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CVE-2018-18342
Execution of user supplied Javascript during object deserialization can update object length leading to an out of bounds write in V8 in…
- 8.8HighCVSS base score
- 2.7%Exploitation in 30 daysEPSS · top 14% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Execution of user supplied Javascript during object deserialization can update object length leading to an out of bounds write in V8 in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.
Timeline
ID reserved
By Chrome
- 57 days later
· 57 days later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
References
6
- https://crbug.com/906313 (opens in a new tab)x_refsource_MISCx_transferred
- https://chromereleases.googleblog.com/2018/12/stable-channel-update-for-desktop.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:3803 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-4352 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 106084 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201908-18 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-10073 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-18342)Record last updated .