CVE-2026-17877
Local OS-level privilege escalation in Chrome Chromoting on Linux via malicious network traffic.
Is CVE-2026-17877 being exploited?
Not confirmed. CVE-2026-17877 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.10% probability of exploitation in the next 30 days.
How severe is CVE-2026-17877?
CVE-2026-17877 is rated High with a CVSS score of 8.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-17877?
Yes. A fix has been recorded for CVE-2026-17877. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-17877 affect?
CVE-2026-17877 affects Google Chrome (Linux) <151.0.7922.72, Chromium Chromoting component. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-17877?
Update Chrome on Linux to 151.0.7922.72+ and restrict untrusted local access until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local attacker can escalate to OS-level privileges on Linux by exploiting Chromoting via crafted network traffic.
Patch when possible
- affected< 151.0.7922.72
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.