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CVE-2022-27227

27
FAUCET Score

CVE-2022-27227 is a high-severity vulnerability affecting PowerDNS Authoritative Server and Recursor, where insufficient validation of IXFR end conditions leads to incomplete zone transfers being treated as successful. This network-exploitable flaw allows an unauthenticated attacker to cause a denial of service (A:H) by corrupting DNS zone data. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4.3CPE matchmatch criteria
cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*
>= 4.5.0, < 4.5.4CPE matchmatch criteria
cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*
>= 4.6.0, < 4.6.1CPE matchmatch criteria
cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*
< 4.4.8CPE matchmatch criteria
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
>= 4.5.0, < 4.5.8CPE matchmatch criteria
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.03%
Probability of exploitation in next 30 days
EPSS Percentile
91.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0503 is in the 85th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

doc.powerdns.com / authoritative/security-advisories/index.html
Vendor Advisory
doc.powerdns.com / authoritative/security-advisories/powerdns-advisory-2022-01.html
Vendor Advisory
docs.powerdns.com / recursor/security-advisories/index.html
Vendor Advisory
docs.powerdns.com / recursor/security-advisories/powerdns-advisory-2022-01.html
Vendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/2QKN56VWXUVFOYGUN75N5IRNK66OHTHT
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/HEABZA46XYEUWMGSY2GYYVHISBVWEHIO
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/IPHOFNI7FKM5NNOVDOWO4TBXFAFICCUE
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ZJSKICB67SPPEGNXCQLZVSWR6QGCN3KP
openwall.com / lists/oss-security/2022/03/25/1
Mailing ListPatchThird Party Advisory