---
title: "Critical Linux kernel flaw allows remote root attacks on MPTCP servers"
type: signal
url: https://frontiernewswire.com/s/critical-linux-kernel-flaw-allows-remote-root-attacks-on-mptcp-servers-fc74d8de
published: 2026-10-30T21:09:46.000Z
byline: "Source: BleepingComputer"
---

# Critical Linux kernel flaw allows remote root attacks on MPTCP servers

Source: BleepingComputer · Published 2026-10-30 · Canonical: https://frontiernewswire.com/s/critical-linux-kernel-flaw-allows-remote-root-attacks-on-mptcp-servers-fc74d8de

Security researchers at Anthropic have developed an exploit for a critical Linux kernel vulnerability that allows unauthenticated attackers to remotely execute commands as root on servers running Multipath TCP (MPTCP) listeners. \[...\]

In this story: [Anthropic](https://frontiernewswire.com/companies/anthropic), [Cybersecurity](https://frontiernewswire.com/topics/cybersecurity), [Linux](https://frontiernewswire.com/models/linux)

## Sources

- [Read the original at BleepingComputer](https://www.bleepingcomputer.com/news/security/critical-linux-kernel-flaw-allows-remote-root-attacks-on-mptcp-servers)

## On Bluesky

- [Tomas Ström (@hapsis.bsky.social)](https://bsky.app/profile/hapsis.bsky.social/post/3mz4suk6ou222) (Oct 30, 2026): Critical Linux kernel flaw allows remote root attacks on MPTCP servers www.bleepingcomputer.com/news/securit... \#Kyberturvallisuus \#LaajaVaikutus \#Haavoittuvuus
- [tec\_acc (@postac001.bsky.social)](https://bsky.app/profile/postac001.bsky.social/post/3mz4sf3lt2v23) (Oct 30, 2026): LinuxカーネルのMPTCPに脆弱性、認証なしでリモートからroot権限でのコード実行が可能。

## Related on Frontier

- [Linux Kernel TCP Flaw With 9.8 CVSS Score Affects Ubuntu, Red Hat and Other Distributions](https://frontiernewswire.com/s/linux-kernel-tcp-flaw-with-9-8-cvss-score-affects-ubuntu-red-hat-and-d5cca31a)
- [Claude Model Builds Exploits Across Major Browsers \& OSes](https://frontiernewswire.com/s/claude-model-builds-exploits-across-major-browsers-oses-3f7541f6)
- [Anthropic AI model finds Linux kernel bug that leads to remote root access](https://frontiernewswire.com/s/anthropic-ai-model-finds-linux-kernel-bug-that-leads-to-remote-root-d428a906)
- [PHP2Shell Attack Roots 25 Servers, Breaches U.S. Government-Affiliated Network](https://frontiernewswire.com/s/php2shell-attack-roots-25-servers-breaches-u-s-government-affiliated-f1382972)
- [Even after PHP2Shell, blast radius matters more than a CVSS score](https://frontiernewswire.com/s/even-after-php2shell-blast-radius-matters-more-than-a-cvss-score-e44fc906)

---

[More Latest Signal](https://frontiernewswire.com/) · [Signals](https://frontiernewswire.com/verified-reporting)