CVE-2014-1538: n/a vulnerability

CVE-2014-1538: Use-after-free vulnerability in the nsTextEditRules::CreateMozBR function in Mozilla Firefox before 30.0, F...

Use-after-free vulnerability in the nsTextEditRules::CreateMozBR function in Mozilla Firefox before 30.0, Firefox ESR 24.x before 24.6, and Thunderbird before 24.6 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 09:42 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mozilla memory-safety flaw that could let a remote attacker crash Firefox or Thunderbird, or potentially run code, if a vulnerable client processed malicious content. The affected versions are Firefox before 30.0, Firefox ESR 24.x before 24.6, and Thunderbird before 24.6. Exposure is mainly legacy endpoints, virtual desktops, kiosks, or servers still running obsolete Firefox, Firefox ESR, Thunderbird, or vendor-packaged Mozilla builds from 2014-era distributions. Treat as high priority only if legacy Mozilla clients still exist. Modern supported versions should already be remediated, but unmanaged older endpoints can preserve meaningful code-execution risk. Mitigation focus: Upgrade Firefox to 30.0 or later where applicable.; Upgrade Firefox ESR 24.x to 24.6 or later.; Upgrade Thunderbird to 24.6 or later..

Prepared: Jun 14, 2026, 14:16 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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Execution behavior lookup

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 11, 2014, 10:00 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

4Source 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.redhat.com/show_bug.cgi?id=1107421CVE reference · x_refsource_CONFIRM
https://bugzilla.mozilla.org/show_bug.cgi?id=1005584CVE 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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