CVE-2010-1766
HIGH · CVSS 7.5EPSS 2.3%EU EUVD
Off-by-one error in the WebSocketHandshake::readServerHandshake function in websockets/WebSocketHandshake.cpp in WebCore in WebKit before r56380, as used in Qt and other products, allows remote websockets servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via an upgrade header that is long and invalid.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-189
- EPSS score
- 2.3% (83th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2010-1786)
- Published
- July 22, 2010
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2010-1786 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- digia / qt
- webkit / webkit
References
- http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044023.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044031.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
- http://secunia.com/advisories/40557(Vendor Advisory)
- http://secunia.com/advisories/41856(Vendor Advisory)
- http://secunia.com/advisories/43068(Vendor Advisory)
- http://trac.webkit.org/changeset/56380
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:039
- http://www.ubuntu.com/usn/USN-1006-1
- http://www.vupen.com/english/advisories/2010/1801(Vendor Advisory)
- http://www.vupen.com/english/advisories/2010/2722
- http://www.vupen.com/english/advisories/2011/0212
- http://www.vupen.com/english/advisories/2011/0552
- https://bugs.webkit.org/show_bug.cgi?id=36339
- https://bugzilla.redhat.com/show_bug.cgi?id=596494
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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