Firefox before 1.0.5 and Mozilla before 1.7.9 does not properly clone base objects, which…
Priority MEDIUM 42Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Firefox before 1.0.5 and Mozilla before 1.7.9 does not properly clone base objects, which allows remote attackers to execute arbitrary code by navigating the prototype chain to reach a privileged object.
Why it matters now
EPSS 0.0596 93rd percentileScored 2026-11-07
Public exploit Yes 4 exploit referencesTagged by NVD
Fix Fixed Red Hat: 3 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
CPE configurations NVD · 38
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:* | 0.8 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:* | 0.9 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:0.9:rc:*:*:*:*:*:* | 0.9 rc | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:* | 0.9.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:0.9.2:*:*:*:*:*:*:* | 0.9.2 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:0.9.3:*:*:*:*:*:*:* | 0.9.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:0.10:*:*:*:*:*:*:* | 0.10 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:0.10.1:*:*:*:*:*:*:* | 0.10.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:1.0.1:*:*:*:*:*:*:* | 1.0.1 | Vulnerable | Mozilla |
- cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:* Versions 0.8 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:* Versions 0.9 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:0.9:rc:*:*:*:*:*:* Versions 0.9 rc Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:* Versions 0.9.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:0.9.2:*:*:*:*:*:*:* Versions 0.9.2 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:0.9.3:*:*:*:*:*:*:* Versions 0.9.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:0.10:*:*:*:*:*:*:* Versions 0.10 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:0.10.1:*:*:*:*:*:*:* Versions 0.10.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·Mozilla
Show 28 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:1.0.2:*:*:*:*:*:*:* | 1.0.2 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:1.0.3:*:*:*:*:*:*:* | 1.0.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:1.0.4:*:*:*:*:*:*:* | 1.0.4 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.4:*:*:*:*:*:*:* | 1.4 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.4:alpha:*:*:*:*:*:* | 1.4 alpha | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.4.1:*:*:*:*:*:*:* | 1.4.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.5:*:*:*:*:*:*:* | 1.5 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.5:alpha:*:*:*:*:*:* | 1.5 alpha | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.5:rc1:*:*:*:*:*:* | 1.5 rc1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.5:rc2:*:*:*:*:*:* | 1.5 rc2 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.5.1:*:*:*:*:*:*:* | 1.5.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.6:alpha:*:*:*:*:*:* | 1.6 alpha | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.6:beta:*:*:*:*:*:* | 1.6 beta | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7:*:*:*:*:*:*:* | 1.7 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7:alpha:*:*:*:*:*:* | 1.7 alpha | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7:beta:*:*:*:*:*:* | 1.7 beta | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7:rc1:*:*:*:*:*:* | 1.7 rc1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7:rc2:*:*:*:*:*:* | 1.7 rc2 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7:rc3:*:*:*:*:*:* | 1.7 rc3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7.1:*:*:*:*:*:*:* | 1.7.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7.2:*:*:*:*:*:*:* | 1.7.2 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7.3:*:*:*:*:*:*:* | 1.7.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7.5:*:*:*:*:*:*:* | 1.7.5 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7.6:*:*:*:*:*:*:* | 1.7.6 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7.7:*:*:*:*:*:*:* | 1.7.7 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:mozilla:1.7.8:*:*:*:*:*:*:* | 1.7.8 | Vulnerable | Mozilla |
