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Fencer Intel
critical 9.3

CVE-2013-0787 json

Use-after-free vulnerability in the nsEditor::IsPreformatted function in editor/libeditor/base/nsEditor.cpp in Mozilla Firefox before 19.0.…

published 2013-03-11 13 y ago modified 2026-06-16 4 mo ago also EUVD-2013-0798

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.4%
EPSS 6.4% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Use-after-free vulnerability in the nsEditor::IsPreformatted function in editor/libeditor/base/nsEditor.cpp in Mozilla Firefox before 19.0.2, Firefox ESR 17.x before 17.0.4, Thunderbird before 17.0.4, Thunderbird ESR 17.x before 17.0.4, and SeaMonkey before 2.16.1 allows remote attackers to execute arbitrary code via vectors involving an execCommand call.

Patch / fix

  • xulrunner RHEL 5 17.0.3-2.el5_9
  • xulrunner RHEL 6 17.0.3-2.el6_4
  • thunderbird RHEL 5 PRODUCTIVITY 17.0.3-2.el5_9
  • thunderbird RHEL 6 17.0.3-2.el6_4

red hat advisories RHSA-2013:0614RHSA-2013:0627

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

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-2013-0787 updated cvss 6.8

Mozilla: Use-after-free in HTML Editor (MFSA 2013-29)

  • Red Hat Enterprise Linux 5 firefox
    affected: no fix available
  • Red Hat Enterprise Linux (v. 5 server) xulrunner 17.0.3-2.el5_9 Red Hat Enterprise Linux Desktop (v. 6) xulrunner 17.0.3-2.el6_4, thunderbird 17.0.3-2.el6_4 Red Hat Enterprise Linux Desktop Optional (v. 6) xulrunner 17.0.3-2.el6_4 Red Hat Enterprise Linux HPC Node Optional (v. 6) xulrunner 17.0.3-2.el6_4 Red Hat Enterprise Linux Server (v. 6) xulrunner 17.0.3-2.el6_4 Red Hat Enterprise Linux Server Optional (v. 6) xulrunner 17.0.3-2.el6_4, thunderbird 17.0.3-2.el6_4
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) xulrunner 17.0.3-2.el6_4, thunderbird 17.0.3-2.el6_4 Red Hat Enterprise Linux Workstation Optional (v. 6) xulrunner 17.0.3-2.el6_4
    fixed: vendor fix RHSA-2013:0614
  • Red Hat RHEL Optional Productivity Applications (v. 5 server) thunderbird 17.0.3-2.el5_9
    fixed: vendor fix RHSA-2013:0627

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

6.40% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel 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.