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Google Chrome CVE-2026-17666

| EUVDEUVD-2026-50792 CRITICAL
Missing Cryptographic Step (CWE-325)
2026-07-30 Chrome GHSA-cqjx-gwfh-qhm2
9.1
CVSS 3.1 · Vendor: Chrome
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Severity by source

Vendor (Chrome) PRIMARY
9.1 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
vuln.today AI
7.4 HIGH

Requires an attacker-in-the-middle privileged network position, so AC:H rather than the vendor's AC:L; no auth or interaction needed (PR:N/UI:N); high confidentiality and integrity impact but no availability effect (A:N).

3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
4.0 AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
SUSE
CRITICAL
qualitative
Red Hat
8.1 HIGH
qualitative

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

4
Analysis Generated
Jul 30, 2026 - 20:00 vuln.today
Patch available
Jul 30, 2026 - 02:02 EUVD
CVE Published
Jul 30, 2026 - 00:18 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 30, 2026 - 00:18 cve.org
CRITICAL 9.1

DescriptionCVE.org

Cryptographic Flaw in Enterprise in Google Chrome prior to 151.0.7922.72 allowed an attacker in a privileged network position to bypass discretionary access control via malicious network traffic. (Chromium security severity: High)

AnalysisAI

Discretionary access control bypass in Google Chrome desktop before 151.0.7922.72 lets an adversary in a privileged network position defeat a cryptographic protection and manipulate protected traffic. The flaw stems from a cryptographic weakness (CWE-325) rather than a memory-safety bug, and Google rates the Chromium severity High. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Gain on-path network position (rogue AP/router)
Delivery
Intercept Chrome protected traffic
Exploit
Send malicious traffic exploiting missing crypto step
Execution
Bypass discretionary access control
Impact
Read or tamper protected data

Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold a privileged (on-path / adversary-in-the-middle) network position relative to the victim's Chrome traffic - e.g. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Signals are mixed and should be read together. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who controls a segment of the victim's network path - for example a rogue access point, a compromised router, or an ARP-spoofing foothold on a shared LAN - intercepts Chrome's protected traffic and exploits the missing cryptographic step to bypass discretionary access control, reading or altering data the control was meant to protect. No user interaction or credentials are required beyond the attacker's network position. …
Remediation Vendor-released patch: 151.0.7922.72 - upgrade Google Chrome to 151.0.7922.72 or later on all desktop platforms; Chrome typically auto-updates, so ensure the browser is fully closed and relaunched to apply the update, and use enterprise policies (Chrome Enterprise/managed update servers) to force the rollout across fleets. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all Chrome desktop deployments and document version numbers to baseline exposure. …

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Vendor StatusVendor

SUSE

Severity: Critical
Product Status
SUSE Package Hub 15 SP7 Fixed
openSUSE Leap 16.0 Fixed
SUSE Package Hub 15 SP7 Affected

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CVE-2026-17666 vulnerability details – vuln.today

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