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CVE-2008-5510
The CSS parser 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…
- 5.0MediumCVSS base score
- 2.2%Exploitation in 30 daysEPSS · top 17% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The CSS parser 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 ignores the '\0' escaped null character, which might allow remote attackers to bypass protection mechanisms such as sanitization routines.
Timeline
ID reserved
By redhat
- 5 days later
· 5 days later
Published
- 16 years later
· 16 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 2.2% · top 17% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Affected products
n/a
- affected n/a
References
28
- 32882 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1021425 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 33408 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:9662 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 33205 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=228856 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2008:1036 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- ADV-2009-0977 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- USN-690-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://www.mozilla.org/security/announce/2008/mfsa2008-67.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-701-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 33231 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- MDVSA-2008:245 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- USN-690-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- MDVSA-2009:012 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 33203 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-1707 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 33216 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 256408 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
- 33204 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 33184 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 258748 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
- MDVSA-2008:244 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 33188 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 33523 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 35080 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- mozilla-cssparser-security-bypass(47415) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 34501 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2008-5487 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2008-5510)Record last updated .