CVE-2013-6673: n/a vulnerability

CVE-2013-6673: Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2....

Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 do not recognize a user's removal of trust from an EV X.509 certificate, which makes it easier for man-in-the-middle attackers to spoof SSL servers in opportunistic circumstances via a valid certificate that is unacceptable to the user.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 17:46 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects old Mozilla products that failed to honor a user’s decision to distrust an EV certificate. In limited man-in-the-middle conditions, an attacker with a valid but user-rejected certificate could make an SSL server appear more trustworthy than it should. Exposure is most likely in legacy desktops, servers, or packaged Linux distributions still running the affected Mozilla versions. Modern supported Mozilla releases should not be assumed affected from the provided evidence. Treat this as a legacy hygiene issue unless affected Mozilla versions are still present. It can undermine certificate trust decisions, but the source bundle shows no KEV listing or confirmed active exploitation. Mitigation focus: Upgrade Firefox to 26.0 or later, or a supported current release.; Upgrade Firefox ESR to 24.2 or later, or a supported ESR release.; Upgrade Thunderbird to 24.2 or later..

Prepared: Jun 14, 2026, 15:13 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

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 11, 2013, 15:00 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
GLSA-201504-01CVE reference · vendor-advisory, x_refsource_GENTOO
https://bugzilla.mozilla.org/show_bug.cgi?id=917380CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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