Out-of-Bounds Read in Microsoft DNS Server (CVE-2026-83635)
Summary
Vulnerability in Microsoft DNS Server (CVE-2026-83635). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Out-of-bounds read in DNS Server allows an unauthorized attacker to deny service over a network.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A weakness called CVE-2026-83635 was discovered in Microsoft DNS Server.
Severity is High (CVSS 7.5/10). If exploited, attackers can leak data or disrupt key functionality.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "Microsoft DNS Server CVE-2026-83635".
CVE-2026-83635 (Microsoft DNS Server). Severity: High / CVSSv3 7.5. Category: CWE-125.
Response plan:
- Check the vendor advisory for affected versions and the patched release.
- If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
- If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
- Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
A weakness (CVE-2026-83635) in Microsoft DNS Server. A serious software flaw has been identified.
Target versions of Microsoft DNS Server (see vendor advisory). If running in production, identify exposure immediately.
Severity: High (CVSS 7.5/10). If exploited, attackers can leak data or disrupt key functionality.
Update to the patched release as listed in the vendor advisory. (Typical mitigation pattern for CWE-125)
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
References
- patch secure@microsoft.com
- web nvd.nist.gov
- web github.com