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CVE-2014-9906

32
FAUCET Score

CVE-2014-9906 is a critical use-after-free vulnerability affecting DBD::mysql versions prior to 4.029, including various Debian Linux distributions. This flaw allows attackers to trigger a denial of service or potentially execute arbitrary code by exploiting issues related to a lost server connection. With a CVSS score of 9.8 (CRITICAL), it poses a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there are no known public exploits in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered substantial community discussion, indicating awareness and potential interest among researchers.

Impacted Technologies

VendorProductVersion(s)CPE
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
<= 4.028CPE matchmatch criteria
cpe:2.3:a:dbd-mysql_project:dbd-mysql:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.03%
Probability of exploitation in next 30 days
EPSS Percentile
92.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0603 is in the 87th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-9906Low

perl-DBD-MySQL: Use after free in mysql_dr_error

Aug 1, 2014

References

cpansearch.perl.org / src/CAPTTOFU/DBD-mysql-4.029/ChangeLog
Release Notes
github.com / perl5-dbi/DBD-mysql/commit/a56ae87a4c1c1fead7d09c3653905841ccccf1cc
Issue TrackingPatch
rt.cpan.org / Public/Bug/Display.html
Issue Tracking
debian.org / security/2016/dsa-3635
Third Party Advisory
openwall.com / lists/oss-security/2016/07/27/5
Mailing ListVDB Entry
openwall.com / lists/oss-security/2016/07/27/6
Mailing ListVDB Entry
securityfocus.com / bid/92149