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: 0.3%, top 83% 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
- 17%
- KEV
- Not listed
Published
August 11, 2026
Last Modified
September 16, 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 36× in last 7d / 171× 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 308 total refreshes for this CVE.
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-20 19:12 UTCVendor advisory
- 2026-09-20 19:12 UTCGHSA enrichment
- 2026-09-20 06:09 UTCVendor advisory
- 2026-09-20 06:09 UTCGHSA enrichment
- 2026-09-19 17:05 UTCEG score recompute
- 2026-09-19 17:05 UTCVendor advisory
- 2026-09-19 17:05 UTCGHSA enrichment
- 2026-09-19 02:47 UTCEG score recompute
- 2026-09-19 02:47 UTCVendor advisory
- 2026-09-19 02:47 UTCGHSA enrichment
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-18 13:43 UTCVendor advisory
- 2026-09-18 13:43 UTCGHSA enrichment
- 2026-09-18 00:37 UTCEG score recompute
- 2026-09-18 00:37 UTCVendor advisory
- 2026-09-18 00:37 UTCGHSA enrichment
- 2026-09-17 06:08 UTCVendor advisory
- 2026-09-17 06:08 UTCGHSA enrichment
- 2026-09-16 16:59 UTCEG score recompute
- 2026-09-16 16:59 UTCVendor advisory
- 2026-09-16 16:59 UTCGHSA enrichment
- 2026-09-16 14:08 UTCEPSS rescore
- 2026-09-16 11:42 UTCEG score recompute
- 2026-09-16 11:42 UTCVendor advisory
Show 75 moreShow fewer
- 2026-09-16 11:42 UTCGHSA enrichment
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-15 22:30 UTCVendor advisory
- 2026-09-15 22:29 UTCGHSA enrichment
- 2026-09-15 07:01 UTCEG score recompute
- 2026-09-15 07:01 UTCVendor advisory
- 2026-09-15 07:01 UTCGHSA enrichment
- 2026-09-14 17:57 UTCVendor advisory
- 2026-09-14 17:57 UTCGHSA enrichment
- 2026-09-14 10:36 UTCVendor advisory
- 2026-09-14 10:36 UTCGHSA enrichment
- 2026-09-13 21:30 UTCEG score recompute
- 2026-09-13 21:30 UTCVendor advisory
- 2026-09-13 21:30 UTCGHSA enrichment
- 2026-09-13 08:26 UTCVendor advisory
- 2026-09-13 08:26 UTCGHSA enrichment
- 2026-09-12 19:23 UTCEG score recompute
- 2026-09-12 19:23 UTCVendor advisory
- 2026-09-12 19:23 UTCGHSA enrichment
- 2026-09-12 06:19 UTCVendor advisory
- 2026-09-12 06:19 UTCGHSA enrichment
- 2026-09-11 17:15 UTCVendor advisory
- 2026-09-11 17:15 UTCGHSA enrichment
- 2026-09-11 15:57 UTCVendor advisory
- 2026-09-11 15:57 UTCGHSA enrichment
- 2026-09-11 15:36 UTCEG score recompute
- 2026-09-11 15:36 UTCVendor advisory
- 2026-09-11 15:36 UTCGHSA enrichment
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 09:37 UTCEPSS rescore
- 2026-09-11 05:07 UTCGHSA enrichment
- 2026-09-10 16:04 UTCGHSA enrichment
- 2026-09-10 09:48 UTCEG score recompute
- 2026-09-10 09:48 UTCGHSA enrichment
- 2026-09-09 20:26 UTCVendor advisory
- 2026-09-09 20:25 UTCGHSA enrichment
- 2026-09-09 11:10 UTCVendor advisory
- 2026-09-09 11:10 UTCGHSA enrichment
- 2026-09-08 22:06 UTCEG score recompute
- 2026-09-08 22:06 UTCVendor advisory
- 2026-09-08 22:06 UTCGHSA enrichment
- 2026-09-08 22:01 UTCEPSS rescore
- 2026-09-08 18:19 UTCVendor advisory
- 2026-09-08 18:19 UTCGHSA enrichment
- 2026-09-08 08:14 UTCVendor advisory
- 2026-09-08 08:14 UTCGHSA enrichment
- 2026-09-07 19:11 UTCEG score recompute
- 2026-09-07 19:11 UTCVendor advisory
- 2026-09-07 19:11 UTCGHSA enrichment
- 2026-09-07 16:01 UTCEPSS rescore
- 2026-09-07 06:08 UTCVendor advisory
- 2026-09-07 06:08 UTCGHSA enrichment
- 2026-09-06 16:35 UTCEG score recompute
- 2026-09-06 16:35 UTCVendor advisory
- 2026-09-06 16:35 UTCGHSA enrichment
- 2026-09-06 13:47 UTCEPSS rescore
- 2026-09-06 03:31 UTCEG score recompute
- 2026-09-06 03:31 UTCVendor advisory
- 2026-09-06 03:31 UTCGHSA enrichment
- 2026-09-05 15:31 UTCEPSS rescore
- 2026-09-05 14:26 UTCVendor advisory
- 2026-09-05 14:26 UTCGHSA enrichment
- 2026-09-05 01:10 UTCEG score recompute
- 2026-09-05 01:10 UTCVendor advisory
- 2026-09-05 01:10 UTCGHSA enrichment
- 2026-09-04 11:11 UTCEG score recompute
- 2026-09-04 11:11 UTCVendor advisory
- 2026-09-04 11:11 UTCGHSA enrichment
- 2026-09-04 05:07 UTCEPSS rescore
- 2026-09-03 21:33 UTCVendor advisory
- 2026-09-03 21:33 UTCGHSA enrichment
- 2026-09-03 15:39 UTCVendor advisory
- 2026-09-03 15:39 UTCGHSA enrichment
- 2026-09-03 08:22 UTCVendor advisory
- 2026-09-03 08:22 UTCGHSA enrichment
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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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