New "Bad Epoll" Linux Kernel Flaw Lets Unprivileged Users Gain Root, Hits Android
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-31431 | Local Privilege Escalation (Copy Fail) in Linux Kernel algif_aead Interface | 7.8 | 98% | KEVPoC ×12 | KEV |
| CVE-2026-31694 | Linux kernel: fuse: reject oversized dirents in page cache fuse_add_dirent_to_cache() computes a serialized dirent size… | 7.8 | <1% | PoC | |
| CVE-2026-43074 | Linux kernel: eventpoll: defer struct eventpoll free to RCU grace period | 7.8 | <1% | ||
| CVE-2026-46242 | Linux kernel: eventpoll: fix ep_remove struct eventpoll / struct file UAF ep_remove() (via ep_remove_file()) cleared… | 7.8 | 4% | PoC | |
| CVE-2026-4747 | Each RPCSEC_GSS data packet is validated by a routine which checks a signature in the packet | 8.8 | 3% | PoC ×2 |
From the original article
4 min read at thehackernews.com
A newly disclosed Linux kernel flaw called Bad Epoll (CVE-2026-46242) lets an ordinary user with no special access take full control of a machine as root. It affects Linux desktops, servers, and Android, and a fix is out. Bad Epoll sits in the same small stretch of kernel code where Anthropic's most powerful AI model, Mythos , recently found a different bug.
By @TheHackersNews · thehackernews.com
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