CVE-2012-0441: n/a vulnerability

CVE-2012-0441: The ASN.1 decoder in the QuickDER decoder in Mozilla Network Security Services (NSS) before 3.13.4, as used...

The ASN.1 decoder in the QuickDER decoder in Mozilla Network Security Services (NSS) before 3.13.4, as used in Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0 through 12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10, allows remote attackers to cause a denial of service (application crash) via a zero-length item, as demonstrated by (1) a zero-length basic constraint or (2) a zero-length field in an OCSP response.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 18:23 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mozilla NSS parsing flaw that can crash affected applications when they process specific malformed certificate or OCSP data. The documented impact is denial of service, not data theft or code execution. Business urgency depends on whether legacy Firefox, Thunderbird, SeaMonkey, or NSS-based software remains in use. Exposure is most likely in legacy desktop systems, old Linux distributions, or embedded products still shipping NSS before 3.13.4 or the listed Mozilla application versions. Modern supported browsers and mail clients are unlikely to be affected if patched normally. Prioritize remediation where old NSS-backed clients process untrusted web, email, certificate, or OCSP data. For fully supported, patched fleets, this is a legacy hygiene issue rather than an emergency. Mitigation focus: Upgrade NSS to 3.13.4 or later where vendor-supported packages exist.; Update affected Mozilla products to versions fixed by Mozilla or distribution advisories.; Retire unsupported Firefox, Thunderbird, SeaMonkey, or NSS-dependent builds..

Prepared: Jun 24, 2026, 12:34 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: Jun 5, 2012, 23:00 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
oval:org.mitre.oval:def:16701CVE reference · vdb-entry, signature
https://bugzilla.mozilla.org/show_bug.cgi?id=715073CVE 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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