Firefox 1.0 allows remote attackers to execute arbitrary code via plugins that load…
Priority LOW 33Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- 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 1.0 allows remote attackers to execute arbitrary code via plugins that load "privileged content" into frames, as demonstrated using certain XUL events when a user drags a scrollbar two times, aka "Firescrolling."
Why it matters now
EPSS 0.07322 94th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory
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 1 advisory
- RHSA-2005:176 Released 2005-03-01 · Red Hat rating Criticalfirefox security update
- Red Hat Enterprise Linux AS version 4 firefox-1.0.1-1.4.3, firefox-1.0.1-1.4.3.i386, firefox-1.0.1-1.4.3.ia64 +1
- Red Hat Enterprise Linux Desktop version 4 firefox-1.0.1-1.4.3, firefox-1.0.1-1.4.3.i386
- Red Hat Enterprise Linux ES version 4 firefox-1.0.1-1.4.3, firefox-1.0.1-1.4.3.i386, firefox-1.0.1-1.4.3.ia64
- Red Hat Enterprise Linux WS version 4 firefox-1.0.1-1.4.3, firefox-1.0.1-1.4.3.i386, firefox-1.0.1-1.4.3.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-2005:176 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2005:176 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2005:176 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2005:176 |
Timeline
- 2026-10-02 Threatist record created from CVE-2005-0527
- 2026-10-03 Alias added: GHSA-pf89-5576-c2q8
References
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-2005-0527 · CVE Program
- CVE-2005-0527 · NVD
- FIRST EPSS
- GHSA-pf89-5576-c2q8 · GitHub Advisory Database · CC BY 4.0
- CVE-2005-0527 · 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