CVE-2010-1766: n/a vulnerability

CVE-2010-1766: Off-by-one error in the WebSocketHandshake::readServerHandshake function in websockets/WebSocketHandshake.c...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 01:35 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old WebKit WebSocket parsing flaw. A malicious WebSocket server could send an overly long invalid upgrade header and crash or corrupt memory in vulnerable WebKit-based clients. The bundle does not identify modern affected products, so urgency depends on whether legacy WebKit or Qt components remain in use. Exposure is most plausible in legacy WebKit-based browsers, embedded WebKit runtimes, or Qt packages built before the WebKit r56380 fix. The provided affected-product metadata is incomplete, so inventory and vendor package mapping are required. Treat as a legacy technology exposure issue. It is not KEV-listed in the provided bundle, but vulnerable WebKit components can crash when handling malicious WebSocket responses. Prioritize finding and removing old embedded WebKit/Qt dependencies. Mitigation focus: Inventory WebKit, WebCore, and Qt WebKit components in supported and embedded software.; Apply vendor fixes from relevant Linux distribution or product advisories.; Confirm embedded WebKit builds include WebKit changeset r56380 or later..

Prepared: Jun 28, 2026, 02:01 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: Jul 22, 2010, 01:00 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
https://bugzilla.redhat.com/show_bug.cgi?id=596494CVE reference · x_refsource_CONFIRM
https://bugs.webkit.org/show_bug.cgi?id=36339CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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