CVE-2021-21121
9.6
CRITICAL · CVSS 3.1 · EPSS 6.2% (pctl 93)
In your normal cycle
Critical by CVSS (9.6), but no sign of active exploitation.
Description
Use after free in Omnibox in Google Chrome on Linux prior to 88.0.4324.96 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.
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 | 6.19% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-416 |
| 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/1161143
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21121
- https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html
- https://crbug.com/1161143
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21121
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