Microsoft Patches Exploited Windows Zero-Day CVE-2023-21674
IPA warns a Microsoft Windows vulnerability, CVE-2023-21674, is being actively exploited in the wild and urges immediate patching.
Sourceipa.go.jp — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- CISA lists CVE-2023-21674 as exploited in the wild.
Japan's IPA issued an alert following Microsoft's January 2023 Patch Tuesday release, highlighting multiple vulnerabilities across Microsoft products. Among these, CVE-2023-21674 stands out as Microsoft has confirmed active exploitation of this flaw in the wild. Successful exploitation could allow attackers to crash affected applications or gain control over a victim's computer, leading to a range of damaging outcomes.
Given the confirmed in-the-wild exploitation, IPA urges organizations and users to apply Microsoft's security updates as soon as possible to mitigate risk of further compromise. No specific threat actor, malware family, or targeted sector was identified in the advisory; the notice is a general call to action for all Windows users to patch promptly via Windows Update.
Mentioned in this report
Source reporting: https://www.ipa.go.jp/archive/security/security-alert/2022/20230111-ms.html
Free public brief. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them, no card.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,445 reports from 149 sources, 666 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs