CVE-2026-62820
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk44th percentile - higher than 44% of all known CVEs
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to execute code over a network.
Risk Assessment
An attacker could exploit the race condition to execute code remotely, potentially taking control of the DNS server.
Recommendation
Install the latest Windows security updates for the DNS service.
Other vulnerabilities in Windows DNS
See all- 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-2026-70166Medium
Out-of-bounds read in Windows DNS allows an authorized attacker to deny service over a network.
- 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-2026-70119Medium
Out-of-bounds read in Windows DNS allows an authorized attacker to execute code 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-2026-70074Medium
Out-of-bounds read in Windows DNS allows an authorized attacker to disclose information locally.
- 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.
Original NVD description (English source)
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to execute code over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS