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CVE-2012-5109

17
FAUCET Score

CVE-2012-5109 describes an out-of-bounds read vulnerability in the International Components for Unicode (ICU) functionality of Google Chrome versions prior to 22.0.1229.92. This flaw allows remote attackers to trigger a denial of service by crafting specific regular expressions. The vulnerability has a CVSS score of 5.0, indicating a medium severity, with a low attack complexity and no authentication required, leading to a potential impact of partial availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 22.0.1229.91CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
22.0.1229.0CPE matchmatch criteria
cpe:2.3:a:google:chrome:22.0.1229.0:*:*:*:*:*:*:*
22.0.1229.1CPE matchmatch criteria
cpe:2.3:a:google:chrome:22.0.1229.1:*:*:*:*:*:*:*
22.0.1229.2CPE matchmatch criteria
cpe:2.3:a:google:chrome:22.0.1229.2:*:*:*:*:*:*:*
22.0.1229.3CPE matchmatch criteria
cpe:2.3:a:google:chrome:22.0.1229.3:*:*:*:*:*:*:*

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
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 44th percentile among its peer group of 23,705 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

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: icu

Vendor Advisories (1)

redhatCVE-2012-5109Low

icu: DoS (out-of bounds read) via vectors related to regular expression

Oct 8, 2012

References

googlechromereleases.blogspot.com / 2012/10/stable-channel-update.html
code.google.com / p/chromium/issues/detail
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15774