CVE-2010-1987
Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service ...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2010-1987- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2010-1987- Updated
- 2026-11-02
EUVDEUVD-2010-2006 No score
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.
- Record
EUVD-2010-2006- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9gqx-f57m-x5j2 No score
Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service ...
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.
- Record
GHSA-9gqx-f57m-x5j2- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2010-1987 is a medium vulnerability (CVSS 5.0) in Mozilla Firefox, published May 20, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.52%, the 74th percentile. No source names a fixed version.
References
exchange.xforce.ibmcloud.com/vulnerabilities/58762
osvdb.org/64790
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12013
exploit-db.com/exploits/12678
x90c.org/advisories/firefox_3.6.3_crash_advisory.txt
securityfocus.com/archive/1/511329/100/0/threaded
nvd.nist.gov/vuln/detail/CVE-2010-1987
github.com/advisories/GHSA-9gqx-f57m-x5j2