CVE-2026-78523
Use after free in Windows DNS allows an unauthorized attacker to deny service over a network.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.9
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
- CWE
- CWE-416
- Published
- 2026-09-08
- Last modified
- 2026-09-09
Affected products
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2012
- Microsoft Windows Server 2012 (Server Core installation)
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2012 R2 (Server Core installation)
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core installation)
Weakness type
Related vulnerabilities
- CVE-2026-87877 — zstd-jni 1.3.8-4 through 1.5.7-13 Use-After-Free via Setters Called After close()
- CVE-2026-87825 — zstd-jni 1.3.8-4 through 1.5.7-13 Use-After-Free of Compression and Decompression Dictionaries
- CVE-2026-87617 — Use after free in DevTools in Google Chrome prior to 153.0.8010.36 allowed a remote attacker...
- CVE-2026-87448 — Use after free in DevTools in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to...
- CVE-2026-87634 — Use after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to...
- CVE-2026-87609 — Use after free in Sharing in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote...
- CVE-2026-87526 — Use after free in Passwords in Google Chrome prior to 153.0.8010.36 allowed a remote attacker...
- CVE-2026-87455 — Use after free in Aura in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to...