Priority HIGH 84
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue…
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.9999 · Published 2024-02-14 · Fixed CWE-770
Priority HIGH 68
Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
CVSS 3.1HIGH 8.1· Network · No auth · No interaction · EPSS 0.00624 · Published 2026-07-25 · Fixed in 6.4.1 CWE-1284
Priority MEDIUM 63
BIRD through 2.0.7 does not provide functionality for password authentication of BGP peers.
CVSS 3.1MEDIUM 6.8· Network · Low privileges · No interaction · EPSS 0.01008 · Published 2021-06-04 · No fix listed CWE-306
Priority MEDIUM 45
Foris before 101.1.1, as used in Turris OS, lacks certain HTML escaping in the login template.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.01613 · Published 2021-01-29 · No fix listed
Priority MEDIUM 44
Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.02612 · Published 2020-05-19 · No fix listed CWE-400
Priority MEDIUM 43
Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01946 · Published 2022-09-23 · No fix listed CWE-407
Priority MEDIUM 40
Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.0076 · Published 2023-10-22 · No fix listed
Priority MEDIUM 40
Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00708 · Published 2023-02-21 · No fix listed CWE-770
Priority LOW 39
BIRD Internet Routing Daemon 1.6.x through 1.6.7 and 2.x through 2.0.5 has a stack-based buffer overflow.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.03153 · Published 2019-09-09 · No fix listed CWE-787
Priority LOW 39
Knot DNS before 1.5.2 allows remote attackers to cause a denial of service (application crash) via a crafted DNS message.
CVSS 3.0HIGH 7.5· Network · No auth · No interaction · EPSS 0.03329 · Published 2018-03-27 · No fix listed CWE-20
Priority LOW 37
knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.02107 · Published 2019-12-16 · No fix listed CWE-407
Priority LOW 37
A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using a…
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01932 · Published 2019-07-16 · No fix listed CWE-20
Priority LOW 37
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01993 · Published 2019-07-16 · No fix listed CWE-20
Priority LOW 36
Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01421 · Published 2021-08-25 · No fix listed CWE-617
Priority LOW 36
Improper input validation bug in DNS resolver component of Knot Resolver before 2.4.1 allows remote attacker to poison cache.
CVSS 3.1MEDIUM 6.8· Network · No auth · No interaction · EPSS 0.03239 · Published 2018-08-02 · Fixed in 2.4.1 CWE-20
Priority LOW 35
A flaw was found in knot-resolver before version 2.3.0.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01243 · Published 2021-03-30 · No fix listed CWE-20
Priority LOW 33
Cache Poisoning issue exists in DNS Response Rate Limiting.
CVSS 3.1MEDIUM 5.9· Network · No auth · No interaction · EPSS 0.0345 · Published 2019-11-05 · Will not fix CWE-290
Priority LOW 28
CZ.NIC BIRD Internet Routing Daemon through 2.19.0 contains a stack-based buffer overflow in the BGP AS_PATH mask matching implementation in nest/a-path.c.
CVSS 3.1MEDIUM 6.3· Network · Low privileges · No interaction · EPSS 0.003 · Published 2026-06-02 · No fix listed CWE-121
Priority LOW 25
Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.
CVSS 3.1MEDIUM 5.3· Network · No auth · No interaction · EPSS 0.00761 · Published 2022-06-20 · No fix listed CWE-290
Priority LOW 20
Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.
CVSS 3.1LOW 3.7· Network · No auth · No interaction · EPSS 0.01081 · Published 2018-01-22 · No fix listed CWE-20
Priority LOW 12
An IPv6 FlowSpec validation bypass in the CZ.NIC BIRD Internet Routing Daemon allows an established BGP peer to inject FlowSpec rules matching destinations outside the address space authorized by the unicast-route valida…
CVSS 4.0LOW 2.3· Network · Low privileges · No interaction · EPSS 0.00308 · Published 2026-10-18 · No fix listed CWE-1284