CVE-2018-6151
Bad cast in DevTools in Google Chrome on Win, Linux, Mac, Chrome OS prior to 66.0.3359.117 allowed an attacker who convinced a user to install a malicious extension to perform an out of bounds memory read via a crafted Chrome Extension.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Bad cast in DevTools in Google Chrome on Win, Linux, Mac, Chrome OS prior to 66.0.3359.117 allowed an attacker who convinced a user to install a malicious extension to perform an out of bounds memory read via a crafted Chrome Extension.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.21% probability · 68th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- google/chrome · debian/debian linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- chrome-cve-admin@google.com
EPSS 1.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/104887
- https://access.redhat.com/errata/RHSA-2018:2282
- https://chromereleases.googleblog.com/2018/04/stable-channel-update-for-desktop.html
- https://crbug.com/805905
- https://security.gentoo.org/glsa/201808-01
- https://www.debian.org/security/2018/dsa-4256
- http://www.securityfocus.com/bid/104887
- https://access.redhat.com/errata/RHSA-2018:2282
- https://chromereleases.googleblog.com/2018/04/stable-channel-update-for-desktop.html
- https://crbug.com/805905
- https://security.gentoo.org/glsa/201808-01
- https://www.debian.org/security/2018/dsa-4256
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.