Nsd
13 CVEs tracked. None of them is in CISA KEV.
This hub aggregates every CVE we track for Nsd, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.
Nsd CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 0 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 0 |
| 2025-03 | 0 |
| 2025-04 | 0 |
| 2025-05 | 0 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 0 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 4 |
| 2026-07 | 0 |
| 2026-08 | 4 |
| 2026-09 | 0 |
Severity
How the 13 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical1
- High7
- Medium4
Latest CVEs
The 13 most recently published vulnerabilities affecting Nsd.
- CVE-2026-19538Bypass of BLOCKED ACL items on proxy protocol port over TCP or TLS7.5
- CVE-2026-19401Remote UDP DoS by sending multiple DNS Cookie options—
- CVE-2026-18916Remote TCP DoS by throttling the TCP receive window7.5
- CVE-2026-18664Wrong interpretation of ACL ranges9.1
- CVE-2026-12490Bypass of client certificate verification with transfer over TLS7.5
- CVE-2026-12246Out of bounds stack write with crafted APL RR8.1
- CVE-2026-12245Denial of DNS over TLS service by any DoT client7.5
- CVE-2026-12244Heap overflow and crash with crafted SVCB RR8.8
- CVE-2020-28935Local symlink attack in Unbound and NSD5.5
- CVE-2013-5661Cache Poisoning issue exists in DNS Response Rate Limiting.5.9
- CVE-2016-6173NSD before 4.1.11 allows remote DNS master servers to cause a denial of service (/tmp disk consumption and slave server crash) via a zone transfer with unlimited data.7.5
- CVE-2012-2978query.c in NSD 3.0.x through 3.0.8, 3.1.x through 3.1.1, and 3.2.x before 3.2.12 allows remote attackers to cause a denial of service (NULL pointer dereference and child process crash) via a crafte...5.0
- CVE-2009-1755Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) ...5.0
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