// For flags

CVE-2009-5017

Firefox: overlong UTF-8 seqence detection problem

Severity Score

4.3
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Mozilla Firefox before 3.6 Beta 3 does not properly handle overlong UTF-8 encoding, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted string, a different vulnerability than CVE-2010-1210.

Mozilla Firefox anterior v3.6 Beta 3 no maneja adecuadamente codificaciones UTF-8 demasiado largas, lo que hace facil para atacantes remotos superar los mecanísmos de protección de secuencias de comandos en sitios cruzados (XSS) a través de cadenas manipuladas, una vulnerabilidad diferente que CVE-2010-1210.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2010-11-12 CVE Reserved
  • 2010-11-12 CVE Published
  • 2024-09-16 CVE Updated
  • 2024-09-16 First Exploit
  • 2024-09-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
Firefox
Search vendor "Mozilla" for product "Firefox"
<= 3.6
Search vendor "Mozilla" for product "Firefox" and version " <= 3.6"
beta2
Affected
Mozilla
Search vendor "Mozilla"
Firefox
Search vendor "Mozilla" for product "Firefox"
3.6
Search vendor "Mozilla" for product "Firefox" and version "3.6"
beta1
Affected