Product by NLnet Labs
NLnet Labs Unbound
73 known vulnerabilities in NLnet Labs Unbound (NLnet Labs), 0 of them actively exploited (CISA KEV).
Key figures
73
Vulnerabilities
0
Actively exploited (KEV)
0
Used by ransomware
12
Critical
Vulnerabilities
Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.
| High | CVE-2023-50387 | ISC BIND 9: Denial of Service | 7.5 | |
| Critical | CVE-2019-25032 | NLnet Labs Unbound: Integer Overflow | 9.8 | |
| Critical | CVE-2019-25034 | NLnet Labs Unbound: Out-of-Bounds Write | 9.8 | |
| Critical | CVE-2019-25035 | NLnet Labs Unbound: Out-of-Bounds Write | 9.8 | |
| Critical | CVE-2019-25039 | NLnet Labs Unbound: Integer Overflow | 9.8 | |
| Critical | CVE-2019-25042 | NLnet Labs Unbound: Out-of-Bounds Write | 9.8 | |
| Critical | CVE-2026-33278 | Possible arbitrary code execution during DNSSEC validation | 9.8 | |
| Critical | CVE-2019-25038 | NLnet Labs Unbound: Integer Overflow | 9.8 | |
| Critical | CVE-2026-81642 | Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY | 9.8 | |
| Critical | CVE-2019-25033 | NLnet Labs Unbound: Integer Overflow | 9.8 | |
| Critical | CVE-2026-82717 | CNAME synthesis could lead to heap corruption | 9.8 | |
| High | CVE-2020-12663 | NLnet Labs Unbound: Infinite Loop | 7.5 | |
| High | CVE-2019-16866 | NLnet Labs Unbound: Use of Uninitialized Memory | 7.5 | |
| High | CVE-2024-1931 | Denial of service when trimming EDE text on positive replies | 7.5 | |
| High | CVE-2020-12662 | NLnet Labs Unbound: security vulnerability | 7.5 | |
| High | CVE-2019-18934 | NLnet Labs Unbound: Code Execution | 7.3 | |
| High | CVE-2019-25037 | NLnet Labs Unbound: Denial of Service | 7.5 | |
| High | CVE-2019-25041 | NLnet Labs Unbound: security vulnerability | 7.5 | |
| High | CVE-2019-25036 | NLnet Labs Unbound: Denial of Service | 7.5 | |
| High | CVE-2019-25040 | NLnet Labs Unbound: Infinite Loop | 7.5 | |
| Medium | CVE-2017-15105 | NLnet Labs Unbound: Improperly Implemented Security Check for Standard | 5.3 | |
| High | CVE-2026-42944 | Heap overflow with multiple NSID, COOKIE, PADDING EDNS options | 7.5 | |
| High | CVE-2026-42959 | Crash during DNSSEC validation of malicious content | 7.5 | |
| High | CVE-2022-3204 | NRDelegation Attack | 7.5 | |
| High | CVE-2026-41292 | Long list of incoming EDNS options degrades performance | 7.5 |