CVE-2007-2162

CVE-2007-2162 is a high-severity vulnerability in Gnu Iceweasel with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

(1) Mozilla Firefox 2.0.0.3 and (2) GNU IceWeasel 2.0.0.3 allow remote attackers to cause a denial of service (browser crash or system hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.

Frequently asked questions

What is CVE-2007-2162?
(1) Mozilla Firefox 2.0.0.3 and (2) GNU IceWeasel 2.0.0.3 allow remote attackers to cause a denial of service (browser crash or system hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.
How severe is CVE-2007-2162?
CVE-2007-2162 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2007-2162 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2162?
CVE-2007-2162 primarily affects Gnu Iceweasel. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-2162?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2007-2162 published?
CVE-2007-2162 was published on 2007-04-22 and last updated on 2026-06-16.

References

Affected products (2)