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CVE-2010-0166

25
FAUCET Score

CVE-2010-0166 describes a memory corruption vulnerability in the gfxTextRun::SanitizeGlyphRuns function of Mozilla Firefox 3.6 (before 3.6.2) on Mac OS X when using the Core Text API. This flaw allows remote attackers to cause a denial of service (application crash) and potentially execute arbitrary code by embedding specific invisible Unicode characters in an HTML document. The vulnerability has a CVSS score of 5.1, indicating a network-based attack with high complexity, leading to partial confidentiality, integrity, and availability impacts. While not listed in CISA's KEV catalog, an exploit is available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
3.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.1MEDIUM

AV:N/AC:H/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.76%
Probability of exploitation in next 30 days
EPSS Percentile
93.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-33800 · Mar 24, 2010
This CVE's current EPSS score of 0.0676 is in the 92nd percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

References

bugzilla.mozilla.org / show_bug.cgi
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14182
mozilla.org / security/announce/2010/mfsa2010-11.html
Vendor Advisory
securityfocus.com / bid/38918
securityfocus.com / bid/38943
vupen.com / english/advisories/2010/0692