CVE-2026-85043
CRITICAL 9.1 ALL-YEARSIncomplete cleanup in Network in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to bypass system access restrictions via crafted network traffic. (Chromium security severity: High)
Severe if exploited (CVSS 9.1), but no confirmed exploitation. Patch on a normal cadence.
Exploitation likelihood
0.4%chance of exploitation in 30 days · 38th percentile
Impact if exploited
9.1CVSS 3.1 · CRITICAL · ADP
- ConfidentialityHigh
- IntegrityNone
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Weakness (CWE)
- CWE-459: Incomplete cleanup
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
References and research data (JSON)
Vendor product assessments
All currently supported Red Hat products · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
Red Hat · CVE-2026-85043 · Updated 2026-09-03T20:06:57+00:00
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Chrome | < 152.0.7977.82 |
All CVSS metrics
- CRITICAL 9.1 v3.1 · ADP Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CRITICAL 9.1 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
References
Advisories
- https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html CVE record · Chrome · Updated 2026-09-03T19:26:12.990Z
NVD · CVE-2026-85043 · Updated 2026-09-08T16:27:14.397 - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85043.json Red Hat · CVE-2026-85043 · Updated 2026-09-03T20:06:57+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-70704 EUVD · EUVD-2026-70704
Technical & other
- https://issues.chromium.org/issues/533502257 CVE record · Chrome · Updated 2026-09-03T19:26:12.990Z
NVD · CVE-2026-85043 · Updated 2026-09-08T16:27:14.397 - https://access.redhat.com/security/cve/CVE-2026-85043 Red Hat · CVE-2026-85043 · Updated 2026-09-03T20:06:57+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-85043 Red Hat · CVE-2026-85043 · Updated 2026-09-03T20:06:57+00:00
Sources: NVD · CVE.org · All sources and attribution · EPSS