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Bleeping Computer
A coordinated campaign has been observed targeting a recently disclosed critical-severity vulnerability that has been present in the GNU InetUtils telnetd server for 11 years. [...]
The Hacker News
A critical security flaw has been disclosed in the GNU InetUtils telnet daemon (telnetd) that went unnoticed for nearly 11 years. The vulnerability, tracked as CVE-2026-24061, is rated 9.8 out of 10.0 on the CVSS scoring system. It affects all versions of GNU InetUtils from version 1.9.3 up to and including version 2.7. "Telnetd in GNU Inetutils through 2.7 allows remote authentication bypass
The Register
Critical vuln flew under the radar for a decade A recently disclosed critical vulnerability in the GNU InetUtils telnet daemon (telnetd) is "trivial" to exploit, experts say.…
The Hacker News
The Chinese hacking group known as Mustang Panda has leveraged a previously undocumented kernel-mode rootkit driver to deliver a new variant of backdoor dubbed TONESHELL in a cyber attack detected in mid-2025 targeting an unspecified entity in Asia. The findings come from Kaspersky, which observed the new backdoor variant in cyber espionage campaigns mounted by the hacking group targeting
Bleeping Computer
A new sample of the ToneShell backdoor, typically seen in Chinese cyberespionage campaigns, has been delivered through a kernel-mode loader in attacks against government organizations. [...]
The Hacker News
This week’s cyber stories show how fast the online world can turn risky. Hackers are sneaking malware into movie downloads, browser add-ons, and even software updates people trust. Tech giants and governments are racing to plug new holes while arguing over privacy and control. And researchers keep uncovering just how much of our digital life is still wide open. The new Threatsday Bulletin
Check Point Research
Highlights: Introduction Throughout 2025, we conducted and published several reports related to our research on the Silver Fox APT. In some of them (for example, here), the threat actor delivered the well-known ValleyRAT backdoor, also referred to as Winos or Winos4.0, as the final stage. Since this malware family is widely used, modular, and often associated with Chinese threat actors […] The post appeared first on . Cracking ValleyRAT: From Builder Secrets to Kernel Rootkits Check Point Research
The Hacker News
Suspected espionage-driven threat actors from Iran have been observed deploying backdoors like TWOSTROKE and DEEPROOT as part of continued attacks aimed at aerospace, aviation, and defense industries in the Middle East. The activity has been attributed by Google-owned Mandiant to a threat cluster tracked as UNC1549 (aka Nimbus Manticore or Subtle Snail), which was first documented by the threat
Bleeping Computer
Dark Reading
A critical security issue in a popular endpoint manager (CVE-2025-61932) allowed Chinese state-sponsored attackers to backdoor Japanese businesses.