Recursor
Vendor:
First CVE: Nov 14, 2006 · Active for 19 years
61
Total CVEs
More Total CVEs than 98% of tracked products
4.7
Avg CVEs / Year
Higher CVE frequency than 87% of tracked products
6.6
Avg CVSS
Higher Avg CVSS than 32% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Recursor over time
Volume of CVEsAvg CVSS Base Score
First CVE
Nov 14, 2006
19 years ago
Most Recent CVE
Jul 23, 2026
1 day ago
CVE Severity & Scoring
Recursor61 CVEs
48%
46%
All CVEs352,294 CVEs
45%
40%
11%
LowMediumHighCritical
Attack Vector
Local0 (0.0%)
Network52 (85.2%)
Unknown9 (14.8%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low34 (55.7%)
High18 (29.5%)
Unknown9 (14.8%)
User Interaction
None51 (83.6%)
Unknown9 (14.8%)
Required1 (1.6%)
Privileges Required
Low3 (4.9%)
High3 (4.9%)
None46 (75.4%)
Unknown9 (14.8%)
Top CVEs
Signals from CVEs in this product scope (61 CVEs).
61 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2023-50387HIGH 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 D | Feb 14, 2024 | 7.5 | 78 | NO | NO |
CVE-2023-50868HIGH The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA- | Feb 14, 2024 | 7.5 | 72 | NO | NO |
CVE-2015-1868HIGH The label decompression functionality in PowerDNS Recursor 3.5.x, 3.6.x before 3.6.3, and 3.7.x before 3.7.2 and Authoritative (Auth) Server 3.2.x, 3.3.x before 3.3.2, and 3.4.x be | May 18, 2015 | 7.8 | 63 | NO | NO |
CVE-2018-16855HIGH An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of t | Dec 3, 2018 | 7.5 | 57 | NO | NO |
CVE-2014-8601MEDIUM PowerDNS Recursor before 3.6.2 does not limit delegation chaining, which allows remote attackers to cause a denial of service ("performance degradations") via a large or infinite n | Dec 10, 2014 | 5.0 | 56 | NO | NO |
CVE-2017-15120HIGH An issue has been found in the parsing of authoritative answers in PowerDNS Recursor before 4.0.8, leading to a NULL pointer dereference when parsing a specially crafted answer con | Jul 27, 2018 | 7.5 | 53 | NO | NO |
CVE-2026-33612HIGH A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning. | Jun 25, 2026 | 7.5 | 35 | NO | NO |
CVE-2009-4009HIGH Buffer overflow in PowerDNS Recursor before 3.1.7.2 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via crafted packets. | Jan 8, 2010 | 10.0 | 35 | NO | NO |
CVE-2020-10030HIGH An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It allows an attacker (with enough privileges to change the system's hostname) to cause disclosure of | May 19, 2020 | 8.8 | 33 | NO | NO |
CVE-2026-52688HIGH RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation | Jul 23, 2026 | 7.5 | 30 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (61 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (61 CVEs).
Media Mentions
Signals from CVEs in this product scope (61 CVEs).
Top CNAs Publishing CVEs For Recursor
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 5.4.0 | 9 | 6.3 | 0.5% | 0 | 0 |
| 5.3.1 | 1 | 5.3 | 0.3% | 0 | 0 |
| 5.3.0 | 1 | 5.3 | 0.3% | 0 | 0 |
| 4.8.0 | 1 | 7.5 | 7.3% | 0 | 0 |
| 4.1.0 | 1 | 3.7 | 1.3% | 0 | 0 |
| 3.7.2 | 1 | 7.8 | 11.3% | 0 | 0 |
| 3.7.1 | 2 | 7.8 | 46.6% | 0 | 0 |
| 3.6.3 | 1 | 7.8 | 81.8% | 0 | 0 |
| 3.6.2 | 1 | 7.8 | 81.8% | 0 | 0 |
| 3.6.1 | 1 | 7.8 | 81.8% | 0 | 0 |
| 3.6.0 | 1 | 7.8 | 81.8% | 0 | 0 |
| 3.5.3 | 1 | 7.8 | 81.8% | 0 | 0 |
| 3.5.2 | 1 | 7.8 | 81.8% | 0 | 0 |
| 3.5.1 | 1 | 7.8 | 81.8% | 0 | 0 |
| 3.5 | 1 | 7.8 | 81.8% | 0 | 0 |
| 3.1.7.1 | 2 | 8.8 | 13.9% | 0 | 0 |
| 3.1.7 | 2 | 8.8 | 13.9% | 0 | 0 |
| 3.1.6 | 2 | 8.8 | 13.9% | 0 | 0 |
| 3.1.5 | 2 | 8.8 | 13.9% | 0 | 0 |
| 3.1.4 | 3 | 8.1 | 9.9% | 0 | 0 |