CVE-2021-21193
CVE-2021-21193
Vexday Risk Score
51Attention
SSVC decision (CISA)
Act
Exploitation + impact → act immediately
CVSS 8.8EPSS 9.9%KEV simPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
16 Mar 2021Published on NVD
03 Nov 2021Active exploitation (CISA KEV)
Recommendation: Patch as soon as possible — active exploitation confirmed.
In short
A memory error in Google Chrome's browser engine allows attackers to crash your browser or potentially run malicious code by visiting a specially designed webpage. This happens because the browser tries to use data that has already been freed from memory.
Technical detail
Use-after-free vulnerability in Blink rendering engine (CWE-416) allows remote code execution or heap corruption via malicious HTML. Requires user interaction (visiting a crafted webpage); affected versions prior to Chrome 89.0.4389.90. Attack vector is network-based with low attack complexity.
Summary generated and translated by AI from the official description.
Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Google · ChromeWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.htmlhttps://crbug.com/1186287https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/https://security.gentoo.org/glsa/202104-08https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21193https://www.debian.org/security/2021/dsa-4886