CVE-2010-4577

The CSSParser::parseFontFaceSrc function in WebCore/css/CSSParser.cpp in WebKit, as used in...

7.5 HighFix available

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."

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

2.21%Down 1.6 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2010-4577
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-125, CWE-843
Updated: 2026-11-02

CVE List 7.5

Record: CVE-2010-4577
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-125, CWE-843
Updated: 2026-11-02

EUVDEUVD-2010-4543 7.5

Record: EUVD-2010-4543
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9j34-5qgm-c4jh 7.5

The CSSParser::parseFontFaceSrc function in WebCore/css/CSSParser.cpp in WebKit, as used in...

Record: GHSA-9j34-5qgm-c4jh
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`webkit` Debian:6.0	before 1.2.7-0+squeeze1, plus listed versions 1.2.6-2	1.2.7-0+squeeze1
`webkitgtk` Red Hat:enterprise_linux:6::client	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-debuginfo` Red Hat:enterprise_linux:6::client	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-devel` Red Hat:enterprise_linux:6::client	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-doc` Red Hat:enterprise_linux:6::client	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk` Red Hat:enterprise_linux:6::computenode	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-debuginfo` Red Hat:enterprise_linux:6::computenode	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-devel` Red Hat:enterprise_linux:6::computenode	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-doc` Red Hat:enterprise_linux:6::computenode	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk` Red Hat:enterprise_linux:6::server	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0

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Affected packages
Package	Affected	Fixed
`webkitgtk-debuginfo` Red Hat:enterprise_linux:6::server	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-devel` Red Hat:enterprise_linux:6::server	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-doc` Red Hat:enterprise_linux:6::server	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk` Red Hat:enterprise_linux:6::workstation	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-debuginfo` Red Hat:enterprise_linux:6::workstation	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-devel` Red Hat:enterprise_linux:6::workstation	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0
`webkitgtk-doc` Red Hat:enterprise_linux:6::workstation	before 0:1.2.6-2.el6_0	0:1.2.6-2.el6_0

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2010-4577 is a high vulnerability (CVSS 7.5) in Google Chrome, published December 22, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.21%, the 82nd percentile. Fixed in webkit 1.2.7-0+squeeze1.

References

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