CVE-2008-5021
9.3 · HIGHOverview
CVE-2008-5021 is a high-severity vulnerability affecting mozilla firefox. It was published on November 13, 2008 and has a CVSS 2.0 base score of 9.3 (HIGH).
This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
nsFrameManager in Firefox 3.x before 3.0.4, Firefox 2.x before 2.0.0.18, Thunderbird 2.x before 2.0.0.18, and SeaMonkey 1.x before 1.1.13 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by modifying properties of a file input element while it is still being initialized, then using the blur method to access uninitialized memory.
Remediation
Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| mozilla | firefox | >= 2.0, < 2.0.0.18 | Affected |
| mozilla | seamonkey | >= 1.0, < 1.1.13 | Affected |
| mozilla | thunderbird | >= 2.0, < 2.0.0.18 | Affected |
References
Frequently Asked Questions
What is CVE-2008-5021?
CVE-2008-5021 is a high-severity vulnerability affecting mozilla firefox. It was published on November 13, 2008 and has a CVSS 2.0 base score of 9.3 (HIGH).
How severe is CVE-2008-5021?
This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2008-5021?
Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2008-5021?
CyberStrike's AI-powered security agents can automatically detect CVE-2008-5021 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2008
View all →unp 1.0.12, and other versions before 1.0.14, does not properly escape file names, which might allow
March Networks DVR 3204 stores sensitive information under the web root with insufficient access con
Buffer overflow in RealPlayer 11 build 6.0.14.748 allows remote attackers to execute arbitrary code
Stack-based buffer overflow in the PAMBasicAuthenticator::PAMCallback function in OpenPegasus CIM ma
TUTOS 1.3 does not restrict access to php/admin/cmd.php, which allows remote attackers to execute ar
Heap-based buffer overflow in Foxit WAC Server 2.1.0.910, 2.0 Build 3503, and earlier allows remote
Double free vulnerability in the Widget Library (libxfcegui4) in Xfce before 4.4.2 might allow remot
Unspecified vulnerability in the Administrative Console in IBM WebSphere Application Server 6.1 befo
The telnet service in LevelOne WBR-3460 4-Port ADSL 2/2+ Wireless Modem Router with firmware 1.00.11
The Microsoft VFP_OLE_Server ActiveX control allows remote attackers to execute arbitrary code by in
SAP MaxDB 7.6.03 build 007 and earlier allows remote attackers to execute arbitrary commands via "&&
admin.php in UploadScript 1.0 does not check for the original password before making a change to a n