SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2004-1639

Mozilla Firefox before 0.10, Mozilla 5.0, and Gecko 20040913 allows remote attackers to cause a denial of service (application crash or memory consumption) via a large binary file with a .html extension.

MEDIUM 5.0EPSS 1.74%

Does this matter?

Lower severity and a low EPSS score (1.74%). Track it; it rarely justifies an emergency change on its own.

Description

Mozilla Firefox before 0.10, Mozilla 5.0, and Gecko 20040913 allows remote attackers to cause a denial of service (application crash or memory consumption) via a large binary file with a .html extension.

CVSS 2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
1.74% probability · 78th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.74%26 October 202626 October 2026

EPSS 1.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.