- cpe:2.3:a:mozilla:firefox:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:1.0.3:*:*:*:*:*:*:* Versions 1.0.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:1.0.4:*:*:*:*:*:*:* Versions 1.0.4 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.4:*:*:*:*:*:*:* Versions 1.4 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.4:alpha:*:*:*:*:*:* Versions 1.4 alpha Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.5:*:*:*:*:*:*:* Versions 1.5 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.5:alpha:*:*:*:*:*:* Versions 1.5 alpha Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.5:rc1:*:*:*:*:*:* Versions 1.5 rc1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.5:rc2:*:*:*:*:*:* Versions 1.5 rc2 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.5.1:*:*:*:*:*:*:* Versions 1.5.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.6:alpha:*:*:*:*:*:* Versions 1.6 alpha Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.6:beta:*:*:*:*:*:* Versions 1.6 beta Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7:alpha:*:*:*:*:*:* Versions 1.7 alpha Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7:beta:*:*:*:*:*:* Versions 1.7 beta Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7:rc1:*:*:*:*:*:* Versions 1.7 rc1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7:rc2:*:*:*:*:*:* Versions 1.7 rc2 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7:rc3:*:*:*:*:*:* Versions 1.7 rc3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7.1:*:*:*:*:*:*:* Versions 1.7.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7.2:*:*:*:*:*:*:* Versions 1.7.2 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7.3:*:*:*:*:*:*:* Versions 1.7.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7.5:*:*:*:*:*:*:* Versions 1.7.5 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7.6:*:*:*:*:*:*:* Versions 1.7.6 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7.7:*:*:*:*:*:*:* Versions 1.7.7 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:mozilla:1.7.8:*:*:*:*:*:*:* Versions 1.7.8 Vulnerable ·Mozilla
Remediation
Red Hat 3 advisories
- RHSA-2005:587 Released 2005-07-22 · Red Hat rating Importantmozilla security update
- Red Hat Enterprise Linux AS version 4 devhelp-0.9.2-2.4.6, devhelp-0.9.2-2.4.6.i386, devhelp-0.9.2-2.4.6.ppc +3
- Red Hat Enterprise Linux Desktop version 4 devhelp-0.9.2-2.4.6, devhelp-0.9.2-2.4.6.i386, devhelp-devel-0.9.2-2.4.6 +1
- Red Hat Enterprise Linux ES version 4 devhelp-0.9.2-2.4.6, devhelp-0.9.2-2.4.6.i386, devhelp-devel-0.9.2-2.4.6 +1
- Red Hat Enterprise Linux WS version 4 devhelp-0.9.2-2.4.6, devhelp-0.9.2-2.4.6.i386, devhelp-devel-0.9.2-2.4.6 +1
- RHSA-2005:601 Released 2005-07-21 · Red Hat rating Importantthunderbird security update
- Red Hat Enterprise Linux AS version 4 thunderbird-1.0.6-1.4.1, thunderbird-1.0.6-1.4.1.i386, thunderbird-1.0.6-1.4.1.ia64 +1
- Red Hat Enterprise Linux Desktop version 4 thunderbird-1.0.6-1.4.1, thunderbird-1.0.6-1.4.1.i386
- Red Hat Enterprise Linux ES version 4 thunderbird-1.0.6-1.4.1, thunderbird-1.0.6-1.4.1.i386, thunderbird-1.0.6-1.4.1.ia64
- Red Hat Enterprise Linux WS version 4 thunderbird-1.0.6-1.4.1, thunderbird-1.0.6-1.4.1.i386, thunderbird-1.0.6-1.4.1.ia64
- RHSA-2005:586 Released 2005-07-21 · Red Hat rating Importantfirefox security update
- Red Hat Enterprise Linux AS version 4 firefox-1.0.6-1.4.1, firefox-1.0.6-1.4.1.i386, firefox-1.0.6-1.4.1.ia64 +1
- Red Hat Enterprise Linux Desktop version 4 firefox-1.0.6-1.4.1, firefox-1.0.6-1.4.1.i386
- Red Hat Enterprise Linux ES version 4 firefox-1.0.6-1.4.1, firefox-1.0.6-1.4.1.i386, firefox-1.0.6-1.4.1.ia64
- Red Hat Enterprise Linux WS version 4 firefox-1.0.6-1.4.1, firefox-1.0.6-1.4.1.i386, firefox-1.0.6-1.4.1.ia64
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2005:586, RHSA-2005:587, RHSA-2005:601 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2005:586, RHSA-2005:587, RHSA-2005:601 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2005:586, RHSA-2005:587, RHSA-2005:601 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2005:586, RHSA-2005:587, RHSA-2005:601 |
Timeline
- 2026-10-02 Threatist record created from CVE-2005-2270
- 2026-10-03 Alias added: GHSA-jgwp-9p3p-4h7j
References
Exploit 4
Advisory 10
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-2005-2270 · CVE Program
- CVE-2005-2270 · NVD
- FIRST EPSS
- GHSA-jgwp-9p3p-4h7j · GitHub Advisory Database · CC BY 4.0
- CVE-2005-2270 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences