CVE-2026-61920
MediumCVSS 6.6Exploitation Probability (EPSS)
Low risk40th percentile - higher than 40% of all known CVEs
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an authorized attacker to execute code over a network.
Risk Assessment
An authorized user could exploit the race condition to execute malicious code on the DNS server, potentially leading to takeover.
Recommendation
Install Windows security updates and monitor network traffic on DNS servers.
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-2026-70079High
Improper enforcement of behavioral workflow 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.
Original NVD description (English source)
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an authorized attacker to execute code over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

