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CVE-2009-2555

28
FAUCET Score

CVE-2009-2555 describes a heap-based buffer overflow in the Google V8 JavaScript engine (specifically src/jsregexp.cc) prior to version 1.1.10.14, impacting Google Chrome versions before 2.0.172.37. This critical vulnerability, with a CVSS score of 9.3, allows remote attackers to execute arbitrary code within the Chrome sandbox through a specially crafted JavaScript regular expression, requiring moderate attack complexity but no authentication. Despite its high severity and potential for complete compromise (C:C/I:C/A:C), there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0CPE matchmatch criteria
cpe:2.3:a:google:v8:*:*:*:*:*:*:*:*
<= 2.0.172.33CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
0.2.149.29CPE matchmatch criteria
cpe:2.3:a:google:chrome:0.2.149.29:*:*:*:*:*:*:*
0.2.149.30CPE matchmatch criteria
cpe:2.3:a:google:chrome:0.2.149.30:*:*:*:*:*:*:*
0.2.152.1CPE matchmatch criteria
cpe:2.3:a:google:chrome:0.2.152.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.43%
Probability of exploitation in next 30 days
EPSS Percentile
87.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0343 is in the 47th percentile among its peer group of 8,913 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

code.google.com / p/chromium/issues/detail
Vendor Advisory
codereview.chromium.org / 141042
codereview.chromium.org / 141042/diff/6/1004
googlechromereleases.blogspot.com / 2009/07/stable-beta-update-bug-fixes.html
Vendor Advisory
secunia.com / advisories/35844
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/51801
osvdb.org / 55939
securityfocus.com / bid/35722
vupen.com / english/advisories/2009/1924
Vendor Advisory