Integer overflow in Mozilla Firefox and Thunderbird before 1.5.0.4 allows remote…
Priority MEDIUM 50CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-94.
Summary
Integer overflow in Mozilla Firefox and Thunderbird before 1.5.0.4 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via "jsstr tagify," which leads to memory corruption.
Why it matters now
EPSS 0.07251 94th percentileScored 2026-11-07
Fix Fixed Red Hat: 5 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 5 advisories
- RHSA-2006:0594 Released 2006-08-28 · Red Hat rating Criticalseamonkey security update (was mozilla)
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
- Red Hat Linux Advanced Workstation 2.1
- RHSA-2006:0609 Released 2006-08-02 · Red Hat rating Criticalseamonkey security update
- Red Hat Enterprise Linux AS version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-0.10-0.2.el4.ppc +27
- Red Hat Enterprise Linux Desktop version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +13
- Red Hat Enterprise Linux ES version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +19
- Red Hat Enterprise Linux WS version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +19
- RHSA-2006:0611 Released 2006-07-29 · Red Hat rating Criticalthunderbird security update
- Red Hat Enterprise Linux AS version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64 +1
- Red Hat Enterprise Linux Desktop version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386
- Red Hat Enterprise Linux ES version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64
- Red Hat Enterprise Linux WS version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64
Show 2 more Red Hat advisories
- RHSA-2006:0610 Released 2006-07-28 · Red Hat rating Criticalfirefox security update
- Red Hat Enterprise Linux AS version 4 firefox-1.5.0.5-0.el4.1, firefox-1.5.0.5-0.el4.1.i386, firefox-1.5.0.5-0.el4.1.ia64 +1
- Red Hat Enterprise Linux Desktop version 4 firefox-1.5.0.5-0.el4.1, firefox-1.5.0.5-0.el4.1.i386
- Red Hat Enterprise Linux ES version 4 firefox-1.5.0.5-0.el4.1, firefox-1.5.0.5-0.el4.1.i386, firefox-1.5.0.5-0.el4.1.ia64
- Red Hat Enterprise Linux WS version 4 firefox-1.5.0.5-0.el4.1, firefox-1.5.0.5-0.el4.1.i386, firefox-1.5.0.5-0.el4.1.ia64
- RHSA-2006:0578 Released 2006-07-20 · Red Hat rating Criticalseamonkey security update (was mozilla)
- Red Hat Desktop version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-chat-1.0.2-0.1.0.EL3 +17
- Red Hat Enterprise Linux AS version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +37
- Red Hat Enterprise Linux ES version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +27
- Red Hat Enterprise Linux WS version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +27
Vendor assessments
Red Hat
Red Hat rating: Critical. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2006:0578 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2006:0594 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2006:0578 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0609, RHSA-2006:0610, RHSA-2006:0611 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0609, RHSA-2006:0610, RHSA-2006:0611 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2006:0594 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2006:0578 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0609, RHSA-2006:0610, RHSA-2006:0611 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2006:0594 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2006:0578 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0609, RHSA-2006:0610, RHSA-2006:0611 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2006:0594 |
Timeline
- 2026-10-02 Threatist record created from CVE-2006-2780
- 2026-10-03 Alias added: GHSA-phw8-gjhm-gpw8
References
Advisory 23
More Mozilla Firefox vulnerabilities
- TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
- TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
- TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2006-2780 · CVE Program
- CVE-2006-2780 · NVD
- FIRST EPSS
- GHSA-phw8-gjhm-gpw8 · GitHub Advisory Database · CC BY 4.0
- CVE-2006-2780 · Red Hat security data · CC BY 4.0
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