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CVE-2010-3774

19
FAUCET Score

CVE-2010-3774 describes a vulnerability in Mozilla Firefox and SeaMonkey where the NS_SecurityCompareURIs function improperly handles about:neterror and about:certerror pages. This allows remote attackers to spoof the location bar through a crafted website. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity leading to partial integrity impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*
3.6.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.2:*:*:*:*:*:*:*
3.6.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.3:*:*:*:*:*:*:*
3.6.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.4:*:*:*:*:*:*:*
3.6.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.64%
Probability of exploitation in next 30 days
EPSS Percentile
73.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0163 is in the 50th percentile among its peer group of 19,958 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (9)

mozillapatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.6.13-3.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.6.13-2.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.2.13-3.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:3.6.13-2.el6_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:1.9.2.13-3.el6_0
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 4.8Fixed in: firefox
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 5.5Fixed in: firefox
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 6.0Fixed in: firefox

Vendor Advisories (1)

redhatCVE-2010-3774Moderate

Mozilla location bar SSL spoofing using network error page (MFSA 2010-83)

Dec 9, 2010

References

lists.fedoraproject.org / pipermail/package-announce/2010-December/052022.html
lists.fedoraproject.org / pipermail/package-announce/2010-December/052032.html
lists.fedoraproject.org / pipermail/package-announce/2010-December/052502.html
lists.fedoraproject.org / pipermail/package-announce/2010-December/052504.html
lists.opensuse.org / opensuse-security-announce/2011-01/msg00002.html
bugzilla.mozilla.org / show_bug.cgi
Patch
secunia.com / advisories/42716
secunia.com / advisories/42818
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12512
support.avaya.com / css/P8/documents/100124650
mandriva.com / security/advisories
mozilla.org / security/announce/2010/mfsa2010-83.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2010-0966.html
securitytracker.com / id
ubuntu.com / usn/USN-1019-1
vupen.com / english/advisories/2011/0030