CVE-2008-5822: n/a vulnerability

CVE-2008-5822: Memory leak in Libxul, as used in Mozilla Firefox 3.0.5 and other products, allows remote attackers to caus...

Memory leak in Libxul, as used in Mozilla Firefox 3.0.5 and other products, allows remote attackers to cause a denial of service (memory consumption and browser hang) via a long CLASS attribute in an HR element in an HTML document.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 11:04 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old browser denial-of-service issue. A crafted HTML page could make affected Libxul-based Mozilla products, including Firefox 3.0.5, consume memory and hang. The sources do not indicate code execution or data theft. Exposure is likely limited to legacy Mozilla/Libxul deployments, especially Firefox 3.0.5, that render untrusted HTML. The source bundle does not enumerate all affected products or fixed versions. Prioritize if legacy Mozilla-based browsers or embedded Libxul applications remain in use. For modern supported browsers, urgency is likely low, but unsupported legacy systems should be removed or isolated. Mitigation focus: Inventory any legacy Firefox 3.0.5 or Libxul-based applications.; Check Mozilla or product vendor guidance for fixed versions.; Retire or isolate unsupported browser/runtime deployments..

Prepared: Jun 28, 2026, 11:41 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: Jan 2, 2009, 19:00 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

2Source 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
libxul-class-dos(47758)CVE reference · vdb-entry, x_refsource_XF

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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