Is CVE-2007-5896 being actively exploited?

CVE-2007-5896 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2007-5896?

CVE-2007-5896 has a CVSS 2.0 base score of 7.1 (HIGH).

CVE-2007-5896

HIGH · CVSS 7.1EPSS 1.2%EU EUVD

Mozilla Firefox 2.0.0.9 allows remote attackers to cause a denial of service (CPU consumption and crash) via an iframe with Javascript that sets the document.location to contain a leading NULL byte (\x00) and a (1) res://, (2) about:config, or (3) file:/// URI.

Key facts

CVSS score: 7.1 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-399
EPSS score: 1.2% (68th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2007-5866)
Published: November 8, 2007
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2007-5866 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

mozilla / firefox

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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