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Fencer Vulns
medium 4.3

CVE-2007-2871 json

Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, and SeaMonkey 1.0.9 and 1.1.2, allows remote attackers to spoof or hide the b…

published 2007-06-01 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-2863

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, and SeaMonkey 1.0.9 and 1.1.2, allows remote attackers to spoof or hide the browser chrome, such as the location bar, by placing XUL popups outside of the browser's content pane. NOTE: this issue can be leveraged for phishing and other attacks.

Patch / fix

  • seamonkey RHEL 2.1 1.0.9-0.1.el2
  • seamonkey RHEL 3 1.0.9-0.1.el3
  • seamonkey RHEL 4 1.0.9-2.el4
  • devhelp RHEL 4 0.10-0.8.el4
  • seamonkey-nss RHEL 2.1 1.0.9-0.1.el2
  • seamonkey-nss RHEL 3 1.0.9-0.1.el3
  • seamonkey-chat RHEL 2.1 1.0.9-0.1.el2
  • seamonkey-chat RHEL 3 1.0.9-0.1.el3

red hat advisories RHSA-2007:0402RHSA-2007:0401RHSA-2007:0400

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-2871 updated

Multiple Firefox flaws (CVE-2007-1562, CVE-2007-2867, CVE-2007-2868, CVE-2007-2869, CVE-2007-2870, CVE-2007-2871)

  • Red Hat Desktop version 3 seamonkey 1.0.9-0.1.el3, seamonkey-nss 1.0.9-0.1.el3, seamonkey-chat 1.0.9-0.1.el3, seamonkey-mail 1.0.9-0.1.el3, seamonkey-nspr 1.0.9-0.1.el3, seamonkey-js-debugger 1.0.9-0.1.el3, +1 more
    fixed: vendor fix RHSA-2007:0402
  • Red Hat Enterprise Linux (v. 5 server) yelp 2.16.0-15.el5, devhelp 0.12-11.el5, firefox 1.5.0.12-1.el5
    fixed: vendor fix RHSA-2007:0400
  • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 seamonkey 1.0.9-0.1.el2, seamonkey-nss 1.0.9-0.1.el2, seamonkey-chat 1.0.9-0.1.el2, seamonkey-mail 1.0.9-0.1.el2, seamonkey-nspr 1.0.9-0.1.el2, seamonkey-js-debugger 1.0.9-0.1.el2, +1 more Red Hat Enterprise Linux AS version 3 seamonkey 1.0.9-0.1.el3, seamonkey-nss 1.0.9-0.1.el3, seamonkey-chat 1.0.9-0.1.el3, seamonkey-mail 1.0.9-0.1.el3, seamonkey-nspr 1.0.9-0.1.el3, seamonkey-js-debugger 1.0.9-0.1.el3, +1 more Red Hat Enterprise Linux AS version 4 devhelp 0.10-0.8.el4, seamonkey 1.0.9-2.el4, firefox 1.5.0.12-0.1.el4, seamonkey-chat 1.0.9-2.el4, seamonkey-mail 1.0.9-2.el4, thunderbird 1.5.0.12-0.1.el4, +2 more
    fixed: vendor fix RHSA-2007:0402
  • Red Hat Enterprise Linux Desktop (v. 5 client) yelp 2.16.0-15.el5, devhelp 0.12-11.el5, firefox 1.5.0.12-1.el5, thunderbird 1.5.0.12-1.el5
    fixed: vendor fix RHSA-2007:0400
  • Red Hat Enterprise Linux Desktop version 4 devhelp 0.10-0.8.el4, seamonkey 1.0.9-2.el4, firefox 1.5.0.12-0.1.el4, seamonkey-chat 1.0.9-2.el4, seamonkey-mail 1.0.9-2.el4, thunderbird 1.5.0.12-0.1.el4, +2 more
    fixed: vendor fix RHSA-2007:0402
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) devhelp 0.12-11.el5
    fixed: vendor fix RHSA-2007:0400
  • Red Hat Enterprise Linux ES version 2.1 seamonkey 1.0.9-0.1.el2, seamonkey-nss 1.0.9-0.1.el2, seamonkey-chat 1.0.9-0.1.el2, seamonkey-mail 1.0.9-0.1.el2, seamonkey-nspr 1.0.9-0.1.el2, seamonkey-js-debugger 1.0.9-0.1.el2, +1 more Red Hat Enterprise Linux ES version 3 seamonkey 1.0.9-0.1.el3, seamonkey-nss 1.0.9-0.1.el3, seamonkey-chat 1.0.9-0.1.el3, seamonkey-mail 1.0.9-0.1.el3, seamonkey-nspr 1.0.9-0.1.el3, seamonkey-js-debugger 1.0.9-0.1.el3, +1 more Red Hat Enterprise Linux ES version 4 devhelp 0.10-0.8.el4, seamonkey 1.0.9-2.el4, firefox 1.5.0.12-0.1.el4, seamonkey-chat 1.0.9-2.el4, seamonkey-mail 1.0.9-2.el4, thunderbird 1.5.0.12-0.1.el4, +2 more
    fixed: vendor fix RHSA-2007:0402
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 1.5.0.12-1.el5
    fixed: vendor fix RHSA-2007:0401
show 1 more
  • Red Hat Enterprise Linux WS version 2.1 seamonkey 1.0.9-0.1.el2, seamonkey-nss 1.0.9-0.1.el2, seamonkey-chat 1.0.9-0.1.el2, seamonkey-mail 1.0.9-0.1.el2, seamonkey-nspr 1.0.9-0.1.el2, seamonkey-js-debugger 1.0.9-0.1.el2, +1 more Red Hat Enterprise Linux WS version 3 seamonkey 1.0.9-0.1.el3, seamonkey-nss 1.0.9-0.1.el3, seamonkey-chat 1.0.9-0.1.el3, seamonkey-mail 1.0.9-0.1.el3, seamonkey-nspr 1.0.9-0.1.el3, seamonkey-js-debugger 1.0.9-0.1.el3, +1 more Red Hat Enterprise Linux WS version 4 devhelp 0.10-0.8.el4, seamonkey 1.0.9-2.el4, firefox 1.5.0.12-0.1.el4, seamonkey-chat 1.0.9-2.el4, seamonkey-mail 1.0.9-2.el4, thunderbird 1.5.0.12-0.1.el4, +2 more Red Hat Linux Advanced Workstation 2.1 seamonkey 1.0.9-0.1.el2, seamonkey-nss 1.0.9-0.1.el2, seamonkey-chat 1.0.9-0.1.el2, seamonkey-mail 1.0.9-0.1.el2, seamonkey-nspr 1.0.9-0.1.el2, seamonkey-js-debugger 1.0.9-0.1.el2, +1 more
    fixed: vendor fix RHSA-2007:0402

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.49% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.