CVE Details
CVE-2026-87491
Google Chromium V8 Out of Bounds Write Vulnerability
Published: 2026-09-09
CVSS: 8.8 HIGH
Product: Google Chromium V8
Due Date: 2026-09-23
Google Chromium V8 contains an out of bounds write 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.
GitHub PoC
Warning: GitHub PoC repositories are unverified. Some may be fake
or contain malware. Use caution and review code before running anything.
No GitHub PoC data.
FIRST EPSS
EPSS estimates the probability of exploitation in the next 30 days. Higher values indicate higher likelihood of real-world exploitation.
No EPSS data.
Timeline
CVE Stalker
KEV
MITRE
GitHub
FIRST (EPSS)
MITRE
CVSS
SSVC
References
Show Raw Data
| Key | Remaining Key | Value |
|---|---|---|
| dataType | CVE_RECORD | |
| dataVersion | 5.2 | |
| cveMetadata > | cveId | CVE-2026-87491 |
| cveMetadata > | assignerOrgId | ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28 |
| cveMetadata > | state | PUBLISHED |
| cveMetadata > | assignerShortName | Chrome |
| cveMetadata > | dateReserved | 2026-09-08T22:38:36.226Z |
| cveMetadata > | datePublished | 2026-09-09T00:09:38.419Z |
| cveMetadata > | dateUpdated | 2026-09-09T10:29:23.288Z |
| containers > | cna > affected > 0 > vendor | |
| containers > | cna > affected > 0 > product | Chrome |
| containers > | cna > affected > 0 > versions > 0 > version | 153.0.8010.36 |
| containers > | cna > affected > 0 > versions > 0 > status | affected |
| containers > | cna > affected > 0 > versions > 0 > lessThan | 153.0.8010.36 |
| containers > | cna > affected > 0 > versions > 0 > versionType | custom |
| containers > | cna > descriptions > 0 > lang | en |
| containers > | cna > descriptions > 0 > value | Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium) |
| containers > | cna > problemTypes > 0 > descriptions > 0 > lang | en |
| containers > | cna > problemTypes > 0 > descriptions > 0 > description | Out of bounds write |
| containers > | cna > problemTypes > 0 > descriptions > 0 > cweId | CWE-787 |
| containers > | cna > providerMetadata > orgId | ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28 |
| containers > | cna > providerMetadata > shortName | Chrome |
| containers > | cna > providerMetadata > dateUpdated | 2026-09-09T00:09:38.419Z |
| containers > | cna > references > 0 > url | https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html |
| containers > | cna > references > 1 > url | https://issues.chromium.org/issues/543557673 |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > scope | UNCHANGED |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > version | 3.1 |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > baseScore | 8.8 |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > attackVector | NETWORK |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > baseSeverity | HIGH |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > vectorString | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > integrityImpact | HIGH |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > userInteraction | REQUIRED |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > attackComplexity | LOW |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > availabilityImpact | HIGH |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > privilegesRequired | NONE |
| containers > | adp > 0 > metrics > 0 > cvssV3_1 > confidentialityImpact | HIGH |
| containers > | adp > 0 > metrics > 1 > other > type | ssvc |
| containers > | adp > 0 > metrics > 1 > other > content > timestamp | 2026-09-09T10:29:12.810434Z |
| containers > | adp > 0 > metrics > 1 > other > content > id | CVE-2026-87491 |
| containers > | adp > 0 > metrics > 1 > other > content > options > 0 > Exploitation | none |
| containers > | adp > 0 > metrics > 1 > other > content > options > 1 > Automatable | no |
| containers > | adp > 0 > metrics > 1 > other > content > options > 2 > Technical Impact | total |
| containers > | adp > 0 > metrics > 1 > other > content > role | CISA Coordinator |
| containers > | adp > 0 > metrics > 1 > other > content > version | 2.0.3 |
| containers > | adp > 0 > title | CISA ADP Vulnrichment |
| containers > | adp > 0 > providerMetadata > orgId | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| containers > | adp > 0 > providerMetadata > shortName | CISA-ADP |
| containers > | adp > 0 > providerMetadata > dateUpdated | 2026-09-09T10:29:23.288Z |