CVE-2005-0592

Heap-based buffer overflow in the UTF8ToNewUnicode function for Firefox before 1.0.1 and Mozilla...

7.5 High

Heap-based buffer overflow in the UTF8ToNewUnicode function for Firefox before 1.0.1 and Mozilla before 1.7.6 might allow remote attackers to cause a denial of service (crash) or execute arbitrary code via invalid sequences in a UTF8 encoded string that result in a zero length value.

Exploit likelihood

3.86%Down 3.7 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2005-0592
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2005-0592
Updated: 2026-11-02

EUVDEUVD-2005-0593 No score

Record: EUVD-2005-0593
Updated: 2026-11-03

GitHub AdvisoriesGHSA-3fwv-8g5j-79jx No score

Heap-based buffer overflow in the UTF8ToNewUnicode function for Firefox before 1.0.1 and Mozilla...

Record: GHSA-3fwv-8g5j-79jx
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`firefox` Red Hat:enterprise_linux:4::as From an advisory covering 16 CVEs	before 0:1.0.1-1.4.3	0:1.0.1-1.4.3
`firefox` Red Hat:enterprise_linux:4::desktop From an advisory covering 16 CVEs	before 0:1.0.1-1.4.3	0:1.0.1-1.4.3
`firefox` Red Hat:enterprise_linux:4::es From an advisory covering 16 CVEs	before 0:1.0.1-1.4.3	0:1.0.1-1.4.3
`firefox` Red Hat:enterprise_linux:4::ws From an advisory covering 16 CVEs	before 0:1.0.1-1.4.3	0:1.0.1-1.4.3

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
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-2005-0592 is a high vulnerability (CVSS 7.5) in Mozilla Firefox, published February 28, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.86%, the 90th percentile. No source names a fixed version.

References

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