CVE-2010-1987: n/a vulnerability

CVE-2010-1987: Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service (memory consum...

Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service (memory consumption, out-of-bounds read, and application crash) via JavaScript code that appends long strings to the content of a P element, and performs certain other string concatenation and substring operations, related to the DoubleWideCharMappedString class in USP10.dll and the gfxWindowsFontGroup::GetUnderlineOffset function in xul.dll, a different vulnerability than CVE-2009-1571.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 02:17 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Firefox crash issue on Windows XP SP3. A malicious webpage could make Firefox 3.6.3 consume memory and crash, causing denial of service for the user session. The source bundle does not show code execution or current active exploitation. Exposure is most plausible on legacy Windows XP SP3 endpoints still running Mozilla Firefox 3.6.3. Modern Firefox versions or non-XP platforms are not identified as affected in the provided sources. Treat as a legacy-system cleanup item, not an emergency internet-wide issue. Prioritize removal if XP or Firefox 3.6.3 remains in production, because unsupported browsing software increases cumulative business risk. Mitigation focus: Inventory and retire Firefox 3.6.3 on Windows XP SP3.; Check Mozilla or vendor guidance for any historical fixed version.; Move legacy browsing workloads to supported browsers and operating systems..

Prepared: Jun 28, 2026, 02:49 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: May 20, 2010, 17:00 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
firefox-pelement-dos(58762)CVE reference · vdb-entry, x_refsource_XF
oval:org.mitre.oval:def:12013CVE 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

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