CVE-2026-78892
HIGH 7.1 ALL-YEARSIncorrect authorization in Chromoting in Google Chrome on on Windows prior to 152.0.7977.65 allowed a local attacker to bypass system access restrictions via a local program. (Chromium security severity: Medium)
Severe if exploited (CVSS 7.1), but no confirmed exploitation. Patch on a normal cadence.
Exploitation likelihood
0.1%chance of exploitation in 30 days · 1st percentile
Impact if exploited
7.1CVSS 3.1 · HIGH · ADP
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityNone
What an attacker needs
- ⚠Access: Requires local access to the host
- ⚠Privileges: Requires a low-privilege account
- ✓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.
Search for new PoCs
Search GitHub now — results may be empty or unverified.
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-863: Incorrect authorization
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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-2026-78892 · Updated 2026-09-11T19:34:00+00:00
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Chrome | < 152.0.7977.65 |
All CVSS metrics
- HIGH 7.1 v3.1 · ADP Primary
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - HIGH 7.1 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
Advisories
- https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html CVE record · Chrome · Updated 2026-08-25T20:10:37.009Z
NVD · CVE-2026-78892 · Updated 2026-08-31T18:57:12.673
Red Hat · CVE-2026-78892 · Updated 2026-09-11T19:34:00+00:00 - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-78892.json Red Hat · CVE-2026-78892 · Updated 2026-09-11T19:34:00+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-65956 EUVD · EUVD-2026-65956
Technical & other
- https://issues.chromium.org/issues/518053893 CVE record · Chrome · Updated 2026-08-25T20:10:37.009Z
NVD · CVE-2026-78892 · Updated 2026-08-31T18:57:12.673
Red Hat · CVE-2026-78892 · Updated 2026-09-11T19:34:00+00:00 - https://access.redhat.com/security/cve/CVE-2026-78892 Red Hat · CVE-2026-78892 · Updated 2026-09-11T19:34:00+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-78892 Red Hat · CVE-2026-78892 · Updated 2026-09-11T19:34:00+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-78892 Red Hat · CVE-2026-78892 · Updated 2026-09-11T19:34:00+00:00
Sources: NVD · CVE.org · All sources and attribution · EPSS