Latest cybersecurity reporting from selected sources.

Agencies Have Until Sunday to Patch Two Critical Command Injection FlawsCISA added two critical FortiSandbox command injection vulnerabilities to its Known Exploited Vulnerabilities catalog after evidence of active attacks. Experts warn that unauthenticated remote code execution could let attackers compromise malware analysis systems and pivot deeper into enterprise networks.

Unauthenticated Flaw Allows Full Router, Network TakeoverA hidden backdoor, disclosed by CERT/CC and found in multiple firmware versions made by Chinese manufacturer Tenda, bypasses authentication and could grant attackers administrative access. Researchers are reporting exploitation and an Nmap script is making vulnerable devices easier to identify.

Unauthenticated Flaw Allows Full Router, Network TakeoverA hidden backdoor, disclosed by CERT/CC and found in multiple firmware versions made by Chinese manufacturer Tenda, bypasses authentication and could grant attackers administrative access. Researchers are reporting exploitation and an Nmap script is making vulnerable devices easier to identify.

Claroty Warns of Downtime, 'Devastating' Impact of Vulnerabilities in OT SystemsVulnerabilities in backup power devices and heating and cooling control systems widely used in data centers could enable remote cyberattacks and result in costly downtime and "devastating" operational impact, according to new research from OT security firm Claroty.

Botnet Operators Execute First Known Exploit of Nearly Decade-Old FlawOperators behind a botnet picked up on a nearly decade-old flaw in Asus routers allowing an unauthenticated attacker to achieve remote code execution as a root user. VulnCheck began observing exploitation of the Asus vulnerability on May 17.

Kernel Privilege Escalation Has One Linux Maintainer Contemplating a 'Kill Switch'Back-to-back kernel vulnerabilities in Linux has defenders scrambling to apply defenses in the age of quick turnaround time for hackers to exploit nascent flaws. "Dirty Frag" and "Copy Fail" kernel privilege escalation vulnerabilities became public knowledge within two weeks of each other.

No Patches Yet Available, After Third Party Published Vulnerability DetailsSecurity researchers have discovered a new, critical flaw in the Linux kernel that attackers can exploit to gain root access. No patches are yet available to fix "Dirty Frag," the second new local privilege escalation flaw to be found in two weeks, following the similar "Copy Fail" vulnerability.

Mythos Found ‘Tens of Thousands’ of Unpatched Flaws With Months to Fix ThemAnthropic CEO Dario Amodei warned that Claude Mythos has found tens of thousands of unpatched software vulnerabilities, with a six-to-12 month window before Chinese AI models catch up. The disclosure came alongside a major financial services push including an investor-backed firm and 10 new AI agents.

Vendor Details Mitigations, Promises Patched PAN-OS Software in Coming WeeksPalo Alto Networks warned that a critical vulnerability in the PAN-OS software that runs its firewalls is being actively exploited in the wild by attackers. The vendor detailed temporary mitigations and promised to release updated software to fully patch the flaw later this month.

Critical Flaw Needs Patching in Widely-Used, Shared Hosting Infrastructure SoftwareTens of thousands of online dashboards controlling servers and web hosting accounts appear to have been compromised by attackers exploiting a recently announced, critical vulnerability.

AI-Assisted Offensive Security Researcher Discovered Flaw After 1 Hour of ScanningPatch all Linux kernels issued from 2017 onwards to fix a serious vulnerability in the kernel’s cryptography API that can be easily exploited by a local, unprivileged user to gain root-level access. The major flaw is the latest to be found by an AI-assisted researcher.

AI Tool Used to Discover Bugs, Which Included 2 Maximum Severity VulnerabilitiesResearchers at security firm AISLE said they recently identified 38 vulnerabilities, including two maximum-severity zero-day flaws in OpenEMR, an open-source electronic medical record software platform used by about 100,000 healthcare providers globally. OpenEMR has patched the problems.

Early Tests of New Anthropic AI Model Show Fast Detection, Better Flaw CorrelationCrowdStrike's early testing of Anthropic's new Claude Mythos Preview AI model shows faster vulnerability detection and improved cross-system context, signaling a shift toward AI-driven security operations that compress discovery-to-response timelines and force new defensive frameworks.

Asymmetry Between Exploits Wielded by Nation-States and Hackers Will DisappearAnthropic's announcement that its Mythos Preview large language model can find serious zero-day flaws across all manner of code bases old and new, and quickly chain vulnerabilities together to build working exploits, promises to democratize access to such capabilities.

F5 Revises Severity of Flaw Disclosed Last YearFlaws in major application delivery and security platforms and VPN gateways are being actively exploited or targeted. Under fire: a vulnerability in F5 BIG-IP Access Policy Manager can facilitate remote code execution, and a "memory overread" flaw in NetScaler Application Delivery Controller.

Police Fanned Out Early Sunday Brandishing an Advisory of a CVSS 10 VulnerabilityPolice officers across Germany roused corporate IT administrators during the early hours of Sunday morning. Their message to bleary-eyed admins was to immediately patch a critical vulnerability in popular product lifecycle management software from U.S. vendor PTC.

Is AI Exposing a Growing Vulnerability Risk Mitigation Gap?AI-fueled tools can help to identify medical device vulnerabilities much faster and at a higher volume than more traditional tools. But can device manufacturers and healthcare delivery organizations keep up with prioritizing and addressing a tidal wave of newly discovered flaws?

AWS Researchers Find an Interlock Server Laden With ToolsRansomware hackers exploited a flaw with a maximum vulnerability score in Cisco firewall management software weeks before the networking giant disclosed the vulnerability in early March. The group has focused extensively on critical infrastructure sectors in North America and Europe.

Internet-Connected Remote Access Tools Operate at UEFI LevelA flood of lost-cost devices for remote IP control of servers or human-machine interfaces has roused a concomitant wave of security warnings about their security defects. Firmware security company Eclypsium probed devices made by four KVM vendors, discovering nine vulnerabilities.

Individual Vulnerability Severity Not Always a Good Measure of Risk ExposureA mainstay of IT security programs across the world, the Common Vulnerability Scoring System, may have terminal flaws when applied to the mirror universe of operational technology - a place where ordinary assumptions about risk don't apply.