Cybersecurity Daily Briefings

Critical path traversal vulnerability via organization names allowing arbitrary file write and Git hook overwrites, leading to complete unauthenticated Remote Code Execution (RCE).

Critical prototype pollution flaw in XML and GSuiteAdmin nodes that allows authenticated workflow creators to achieve full remote code execution under the n8n process user.

Authentication bypass vulnerability in the administrative web interface actively weaponized in recent critical infrastructure attacks by Gunra ransomware operators.

Critical remote code execution and administrative bypass flaw actively exploited in chained attacks against global enterprise edge devices.

Critical directory traversal flaw leading to unauthenticated RCE. Actively exploited in the wild to establish reverse SSH backdoors and deploy Babuk ransomware.

Critical unauthenticated RCE in CI/CD build environments. Listed on CISA KEV with active exploitation observed across enterprise targets.

Zero-day privilege escalation vulnerability ('ShieldBreak') bypassing prior RoguePlanet protections. Listed on CISA KEV.

Critical unauthenticated remote code execution (RCE) flaw allowing full appliance compromise across perimeter network appliances.

Critical unauthenticated RCE. Added to CISA KEV Aug 5, 2026; attackers actively targeting build servers. Patch immediately.

RCE actively exploited to deploy a reverse SSH tool for persistence and remote access.

Zero-day; public PoC (ShieldBreak) claims Microsoft failed to fully patch prior RoguePlanet flaw CVE-2026-50656. Added to CISA KEV; federal agencies required to patch by Aug 25, 2026.

Maximum-severity flaw (insufficient authorization checks/input validation) allowing unauthenticated attackers to abuse a default authentication client and execute crafted requests. Actively exploited in the wild within days of the patch.

Directory-traversal vulnerability in vCenter Server enabling arbitrary code execution. Patched July 29, 2026 but now exploited by a suspected China-nexus APT to drop Babuk-derived ransomware on exposed instances.

Arbitrary code execution in the Whirlpool hash implementation: it loads native .so modules using broad glob patterns and no integrity verification, allowing attackers to plant malicious libraries in site-packages for native code execution.

Arbitrary file upload via handle_file_upload; insufficient file-type validation lets unauthenticated attackers bypass the dangerous-extension blocklist and upload malicious PHP leading to RCE. Actively exploited.

Use-after-free in the Windows AFD for WinSock lets an authenticated local attacker elevate privileges to SYSTEM. Actively exploited in the wild as a zero-day; Lazarus Group deployed the 'Troy' backdoor against defense and aerospace firms using it. Patch immediately.

Weak authentication (CWE-1390) allows an unauthenticated remote attacker to bypass a security feature over the network and potentially gain control of sensitive enterprise data. Reported under active exploitation; apply Patch Tuesday update.

Wormable remote code execution flaw in Windows DNS Server with a CVSS score of 9.8. No authentication required to exploit; highest priority patching due to wormable, network-propagation potential.

Unauthenticated attacker abuses a default authentication client and submits crafted input lacking validation, enabling arbitrary code execution and compromise of internal components. Patch via SAP Note 3771065.

Weak-authentication security-feature bypass (CWE-1390). Unauthenticated attacker can impersonate administrators. Actively exploited in the wild within days of Rapid7 publishing a public PoC.

Server-Side Request Forgery (SSRF). Exploited as a zero-day, often chained with CVE-2026-15410 (code injection) by INC ransomware actors. Patches and IOCs available; urgent patching recommended.

Use-after-free elevation-of-privilege flaw in Windows AFD.sys, actively exploited in the wild. A locally authenticated attacker can trigger a race condition for kernel-level access and SYSTEM privileges. Patched in August 2026 Patch Tuesday.

Improper authentication allows an unauthorized attacker to elevate privileges over the network without user interaction, with high impact to confidentiality, integrity and availability. Fully mitigated by Microsoft; no user action required.

Critical flaw in Cisco Catalyst SD-WAN and IOS XE discovered during internal security hardening review; allows security-control bypass and unauthorized access. One of five CVEs rated Critical 9.9. Patch immediately.

Use-after-free in the Windows kernel networking driver. Actively exploited zero-day (per Microsoft and Check Point, tied to Lazarus Operation Dream Job). Lets an attacker with code execution escalate to SYSTEM via a race condition.

Stack-based buffer overflow reachable remotely with no authentication and no user interaction. ZDI characterizes it as wormable; unauthenticated RCE on exposed DNS servers.

Unauthenticated remote code execution in Microsoft's implementation of the QUIC transport protocol; no user interaction required.

Code-execution half of a SharePoint exploit chain that, combined with the CVE-2026-55040 auth bypass (9.1, patched July), reaches unauthenticated RCE. Both fixes required.

Maximum-severity server-side request forgery (SSRF) in SMA1000 VPN appliances. Exploitation traced back to June 22, 2026, three weeks before a patch existed. Pre-auth access opens unauthenticated WebSocket tunnels, escalating to root. Actively exploited by INC ransomware.

Post-authentication code injection in the SMA1000 Appliance Management Console (AMC). Chained with CVE-2026-15409 to reach root-level OS access; exploited in the wild by ransomware operators.

Incorrect authorization flaw (CVSS 10.0) allowing arbitrary code execution as the current user with no user interaction required and changed scope. Enterprise marketing automation platform. Patch ASAP.