Latest cybersecurity reporting from selected sources.

Mozilla has released updates to address two critical flaws in Firefox for which it warned that exploit code has been published

SonicWall has warned of active exploitation of two zero-day vulnerabilities impacting Secure Mobile Access (SMA) 1000 series appliances, one of which could be exploited to achieve arbitrary command execution

A suspected China-aligned threat activity cluster has been observed exploiting Roundcube webmail software belonging to physics and engineering departments of U.S. and Canadian universities as part of a new campaign

Several versions of firmware released by Chinese network device manufacturer Tenda have been found to embed an undocumented authentication backdoor that enables administrative access to the devices' web management interfaces, the CERT Coordination Center (CERT/CC) warned Monday

A use-after-free bug in Linux's KVM hypervisor can be triggered from a guest virtual machine to corrupt the shadow-page state of the host kernel that runs it

Threat actors have been observed attempting to exploit a recently patched critical security flaw in Gitea Docker images, according to Sysdig

Threat actors are continuing to exploit a critical Langflow vulnerability as part of fresh attacks designed to deliver a Monero cryptocurrency miner

An unknown threat actor has been observed exploiting a recently disclosed maximum-severity security flaw in SimpleHelp to deliver two previously unreported malware families, TaskWeaver and Djinn Stealer

Attackers are exploiting a critical flaw in Oracle E-Business Suite, CVE-2026-46817, that allows remote, unauthenticated attackers to take over Oracle Payments. A critical vulnerability in Oracle E-Business Suite, tracked as CVE-2026-46817, is being actively exploited in the wild, according to cybersecurity firm Defused Cyber. “CVE-2026-46817 (CVSS 9.8 unauth HTTP takeover in Oracle E-Business) is being […]

Attackers have begun exploiting a critical vulnerability (CVE-2026-46817) in the Oracle E-Business Suite (EBS) financial application, according to threat intelligence company Defused. [...]

DirtyClone: a Linux kernel privilege escalation that silently rewrites executables in memory, leaving no disk trace. Patch now. JFrog Security Research published a working exploit walkthrough on June 25 for CVE-2026-43503 (CVSS score of 8.8), a Linux kernel privilege escalation they call DirtyClone. It’s the fourth vulnerability in the DirtyFrag family, all sharing the same […]

A flaw in the Linux kernel's traffic-control subsystem can let a local unprivileged user gain root on affected systems

DirtyClone is a new Linux kernel privilege escalation in the DirtyFrag family. JFrog Security Research published a working exploit walkthrough for the flaw on June 25, the first public demonstration for this variant

Threat actors have begun to exploit a recently disclosed critical security flaw impacting Cisco Unified Communications Manager (Unified CM) and Unified Communications Manager Session Management Edition (Unified CM SME)

Threat actors are exploiting a recently patched security flaw impacting Gravity SMTP, a WordPress plugin that's installed on about 100,000 sites

Bad actors are exploiting multiple security vulnerabilities in Fortinet FortiSandbox, according to threat intelligence firm Defused Cyber

Palo Alto Networks warns that attackers are actively exploiting CVE-2026-0257, a PAN-OS flaw that lets unauthorized users bypass authentication and establish VPN connections. Palo Alto Networks has confirmed active exploitation of CVE-2026-0257, a PAN-OS authentication bypass vulnerability affecting GlobalProtect portals and gateways. Palo Alto Networks addressed the vulnerability on May 13. Two weeks later, cybersecurity firm Rapid7 […]

The ShinyHunters extortion crew exploited an unpatched flaw in Oracle PeopleSoft to break into enterprise systems, steal data, and demand payment to keep it private. The campaign hit universities hardest

Despite a 2025 patch, Russian-linked groups still exploit a WinRAR flaw (CVE-2025-8088) to deploy malware via phishing archives. CVE-2025-8088 is a path traversal flaw in WinRAR that lets an attacker write files outside the extraction directory using NTFS Alternate Data Streams. WinRAR fixed it in version 7.13 in July 2025. Nearly a year later, Trend […]

Two Russia-aligned cyber attack campaigns have continued to exploit a security flaw in WinRAR to target Ukrainian organisations, almost a year after patches for the vulnerability were released