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CVE-2012-5126

23
FAUCET Score

CVE-2012-5126 is a use-after-free vulnerability affecting Google Chrome versions prior to 23.0.1271.64, specifically related to how plug-in placeholders are handled. This flaw carries a CVSS score of 7.5, indicating a high severity, as it can be exploited remotely without authentication to cause a denial of service and potentially lead to other unspecified impacts. While there is no evidence of active exploitation, readily available exploit code, or inclusion in the KEV catalog, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 23.0.1271.62CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
23.0.1271.0CPE matchmatch criteria
cpe:2.3:a:google:chrome:23.0.1271.0:*:*:*:*:*:*:*
23.0.1271.1CPE matchmatch criteria
cpe:2.3:a:google:chrome:23.0.1271.1:*:*:*:*:*:*:*
23.0.1271.2CPE matchmatch criteria
cpe:2.3:a:google:chrome:23.0.1271.2:*:*:*:*:*:*:*
23.0.1271.3CPE matchmatch criteria
cpe:2.3:a:google:chrome:23.0.1271.3:*:*:*:*:*:*:*

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
1.39%
Probability of exploitation in next 30 days
EPSS Percentile
69.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0138 is in the 50th 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

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

googlechromereleases.blogspot.com / 2012/11/stable-channel-release-and-beta-channel.html
osvdb.org / 87082
code.google.com / p/chromium/issues/detail
exchange.xforce.ibmcloud.com / vulnerabilities/79873
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15891
securityfocus.com / bid/56413