CVE-2010-0166: mozilla firefox
Vulnerability summary
CVE-2010-0166 is a medium (CVSS 5.1) vulnerability in mozilla firefox. EPSS estimates a 6.89% chance of exploitation in the next 30 days, higher than 94% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 25-03-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
The gfxTextRun::SanitizeGlyphRuns function in gfx/thebes/src/gfxFont.cpp in the browser engine in Mozilla Firefox 3.6 before 3.6.2 on Mac OS X, when the Core Text API is used, does not properly perform certain deletions, which allows remote attackers to cause a denial of service (memory corruption and application crash) and possibly execute arbitrary code via an HTML document containing invisible Unicode characters, as demonstrated by the U+FEFF, U+FFF9, U+FFFA, and U+FFFB characters.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
6.89%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.89% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundMozilla Firefox 3.6 - 'gfxTextRun::SanitizeGlyphRuns()' Remote Memory Corruption
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Mozilla1 product
- firefox3.6
1 vendor · 1 product
References
6 links- bugzilla.mozilla.org/show_bug.cgi?id=538065X Refsource CONFIRM
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14182VDB EntrySignatureX Refsource OVAL