CVE-2021-21132
9.6
CRITICAL · CVSS 3.1 · EPSS 23.4% (pctl 98)
Patch early
EPSS 23.4% — above the 10% action threshold.
Description
Inappropriate implementation in DevTools in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to potentially perform a sandbox escape via a crafted Chrome Extension.
Scoring
| CVSS | 9.6 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| EPSS | 23.41% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-1021 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-02-09 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| chrome | |
| microsoft | edge chromium |
References
- https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html
- https://crbug.com/1128206
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21132
- https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html
- https://crbug.com/1128206
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21132
→ the Explorer · watch your stack · NVD