CVE-2009-2535

Mozilla Firefox before 2.0.0.19 and 3.x before 3.0.5, SeaMonkey, and Thunderbird allow remote...

5.0 MediumPublic exploit

Mozilla Firefox before 2.0.0.19 and 3.x before 3.0.5, SeaMonkey, and Thunderbird allow remote attackers to cause a denial of service (memory consumption and application crash) via a large integer value for the length property of a Select object, a related issue to CVE-2009-1692.

Exploit likelihood

9.36%Up 8.0 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2009-2535
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-189
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-2535
Updated: 2026-11-02

EUVDEUVD-2009-2530 No score

Record: EUVD-2009-2530
Updated: 2026-11-03

GitHub AdvisoriesGHSA-75jf-fx6q-2qjm No score

Mozilla Firefox before 2.0.0.19 and 3.x before 3.0.5, SeaMonkey, and Thunderbird allow remote...

Record: GHSA-75jf-fx6q-2qjm
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Multiple Browsers - Denial of Service	2009-07-15

History

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

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

In short

CVE-2009-2535 is a medium vulnerability (CVSS 5.0) in Mozilla Firefox, published July 20, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 9.36%, the 95th percentile. No source names a fixed version.