CVE-2026-70079
HighCVSS 7.5Summary
Improper enforcement of behavioral workflow in Windows DNS. An unauthorized attacker can deny service over a network.
Risk Assessment
Potential DNS service unavailability, which may disrupt network operations and applications relying on name resolution.
Recommendation
Install Microsoft updates for Windows DNS and implement DNS availability monitoring to quickly detect DoS attacks.
Other vulnerabilities in Windows DNS
See all- CVE-2026-70155High
Missing release of memory after effective lifetime in Windows DNS. An unauthorized attacker can exploit this to cause a denial of service over a network.
- CVE-2026-70082High
Uncaught exception in Windows DNS. An unauthorized attacker can deny service over a network.
- CVE-2026-69730Critical
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
- CVE-2026-62878Critical
A stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
- CVE-2026-78523Medium
A use-after-free vulnerability in Windows DNS allows an unauthorized attacker to cause a denial of service over a network.
- CVE-2026-72987High
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
- CVE-2026-72948Medium
Relative path traversal in Windows DNS allows an authorized attacker to elevate privileges locally.
- CVE-2026-72928High
Use-after-free in Windows DNS allows an authorized attacker to execute code over a network.
- CVE-2026-70091Medium
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to deny service over a network.
- CVE-2026-69858High
A use-after-free vulnerability in Windows DNS allows an unauthorized attacker to execute code over a network.
Original NVD description (English source)
Improper enforcement of behavioral workflow in Windows DNS allows an unauthorized attacker to deny service over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

