Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Out of bounds read in WebCodecs in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Out-of-bounds read in WebCodecs component of Google Chrome prior to version 146.0.7680.178 allows remote attackers to read arbitrary memory contents via specially crafted HTML pages. The vulnerability affects all Chrome versions below the patched release and requires only HTML delivery (no authentication); exploitation could disclose sensitive data from the browser process memory, though the Chromium project assessed this as Medium severity.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must visit a crafted HTML page in Google Chrome versions prior to 146.0.7680.178. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | While a CVSS score and vector are not provided in the input data, several risk signals are available for assessment. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a malicious HTML page containing specially formatted WebCodecs input that triggers an out-of-bounds read. When a victim visits the page in a vulnerable version of Chrome, the JavaScript or embedded media triggers the memory read flaw, allowing the attacker's script to infer or directly extract sensitive data from the Chrome process memory (e.g., cached passwords, session tokens, or cross-site data). … |
| Remediation | Vendor-released patch: Google Chrome 146.0.7680.178 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Vendor StatusVendor
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye (security), bullseye | vulnerable | 120.0.6099.224-1~deb11u1 | - |
| bookworm | vulnerable | 143.0.7499.169-1~deb12u1 | - |
| bookworm (security) | vulnerable | 146.0.7680.164-1~deb12u1 | - |
| trixie | vulnerable | 145.0.7632.159-1~deb13u1 | - |
| trixie (security) | vulnerable | 146.0.7680.164-1~deb13u1 | - |
| forky | vulnerable | 146.0.7680.153-1 | - |
| sid | fixed | 146.0.7680.177-1 | - |
| bullseye | fixed | (unfixed) | end-of-life |
| (unstable) | fixed | 146.0.7680.177-1 | - |
SUSE
Severity: HighShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-17812