaiting tagged release
https://github.com/microsoft/avml/pull/754Vendor Advisories for CVE-2026-61371(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 21× in last 7d / 116× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 163 total refreshes for this CVE.
- 2026-08-30 03:59 UTCEG score recompute
- 2026-08-30 03:59 UTCGHSA enrichment
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-28 21:42 UTCEPSS rescore
- 2026-08-27 23:54 UTCEG score recompute
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- 2026-08-25 23:58 UTCEG score recompute
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- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-25 12:34 UTCGHSA enrichment
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- 2026-08-24 14:36 UTCEG score recompute
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- 2026-08-23 04:22 UTCEG score recompute
- 2026-08-23 04:22 UTCGHSA enrichment
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 17:32 UTCGHSA enrichment
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- 2026-08-22 06:43 UTCEG score recompute
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- 2026-08-21 23:49 UTCEPSS rescore
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- 2026-08-21 09:05 UTCEG score recompute
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- 2026-08-20 00:21 UTCEG score recompute
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- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-19 06:51 UTCGHSA enrichment
- 2026-08-18 20:01 UTCEG score recompute
- 2026-08-18 20:01 UTCGHSA enrichment
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- 2026-08-18 02:35 UTCGHSA enrichment
- 2026-08-17 15:29 UTCEG score recompute
- 2026-08-17 15:29 UTCGHSA enrichment
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- 2026-08-17 04:39 UTCGHSA enrichment
- 2026-08-16 17:50 UTCEG score recompute
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- 2026-08-16 06:38 UTCEG score recompute
- 2026-08-16 06:38 UTCGHSA enrichment
- 2026-08-15 19:49 UTCGHSA enrichment
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- 2026-08-15 08:59 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
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- 2026-08-14 00:32 UTCEG score recompute
- 2026-08-14 00:32 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 13:42 UTCGHSA enrichment
- 2026-08-13 02:48 UTCGHSA enrichment
- 2026-08-12 15:59 UTCEG score recompute
- 2026-08-12 15:59 UTCGHSA enrichment
- 2026-08-12 13:51 UTCEPSS rescore
- 2026-08-12 05:10 UTCGHSA enrichment
- 2026-08-11 18:21 UTCEG score recompute
- 2026-08-11 18:20 UTCGHSA enrichment
- 2026-08-11 07:25 UTCEG score recompute
- 2026-08-11 07:25 UTCGHSA enrichment
- 2026-08-11 00:00 UTCEPSS rescore
- 2026-08-10 20:36 UTCGHSA enrichment
- 2026-08-10 09:47 UTCGHSA enrichment
- 2026-08-09 22:58 UTCEG score recompute
- 2026-08-09 22:58 UTCGHSA enrichment
- 2026-08-09 13:47 UTCEPSS rescore
- 2026-08-09 12:09 UTCGHSA enrichment
- 2026-08-09 01:20 UTCEG score recompute
- 2026-08-09 01:20 UTCGHSA enrichment
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-08 14:31 UTCGHSA enrichment
- 2026-08-08 03:42 UTCGHSA enrichment
- 2026-08-07 16:53 UTCEG score recompute
- 2026-08-07 16:53 UTCGHSA enrichment
- 2026-08-07 06:04 UTCGHSA enrichment
- 2026-08-06 19:14 UTCEG score recompute
- 2026-08-06 19:14 UTCGHSA enrichment
- 2026-08-06 13:47 UTCEPSS rescore
- 2026-08-06 08:25 UTCGHSA enrichment
- 2026-08-05 21:36 UTCEG score recompute
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- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 10:47 UTCGHSA enrichment
- 2026-08-04 23:55 UTCEG score recompute
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- 2026-08-04 15:10 UTCEPSS rescore
- 2026-08-04 13:06 UTCEG score recompute
- 2026-08-04 13:05 UTCGHSA enrichment
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Frequently asked(5)
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-61371
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