Vulnerabilities
Curated coverage and analysis in this editorial area.

ZDI-26-396: Reversed Operator in X.Org Server Opens Door to Arbitrary Read
An elementary coding error in X.Org Server allows out-of-bounds reads with potential escalation: the details of ZDI-26-396.

CVE-2026-48558: Djinn Stealer Exploited In-the-Wild on SimpleHelp
Threat actors exploit CVE-2026-48558 to deploy Djinn Stealer and TaskWeaver. The new infostealer targets AI and cloud credentials. Rou…

ZDI-26-397: Use-After-Free in X.Org Server Opens Door to Local Privilege Escalation
A Use-After-Free flaw in X.Org Server's CreateSaverWindow function (CVE-2026-50263) lets a local low-privilege attacker leak sensitive…

DirtyClone: The Fourth Variant in the DirtyFrag Family
CVE-2026-43503, the fourth variant in the DirtyFrag family, exploits cloned packets to corrupt file-backed memory. JFrog published a f…

Synology MailPlus: Three Critical CVEs, 2,100+ Servers Exposed
Synology released MailPlus Server 4.0.1-31663 to fix three critical vulnerabilities enabling arbitrary file read/write and internal se…

CVE-2026-9779: RCE in ATEN Unizon via Flawed Cryptographic Signature Check
The ZDI-26-383 vulnerability enables remote code execution with SYSTEM privileges by exploiting a signature verification error in ATEN…

macOS: Standard Users Disable EDR/MDM Without Admin Rights
A privilege escalation technique on macOS exploits CDHash caching and NIB injection to silently disable enterprise security tools. App…

Path Traversal in Allegra: CVE-2026-11442 Exposes Arbitrary Files
The ZDI-26-357 vulnerability in Allegra's exportReport method allows an authenticated remote attacker to read arbitrary files via path…

DifyTap: Four CVEs Expose Broken Cross-Tenant Isolation in Dify
Zafran Security disclosed DifyTap, four vulnerabilities in Dify that allowed cross-tenant reading of conversations and files. Three we…

Atril RCE via EPUB: Patch Available Nine Days Before Disclosure
ZDI-26-360: A heap buffer overflow in the MATE Desktop's Atril document viewer enables remote code execution through malicious EPUB fi…

Gravity SMTP: 17M Attacks Exploit Info-Disclosure Bug
CVE-2026-4020 in the WordPress Gravity SMTP plugin is under active exploitation, exposing email credentials and infrastructure bluepri…

ZDI-26-358: Allegra Patches XSS in downloadAttachment Method
The ZDI-26-358 advisory from Trend Micro's Zero Day Initiative discloses a cross-site scripting vulnerability in Allegra's downloadAtt…