The nsDocShell::OnRedirectStateChange function in docshell/base/nsDocShell.cpp in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, and SeaMonkey before 2.0.6, allows remote attackers to spoof the SSL security status of a document via vectors involving multiple requests, a redirect, and the history.back and history.forward JavaScript functions.
CVE-2010-2751
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 2.6 — v2 rates that LOW (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:H/Au:N/C:N/I:P/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 1.9% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 2.6LOWNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 2.6(low)
- EG Risk
- 17(Track)EG Risk 17/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity26% × 45%Exploitation2% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 2%
- EPSS %ILE
- 78%
- KEV
- Not listed
Published
July 30, 2010
Last Modified
April 29, 2026
References (6)
- cve@mitrehttp://www.mozilla.org/security/announce/2010/mfsa2010-45.html
- cve@mitrehttps://bugzilla.mozilla.org/show_bug.cgi?id=536466
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11688
- af854a3a-2127-422b-91ae-364da2661108http://www.mozilla.org/security/announce/2010/mfsa2010-45.html
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=536466
- af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11688
Vendor Advisories for CVE-2010-2751(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | xulrunner-1.9.2 (1.9.2.7+build2+nobinonly-0ubuntu0.10.04.1) @ lucid | 2026-05-29 | ubuntu |
| ubuntu | xulrunner-1.9.2 (1.9.2.7+build2+nobinonly-0ubuntu0.9.10.2) @ karmic | 2026-05-29 | ubuntu |
| redhat | xulrunner-0:1.9.2.7-2.el5 | 2010-07-21 | redhat |
| redhat | seamonkey-0:1.0.9-60.el4 | 2010-07-21 | redhat |
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.
Affected Packages
(1 across 1 ecosystem)
Debian:5.0(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| xulrunner | 1.9.0.10-1 ... 1.9.0.9-1 (22 versions) | 1.9.0.19-3 | — |
Additional Vendor Advisories
(3)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 2× in last 7d / 13× 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.
Showing the most recent 100 of 117 total refreshes for this CVE.
- 2026-08-26 14:40 UTCEPSS rescore
- 2026-08-25 13:43 UTCEPSS rescore
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- 2026-07-26 13:41 UTCEG score recompute▲ 2.60
- 2026-07-25 14:12 UTCEPSS rescore
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- 2026-07-23 01:02 UTCEG score recompute
- 2026-07-23 00:39 UTCEG score recompute
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- 2026-07-22 14:03 UTCEPSS rescore
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- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-29 10:47 UTCEG score recompute
- 2026-05-29 10:47 UTCVendor advisory
- 2026-05-29 10:47 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
Frequently asked(4)
What is CVE-2010-2751?
When was CVE-2010-2751 disclosed?
Is CVE-2010-2751 actively exploited?
How do I remediate CVE-2010-2751?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2010-2751
Is Your Infrastructure Affected by CVE-2010-2751?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.