CRITICAL
CVE-2008-5500
CWE-399Published: December 17, 2008· Updated: Jun 16, 2026
10.0
CVSS v3.1
Official Description
The layout engine in Mozilla Firefox 3.x before 3.0.5 and 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 allows remote attackers to cause a denial of service (crash) and possibly trigger memory corruption via vectors related to (1) a reachable assertion or (2) an integer overflow.
Technical Analysis
CVE-2008-5500 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11053
ADVISORYhttps://usn.ubuntu.com/690-1/
ADVISORYhttps://usn.ubuntu.com/690-3/
ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11053
ADVISORYhttps://usn.ubuntu.com/690-1/
ADVISORYhttps://usn.ubuntu.com/690-3/
All References (86)
→
http://secunia.com/advisories/33184Third Party Advisory
→
http://secunia.com/advisories/33188Third Party Advisory
→
http://secunia.com/advisories/33189Third Party Advisory
→
http://secunia.com/advisories/33203Third Party Advisory
→
http://secunia.com/advisories/33204Third Party Advisory
→
http://secunia.com/advisories/33205Third Party Advisory
→
http://secunia.com/advisories/33216Third Party Advisory
→
http://secunia.com/advisories/33231Third Party Advisory
→
http://secunia.com/advisories/33232Third Party Advisory
→
http://secunia.com/advisories/33408Third Party Advisory
→
http://secunia.com/advisories/33415Third Party Advisory
→
http://secunia.com/advisories/33421Third Party Advisory
→
http://secunia.com/advisories/33433Third Party Advisory
→
http://secunia.com/advisories/33434Third Party Advisory
→
http://secunia.com/advisories/33523Third Party Advisory
Quick Facts
CVE IDCVE-2008-5500
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessCWE-399
CISA KEVNo
Affected3 vendor(s)
PublishedDec 17, 2008
Related CVEs (CWE-399)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2008-5500 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.