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CVE-2012-3158

28
FAUCET Score

CVE-2012-3158 describes an unspecified vulnerability in the Protocol component of Oracle MySQL Server versions 5.1.64 and earlier, and 5.5.26 and earlier, impacting products from vendors like Canonical, Debian, MariaDB, Oracle, and Red Hat. This vulnerability carries a CVSS score of 7.5, indicating high severity with potential for remote attackers to compromise confidentiality, integrity, and availability with low attack complexity. While community discussion is notably high, there is no evidence of active exploitation, nor are there known public exploits in Metasploit, Nuclei, or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.1.0, <= 5.1.64CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 5.5.0, <= 5.5.26CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 5.1.0, < 5.1.66CPE matchmatch criteria
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
>= 5.5.0, < 5.5.27CPE matchmatch criteria
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.50%
Probability of exploitation in next 30 days
EPSS Percentile
90.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0450 is in the 83rd 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

Patch Available

Vendor Patches (3)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mysql-0:5.1.66-1.el6_3
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: mysql

Vendor Advisories (1)

redhatCVE-2012-3158Important

mysql: unspecified vulnerability related to the MySQL Protocol (CPU Oct 2012)

Oct 16, 2012

References

rhn.redhat.com / errata/RHSA-2012-1462.html
Third Party Advisory
secunia.com / advisories/51177
Not Applicable
secunia.com / advisories/51309
Not Applicable
secunia.com / advisories/53372
Not Applicable
security.gentoo.org / glsa/glsa-201308-06.xml
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/79382
Third Party AdvisoryVDB Entry
debian.org / security/2012/dsa-2581
Third Party Advisory
mandriva.com / security/advisories
Broken Link
mandriva.com / security/advisories
Broken Link
oracle.com / technetwork/topics/security/cpuoct2012-1515893.html
PatchVendor Advisory
ubuntu.com / usn/USN-1621-1
Third Party Advisory