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CVE-2010-4577

25
FAUCET Score

CVE-2010-4577 describes an out-of-bounds read vulnerability in the CSSParser::parseFontFaceSrc function within WebKit, affecting Google Chrome, Chrome OS, webkitgtk, and other products utilizing WebKit. This flaw, categorized as a type confusion issue, allows remote attackers to trigger a denial of service by providing a specially crafted local font via malformed CSS token sequences. With a CVSS score of 7.5 (HIGH), the vulnerability can be exploited remotely with low attack complexity, leading to a high impact on availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.0.552.224CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 1.2.6CPE matchmatch criteria
cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
< 8.0.552.343CPE matchmatch criteria
cpe:2.3:o:google:chrome_os:*:*:*:*:*:*:*:*
13CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:13:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.21%
Probability of exploitation in next 30 days
EPSS Percentile
80.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0221 is in the 66th 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

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 (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: webkitgtk-0:1.2.6-2.el6_0
View patch

Vendor Advisories (1)

redhatCVE-2010-4577Moderate

webkit: CSS Font Face Parsing Type Confusion Vulnerability

Dec 13, 2010

References

code.google.com / p/chromium/issues/detail
ExploitIssue TrackingMailing List
googlechromereleases.blogspot.com / 2010/12/stable-beta-channel-updates_13.html
Release Notes
lists.fedoraproject.org / pipermail/package-announce/2011-January/052906.html
Mailing ListThird Party Advisory
bugs.webkit.org / show_bug.cgi
Permissions Required
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/42648
Broken LinkThird Party Advisory
secunia.com / advisories/43086
Broken LinkThird Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13953
Broken LinkThird Party Advisory
trac.webkit.org / changeset/72685
Mailing ListPatch
trac.webkit.org / changeset/72685/trunk/WebCore/css/CSSParser.cpp
Mailing ListPatch
debian.org / security/2011/dsa-2188
Mailing ListThird Party Advisory
gentoo.org / security/en/glsa/glsa-201012-01.xml
Third Party Advisory
redhat.com / support/errata/RHSA-2011-0177.html
Broken LinkThird Party Advisory
securityfocus.com / bid/45722
Broken LinkThird Party AdvisoryVDB Entry
vupen.com / english/advisories/2011/0216
Broken LinkThird Party Advisory