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CVE-2015-5311

54
FAUCET Score

CVE-2015-5311 describes a denial-of-service vulnerability affecting PowerDNS Authoritative Server versions 3.4.4 through 3.4.6. An unauthenticated remote attacker can exploit this flaw by sending crafted query packets, leading to an assertion failure and server crash. While the CVSS score is moderate at 5.0, indicating low attack complexity and no authentication required, the potential impact is limited to availability. There is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.4.4CPE matchmatch criteria
cpe:2.3:a:powerdns:authoritative:3.4.4:*:*:*:*:*:*:*
3.4.5CPE matchmatch criteria
cpe:2.3:a:powerdns:authoritative:3.4.5:*:*:*:*:*:*:*
3.4.6CPE matchmatch criteria
cpe:2.3:a:powerdns:authoritative:3.4.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
67.46%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.6746 is in the 99th percentile among its peer group of 23,690 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

lists.fedoraproject.org / pipermail/package-announce/2015-November/171865.html
lists.fedoraproject.org / pipermail/package-announce/2015-November/171976.html
lists.fedoraproject.org / pipermail/package-announce/2015-November/172193.html
doc.powerdns.com / md/security/powerdns-advisory-2015-03
PatchVendor Advisory
openwall.com / lists/oss-security/2015/11/09/3
securitytracker.com / id/1034098