Whenever there’s a new in-the-wild 0-day disclosed, I’m very interested in understanding the root cause of the bug. This allows us to then understand if it was fully fixed, look for variants, and brainstorm new mitigations. This blog is the story of a “zombie” Safari 0-day and how it came back from the dead to be disclosed as exploited in-the-wild in 2022. CVE-2022-22620 was initially fixed in 2013, reintroduced in 2016, and then disclosed as exploited in-the-wild in 2022. If you’re interested in the full root cause analysis for CVE-2022-22620, we’ve published it here.

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence that threat actors are actively exploiting the vulnerability listed in the table below. These types of vulnerabilities are a frequent attack vector for malicious cyber actors of all types and pose significant risk to the federal enterprise.

Apple a publié iOS 15.3.1 pour corriger la vulnérabilité CVE-2022-22620 de WebKit, qui serait activement exploitée par les cybercriminels. [version EN](https://www.kaspersky.com/blog/webkit-vulnerability-cve-2022-22620/43650/)

"Sorti hier, macOS 12.2.1 règle un problème de sécurité dans WebKit, le moteur de Safari, qui aurait pu permettre à une personne malintentionnée d'exécuter du code arbitraire en faisant simplement visiter à l'utilisateur une page web malveillante (CVE-2022-22620). Si votre Mac n'est pas compatible avec macOS Monterey, une mise à jour individuelle de Safari est disponible."

"This document describes the security content of macOS Monterey 12.2.1."

"Apple on Thursday released security updates for iOS, iPadOS, macOS, and Safari to address a new WebKit flaw that it said may have been actively exploited in the wild, making it the company's third zero-day patch since the start of the year."

Whenever there’s a new in-the-wild 0-day disclosed, I’m very interested in understanding the root cause of the bug. This allows us to then understand if it was fully fixed, look for variants, and brainstorm new mitigations. This blog is the story of a “zombie” Safari 0-day and how it came back from the dead to be disclosed as exploited in-the-wild in 2022. CVE-2022-22620 was initially fixed in 2013, reintroduced in 2016, and then disclosed as exploited in-the-wild in 2022. If you’re interested in the full root cause analysis for CVE-2022-22620, we’ve published it here.

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence that threat actors are actively exploiting the vulnerability listed in the table below. These types of vulnerabilities are a frequent attack vector for malicious cyber actors of all types and pose significant risk to the federal enterprise.

Apple a publié iOS 15.3.1 pour corriger la vulnérabilité CVE-2022-22620 de WebKit, qui serait activement exploitée par les cybercriminels. [version EN](https://www.kaspersky.com/blog/webkit-vulnerability-cve-2022-22620/43650/)

"Sorti hier, macOS 12.2.1 règle un problème de sécurité dans WebKit, le moteur de Safari, qui aurait pu permettre à une personne malintentionnée d'exécuter du code arbitraire en faisant simplement visiter à l'utilisateur une page web malveillante (CVE-2022-22620). Si votre Mac n'est pas compatible avec macOS Monterey, une mise à jour individuelle de Safari est disponible."

"This document describes the security content of macOS Monterey 12.2.1."

"Apple on Thursday released security updates for iOS, iPadOS, macOS, and Safari to address a new WebKit flaw that it said may have been actively exploited in the wild, making it the company's third zero-day patch since the start of the year."