Remote code execution in Google Chrome, a ubiquitous enterprise browser; widespread impact warrants org-wide visibility and rapid remediation.
CVE-2026-121184
Out-of-bounds read in Chrome media may allow sandboxed remote code execution.
Is CVE-2026-121184 being exploited?
Not confirmed. CVE-2026-121184 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 0.36% probability of exploitation in the next 30 days.
How severe is CVE-2026-121184?
CVE-2026-121184 is rated High with a CVSS score of 8.8. 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-2026-121184?
Yes. A fix has been recorded for CVE-2026-121184. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-121184 affect?
CVE-2026-121184 affects Google Chrome (desktop) prior to 157.0.8103.38. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-121184?
Update Chrome to 157.0.8103.38 or later immediately and enforce rollout.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can execute arbitrary code inside Chrome's sandbox via crafted HTML/media, enabling browser compromise and potential follow-on attacks.
Immediate action required
- affected< 157.0.8103.38
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.
cisa ssvc
- exploitation
- none
- automatable
- no
- technical impact
- total
Assessed by CISA 4 Nov 2026 (SSVC 2.0.3).
timeline
- 3 Nov 2026Published
- 4 Nov 2026CISA SSVC assessment: exploitation none · same day later
- 5 Nov 2026CVE record last updated · 1 day later
- 5 Nov 2026Analysed by vulneraibility.com · same day later
- Linkchromereleases.googleblog.com /2026/11/stable-channel-update-for-desktop.html
- Linkissues.chromium.org /issues/565681451
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.