CVE-2011-3670: n/a vulnerability

CVE-2011-3670: Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMo...

Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain sensitive information by making XMLHttpRequest calls through a proxy and reading the error messages.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 23:46 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mozilla client vulnerability affecting Firefox, Thunderbird, and SeaMonkey versions released before early 2012 fixes. A remote attacker could use proxy-related error handling to expose sensitive information to a page or message context. Modern supported versions should not be affected. Exposure is most likely in legacy desktops or servers still running Firefox before 3.6.26, Firefox 4.x through 6.0, Thunderbird before 3.1.18 or 5.0 through 6.0, or SeaMonkey before 2.4. Treat as a legacy hygiene issue unless affected clients remain in production. Prioritize removal or upgrade of unsupported Mozilla software, especially on systems using web proxies or handling sensitive internal data. Mitigation focus: Upgrade affected Mozilla products to fixed or currently supported versions.; Use Debian, SUSE, Mandriva, or Mozilla advisories for distribution-specific package guidance.; Remove unsupported Firefox, Thunderbird, and SeaMonkey installations from managed systems..

Prepared: Jun 27, 2026, 17:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2011-3670 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 1, 2012, 16:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.mozilla.org/show_bug.cgi?id=504014CVE reference · x_refsource_CONFIRM
oval:org.mitre.oval:def:14814CVE reference · vdb-entry, signature

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.