CVSS base score: 8.8 (High) CISA · v3.1
Score assigned by CISA's Vulnrichment program; the vendor's CVE record did not include one.
Google Chromium V8 Type Confusion Vulnerability
Vendor: Google Product: Chromium V8
Google Chromium V8 contains a type confusion vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Each milestone comes from a different source, so gaps between them are gaps in what those sources publish, not evidence that nothing happened. EPSS history for this CVE holds 15 points from 2026-09-05, tracked daily from 2026-09-09; earlier points are weekly, which dates a spike to within a week. Peak probability 1.5% on 2026-09-15.
Check whether a specific version is affected →
What each source publishes about which product versions carry this vulnerability, kept as written rather than merged. Absence here means no source has published applicability data, not that nothing is affected.
| Date | Source | Article |
|---|---|---|
| 2026-09-23 | The Hacker News | Chinese Hackers Exploit Chrome-Windows Zero-Day Chain to Deploy CLEANGULP Malware |
| 2026-09-14 | Check Point Research | 14th September – Threat Intelligence Report |
| 2026-09-04 | The Hacker News | Google Releases Chrome Update to Patch Actively Exploited V8 Zero-Day |
Articles from monitored vendor research blogs and security news feeds that specifically mention this CVE. Coverage begins when feed monitoring started; earlier articles are not indexed.
Coverage across public collections only: Nuclei and OpenVAS NVT (scan);
Snort and Suricata ET Open (network); Sigma and YARA (host/SIEM);
Metasploit, Exploit-DB and public GitHub repositories (exploit). Absence
here means nothing public was found, not that detection is impossible.
GitHub PoC repositories are collected automatically by
PoC-in-GitHub (CC0) and are not vetted:
some are fakes and some are malware. Treat them as evidence that code was
published, not as code to run.
OpenVAS coverage derives from the Greenbone Community Feed, made available
under the Open Database License (ODbL) v1.0;
its individual Vulnerability Tests are licensed
GNU GPL v2.
Where the distribution has shipped a fix, and in which version. Green means the release has resolved it, amber that it is still open. Data from the Debian Security Tracker, used under Debian's MIT / GPLv2+ terms. Debian is upstream of several other distributions, so a fix here often precedes theirs.
| Source | Date | Record |
|---|---|---|
| CISA Vulnrichment | 2026-09-03 | source record → |
| CISA KEV | 2026-09-04 | source record → |
| Date | Advisory | Issuer |
|---|---|---|
| 2026-09-04 | CISA Adds One Known Exploited Vulnerability to Catalog | CISA |
No exploit-tool sightings recorded for this CVE.
Evidence tiers are explained on the About page — a merged Metasploit module is far stronger evidence than a distro package mention.
CVE.org record → NVD entry → CISA KEV catalog → FortiGuard Labs → Rapid7 AttackerKB →