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CVE-2016-7069

22
FAUCET Score

CVE-2016-7069 describes a vulnerability in dnsdist versions prior to 1.2.0, specifically impacting how it handles EDNS0 OPT records when processing responses from backends, particularly when EDNS Client Subnet is enabled. On 32-bit systems, faulty pointer arithmetic during the removal of these records can lead to undefined behavior and a crash. With a CVSS v3 score of 7.5 (High), this network-exploitable vulnerability requires no user interaction and can result in a denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.0CPE matchmatch criteria
cpe:2.3:a:powerdns:dnsdist:*:*:x86:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.58%
Probability of exploitation in next 30 days
EPSS Percentile
90.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0458 is in the 84th percentile among its peer group of 51,485 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

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
dnsdist.org / security-advisories/powerdns-advisory-for-dnsdist-2017-01.html
PatchVendor Advisory
securityfocus.com / bid/100509
Third Party AdvisoryVDB Entry