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CVE-2010-1766

Off-by-one error in the WebSocketHandshake::readServerHandshake function in websockets...

7.5 High

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.

Exploit likelihood

2.25%Down 0.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

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.

Record
CVE-2010-1766
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-189
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2010-1766
Updated
2026-11-02
EUVDEUVD-2010-1786 No score

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.

Record
EUVD-2010-1786
Updated
2026-11-03
GitHub AdvisoriesGHSA-6mww-pvfg-4qx6 No score

Off-by-one error in the WebSocketHandshake::readServerHandshake function in websockets...

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.

Record
GHSA-6mww-pvfg-4qx6
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2010-1766 is a high vulnerability (CVSS 7.5) in Digia Qt, published July 22, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.25%, the 82nd percentile. No source names a fixed version.

References

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