High 7.5Published Dec 21, 2010

CVE-2010-4577The CSSParser::parseFontFaceSrc function in WebCore/css/CSSParser.cpp in WebKit, as used in Google Chrome before 8.0.552.224, Chrome OS before 8.0.552.343, webkitgtk before 1.2.6, and other products…

Updated under an hour ago (Nov 2, 2026, 7:40 AM ET)

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It affects google chrome and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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The CSSParser::parseFontFaceSrc function in WebCore/css/CSSParser.cpp in WebKit, as used in Google Chrome before 8.0.552.224, Chrome OS before 8.0.552.343, webkitgtk before 1.2.6, and other products does not properly parse Cascading Style Sheets (CSS) token sequences, which allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted local font, related to "Type Confusion."

CVSS: 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-125, CWE-843
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

google chrome google:chrome	before 8.0.552.224	NVD
webkitgtk webkitgtk webkitgtk:webkitgtk	before 1.2.6	NVD
google chrome_os google:chrome_os	before 8.0.552.343	NVD
fedoraproject fedora fedoraproject:fedora	13	NVD
debian debian_linux debian:debian_linux	6.0; 7.0	NVD

References

References

http://code.google.com/p/chromium/issues/detail?id=63866	exploit, issue-tracking, mailing-list
http://googlechromereleases.blogspot.com/2010/12/stable-beta-channel-updates_13.html	release-notes
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052906.html	mailing-list, third-party-advisory
http://secunia.com/advisories/42648	broken-link, third-party-advisory
http://secunia.com/advisories/43086	broken-link, third-party-advisory
http://trac.webkit.org/changeset/72685	mailing-list, patch
http://trac.webkit.org/changeset/72685/trunk/WebCore/css/CSSParser.cpp	mailing-list, patch
http://www.debian.org/security/2011/dsa-2188	mailing-list, third-party-advisory
http://www.gentoo.org/security/en/glsa/glsa-201012-01.xml	third-party-advisory
http://www.redhat.com/support/errata/RHSA-2011-0177.html	broken-link, third-party-advisory
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.