CVE-2024-21377
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk48th percentile - higher than 48% of all known CVEs
Summary
A vulnerability in Windows DNS allows information disclosure. An attacker could exploit this flaw to access sensitive data.
Risk Assessment
The risk is the potential leakage of information related to DNS infrastructure, which could facilitate further attacks.
Recommendation
It is recommended to apply Windows security updates to eliminate this vulnerability.
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)
Windows DNS Information Disclosure Vulnerability
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

