CVE-2009-2479 EXPLOIT
7.8
HIGH · CVSS 2.0 · EPSS 12.1% (pctl 96)
Patch early
A public exploit exists.
Description
Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.
Scoring
| CVSS | 7.8 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
| EPSS | 12.09% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2009-07-16 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| mozilla | firefox |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Mozilla Firefox 3.5 - Unicode Remote Buffer Overflow (PoC) | 2009-07-15 |
References
- http://blog.mozilla.com/security/2009/07/19/milw0rm-9158-stack-overflow-crash-not-exploitable-cve-2009-2479/
- http://osvdb.org/55931
- http://websecurity.com.ua/3338/
- http://www.exploit-db.com/exploits/9158
- http://www.securityfocus.com/archive/1/505092/100/0/threaded
- http://www.securityfocus.com/bid/35707
- http://www.securitytracker.com/id?1022580
- https://bugzilla.mozilla.org/show_bug.cgi?id=504342
- https://bugzilla.mozilla.org/show_bug.cgi?id=504343
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51729
- https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00909.html
- http://blog.mozilla.com/security/2009/07/19/milw0rm-9158-stack-overflow-crash-not-exploitable-cve-2009-2479/
- http://osvdb.org/55931
- http://websecurity.com.ua/3338/
- http://www.exploit-db.com/exploits/9158
- http://www.securityfocus.com/archive/1/505092/100/0/threaded
- http://www.securityfocus.com/bid/35707
- http://www.securitytracker.com/id?1022580
- https://bugzilla.mozilla.org/show_bug.cgi?id=504342
- https://bugzilla.mozilla.org/show_bug.cgi?id=504343
→ the Explorer · watch your stack · NVD