CVE-2005-2265

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 68%
CISA-KEV: Not listedEPSS: 68%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

Firefox before 1.0.5, Mozilla before 1.7.9, and Netscape 8.0.2 and 7.2 allows remote attackers to cause a denial of service (access violation and crash), and possibly execute arbitrary code, by calling InstallVersion.compareTo with an object instead of a string.

CVSS v3
—
EG Score
0.0(none)
EPSS
99.2%
KEV
Not listed

Published

July 13, 2005

Last Modified

April 16, 2026

References (44)

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumozilla-firefox () @ hoary2026-05-31ubuntu
ubuntumozilla-mailnews () @ warty2026-05-31ubuntu
ubuntumozilla-thunderbird-enigmail () @ warty2026-05-31ubuntu
ubuntumozilla-firefox-locale-pl () @ warty2026-05-31ubuntu
redhatdevhelp-0:0.9.2-2.4.62005-07-22redhat
redhatfirefox-0:1.0.6-1.4.12005-07-21redhat
redhatthunderbird-0:1.0.6-1.4.12005-07-21redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(7)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 22:24 UTCEPSS rescore
  2. 2026-07-13 06:07 UTCEPSS rescore
  3. 2026-07-13 06:07 UTCEPSS rescore
  4. 2026-07-11 08:22 UTCEPSS rescore
  5. 2026-07-11 08:22 UTCEPSS rescore
  6. 2026-07-01 15:01 UTCEPSS rescore
  7. 2026-06-28 04:52 UTCEPSS rescore
  8. 2026-06-25 13:46 UTCEPSS rescore
  9. 2026-06-24 14:01 UTCEPSS rescore
  10. 2026-06-23 21:29 UTCEPSS rescore
  11. 2026-06-21 01:56 UTCEPSS rescore
  12. 2026-06-19 19:22 UTCEPSS rescore
  13. 2026-06-17 17:49 UTCEPSS rescore
  14. 2026-06-17 17:49 UTCEPSS rescore
  15. 2026-06-16 17:49 UTCEPSS rescore
  16. 2026-06-16 17:49 UTCEPSS rescore
  17. 2026-06-15 17:44 UTCEPSS rescore
  18. 2026-06-12 23:08 UTCEPSS rescore
  19. 2026-06-10 22:14 UTCEPSS rescore
  20. 2026-06-10 13:17 UTCEPSS rescore
  21. 2026-06-06 13:44 UTCEPSS rescore
  22. 2026-06-06 13:44 UTCEPSS rescore
  23. 2026-06-05 22:43 UTCEPSS rescore
  24. 2026-06-05 22:43 UTCEPSS rescore
  25. 2026-06-05 06:07 UTCEPSS rescore
Show 21 more
  1. 2026-06-05 06:07 UTCEPSS rescore
  2. 2026-06-02 20:10 UTCEPSS rescore
  3. 2026-06-02 20:10 UTCEPSS rescore
  4. 2026-05-31 12:39 UTCEG score recompute
  5. 2026-05-31 12:39 UTCVendor advisory
  6. 2026-05-31 12:39 UTCGHSA enrichment
  7. 2026-05-31 00:13 UTCEPSS rescore
  8. 2026-05-31 00:13 UTCEPSS rescore
  9. 2026-05-28 13:42 UTCEPSS rescore
  10. 2026-05-28 13:42 UTCEPSS rescore
  11. 2026-05-28 13:42 UTCEPSS rescore
  12. 2026-05-27 13:37 UTCEPSS rescore
  13. 2026-05-26 13:41 UTCEPSS rescore
  14. 2026-05-26 13:41 UTCEPSS rescore
  15. 2026-05-24 16:42 UTCEPSS rescore
  16. 2026-05-22 21:15 UTCEPSS rescore
  17. 2026-05-20 22:36 UTCEPSS rescore
  18. 2026-05-20 22:36 UTCEPSS rescore
  19. 2026-05-20 11:20 UTCEPSS rescore
  20. 2026-05-20 11:20 UTCEPSS rescore
  21. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-16306✓ verified
    First seen Sep 20, 2010

    Mozilla Suite/Firefox - InstallVersion->compareTo() Code Execution (Metasploit)

    Open source ↗
  • Exploit-DBEDB-9947✓ verified
    First seen Jul 13, 2005

    Mozilla Suite/Firefox < 1.0.5 - compareTo Code Execution (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/browser/mozilla_compareto✓ verified
    First seen Jul 13, 2005

    Mozilla Suite/Firefox compareTo() Code Execution

    Open source ↗

Frequently asked(4)

What is CVE-2005-2265?
CVE-2005-2265 is a none vulnerability published on July 13, 2005. Firefox before 1.0.5, Mozilla before 1.7.9, and Netscape 8.0.2 and 7.2 allows remote attackers to cause a denial of service (access violation and crash), and possibly execute arbitrary code, by calling InstallVersion.compareTo with an object instead of a string.
When was CVE-2005-2265 disclosed?
CVE-2005-2265 was first published in the National Vulnerability Database on July 13, 2005, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2005-2265 actively exploited?
CVE-2005-2265 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2005-2265?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2005-2265, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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