CVE-2010-3774
The NS_SecurityCompareURIs function in netwerk/base/public/nsNetUtil.h in Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, and SeaMonkey before 2.0.11, does not properly handle (1) about:neterror and (2) about:certerror pages, which allows remote…
Does this matter?
Lower severity and a low EPSS score (1.64%). Track it; it rarely justifies an emergency change on its own.
Description
The NS_SecurityCompareURIs function in netwerk/base/public/nsNetUtil.h in Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, and SeaMonkey before 2.0.11, does not properly handle (1) about:neterror and (2) about:certerror pages, which allows remote attackers to spoof the location bar via a crafted web site.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
- EPSS
- 1.64% probability · 76th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mozilla/firefox · mozilla/seamonkey
- Source
- cve@mitre.org
EPSS 1.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052022.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052032.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052502.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052504.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00002.html
- http://secunia.com/advisories/42716
- http://secunia.com/advisories/42818
- http://support.avaya.com/css/P8/documents/100124650
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:251
- http://www.mozilla.org/security/announce/2010/mfsa2010-83.htmlPatch, Vendor Advisory
- http://www.redhat.com/support/errata/RHSA-2010-0966.html
- http://www.securitytracker.com/id?1024850
- http://www.ubuntu.com/usn/USN-1019-1
- http://www.vupen.com/english/advisories/2011/0030
- https://bugzilla.mozilla.org/show_bug.cgi?id=602780Patch
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12512
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052022.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052032.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052502.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052504.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00002.html
- http://secunia.com/advisories/42716
- http://secunia.com/advisories/42818
- http://support.avaya.com/css/P8/documents/100124650
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:251
- http://www.mozilla.org/security/announce/2010/mfsa2010-83.htmlPatch, Vendor Advisory
- http://www.redhat.com/support/errata/RHSA-2010-0966.html
- http://www.securitytracker.com/id?1024850
- http://www.ubuntu.com/usn/USN-1019-1
- http://www.vupen.com/english/advisories/2011/0030
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.