Critical Adobe Flash bug under active attack currently has no patch

Adobe is working on a patch for a newly-discovered vulnerability in Adobe Flash that is being actively exploited by hackers in targeted attacks. Ars Technica has the details:

The active zero-day exploit works against the most recent Flash version 21.0.0.242 and was detected earlier this month by researchers from antivirus provider Kaspersky Lab, according to a blog post published Tuesday by Costin Raiu, the director of the company’s global research and analysis team. It’s being carried out by “ScarCruft,” the name Kaspersky has given to a relatively new hacking group engaged in “advanced persistent threat” campaigns that target companies and organizations for high-value information and data.

Details on how to mitigate the threat can be found on Symantec’s website.

Adobe has published minimal information on its website, and a fix may arrive as early as tomorrow (Thursday 16 June).

Sign up to our free newsletter.
Security news, advice, and tips.

By which time you’ll hopefully also have had a chance to roll out the critical Patch Tuesday fixes Microsoft published yesterday.


Graham Cluley is an award-winning keynote speaker who has given presentations around the world about cybersecurity, hackers, and online privacy. A veteran of the computer security industry since the early 1990s, he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows, makes regular media appearances, and hosts the popular "Smashing Security" podcast. Follow him on LinkedIn, Bluesky and Mastodon, or drop him an email.

What do you think? Leave a comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.