Integer overflow or wraparound in Windows DNS allows an authorized attacker to elevate privileges locally.
CVE-2026-65799
This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 84% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.
- 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
- 7.8
- EG Score
- 7.8(medium)
- EG Risk
- 35(Track)EG Risk 35/100SSVC: Track
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 computedSeverity78% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 16%
- KEV
- Not listed
Published
August 11, 2026
Last Modified
August 20, 2026
Advisory Details (1)
Auto-updated Aug 11, 2026Security Update Guide - Microsoft Security Response Center
Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65799Vendor Advisories for CVE-2026-65799(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 86× in last 7d / 130× 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 130 total refreshes for this CVE.
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 22:18 UTCVendor advisory
- 2026-08-20 22:18 UTCGHSA enrichment
- 2026-08-20 21:58 UTCVendor advisory
- 2026-08-20 21:58 UTCGHSA enrichment
- 2026-08-20 16:39 UTCVendor advisory
- 2026-08-20 16:39 UTCGHSA enrichment
- 2026-08-20 14:58 UTCVendor advisory
- 2026-08-20 14:58 UTCGHSA enrichment
- 2026-08-20 14:09 UTCVendor advisory
- 2026-08-20 14:09 UTCGHSA enrichment
- 2026-08-20 10:32 UTCVendor advisory
- 2026-08-20 10:32 UTCGHSA enrichment
- 2026-08-19 21:29 UTCVendor advisory
- 2026-08-19 21:29 UTCGHSA enrichment
- 2026-08-19 21:08 UTCVendor advisory
- 2026-08-19 21:08 UTCGHSA enrichment
- 2026-08-19 17:30 UTCEG score recompute
- 2026-08-19 17:30 UTCVendor advisory
- 2026-08-19 17:30 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-19 16:48 UTCVendor advisory
- 2026-08-19 16:48 UTCGHSA enrichment
- 2026-08-19 15:23 UTCVendor advisory
- 2026-08-19 15:23 UTCGHSA enrichment
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- 2026-08-19 15:11 UTCVendor advisory
- 2026-08-19 15:11 UTCGHSA enrichment
- 2026-08-19 14:27 UTCVendor advisory
- 2026-08-19 14:27 UTCGHSA enrichment
- 2026-08-19 11:45 UTCVendor advisory
- 2026-08-19 11:45 UTCGHSA enrichment
- 2026-08-18 22:41 UTCGHSA enrichment
- 2026-08-18 22:05 UTCGHSA enrichment
- 2026-08-18 17:40 UTCEG score recompute
- 2026-08-18 17:40 UTCVendor advisory
- 2026-08-18 17:40 UTCGHSA enrichment
- 2026-08-18 13:48 UTCEPSS rescore
- 2026-08-18 13:28 UTCVendor advisory
- 2026-08-18 13:28 UTCGHSA enrichment
- 2026-08-18 07:51 UTCGHSA enrichment
- 2026-08-17 18:47 UTCEG score recompute▲ 1.10
- 2026-08-17 18:47 UTCVendor advisory
- 2026-08-17 18:47 UTCGHSA enrichment
- 2026-08-17 18:46 UTCNVD updateCVSS v3 → 7.8 · severity → HIGH
- 2026-08-17 18:03 UTCVendor advisory
- 2026-08-17 18:03 UTCGHSA enrichment
- 2026-08-17 16:12 UTCEG score recompute
- 2026-08-17 16:12 UTCVendor advisory
- 2026-08-17 16:12 UTCGHSA enrichment
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-16 19:20 UTCEG score recompute
- 2026-08-16 19:20 UTCVendor advisory
- 2026-08-16 19:20 UTCGHSA enrichment
- 2026-08-16 19:03 UTCVendor advisory
- 2026-08-16 19:03 UTCGHSA enrichment
- 2026-08-16 18:38 UTCVendor advisory
- 2026-08-16 18:38 UTCGHSA enrichment
- 2026-08-16 17:28 UTCVendor advisory
- 2026-08-16 17:28 UTCGHSA enrichment
- 2026-08-16 16:35 UTCEG score recompute
- 2026-08-16 16:35 UTCVendor advisory
- 2026-08-16 16:35 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-15 20:06 UTCEG score recompute
- 2026-08-15 20:06 UTCVendor advisory
- 2026-08-15 20:06 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-14 21:59 UTCVendor advisory
- 2026-08-14 21:59 UTCGHSA enrichment
- 2026-08-14 21:15 UTCVendor advisory
- 2026-08-14 21:15 UTCGHSA enrichment
- 2026-08-14 20:34 UTCVendor advisory
- 2026-08-14 20:34 UTCGHSA enrichment
- 2026-08-14 18:55 UTCVendor advisory
- 2026-08-14 18:55 UTCGHSA enrichment
- 2026-08-14 18:34 UTCVendor advisory
- 2026-08-14 18:34 UTCGHSA enrichment
- 2026-08-14 17:31 UTCVendor advisory
- 2026-08-14 17:31 UTCGHSA enrichment
- 2026-08-14 16:45 UTCVendor advisory
- 2026-08-14 16:45 UTCGHSA enrichment
- 2026-08-14 16:25 UTCVendor advisory
- 2026-08-14 16:25 UTCGHSA enrichment
- 2026-08-14 15:55 UTCEG score recompute
- 2026-08-14 15:55 UTCVendor advisory
- 2026-08-14 15:55 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 17:48 UTCVendor advisory
- 2026-08-13 17:48 UTCGHSA enrichment
- 2026-08-13 17:28 UTCVendor advisory
- 2026-08-13 17:28 UTCGHSA enrichment
- 2026-08-13 16:18 UTCVendor advisory
- 2026-08-13 16:18 UTCGHSA enrichment
- 2026-08-12 18:12 UTCVendor advisory
- 2026-08-12 18:12 UTCGHSA enrichment
- 2026-08-12 15:14 UTCEG score recompute
- 2026-08-12 15:14 UTCVendor advisory
- 2026-08-12 15:14 UTCGHSA enrichment
- 2026-08-12 13:51 UTCEPSS rescore
- 2026-08-12 05:30 UTCEG score recompute
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Same vendor
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Frequently asked(5)
What is CVE-2026-65799?
When was CVE-2026-65799 disclosed?
Is CVE-2026-65799 actively exploited?
What is the CVSS score of CVE-2026-65799?
How do I remediate CVE-2026-65799?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-65799
Is Your Infrastructure Affected by CVE-2026-65799?
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