[runlevel1]

How about that time Avast gave you RCE by simply adding HTML to the CN field of an invalid certificate?[^1] Or when TrendMicro added an unauthenticated listener that would exec anything you sent it?[^2]

[1]: https://www.theregister.com/2015/10/06/google_zero_hacker_re... [2]: https://bugs.chromium.org/p/project-zero/issues/detail?id=69...