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On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email

On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email

Ravie LakshmananMay 15, 2026Microsoft / Vulnerability Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-42897… 

CISA Adds Cisco SD-WAN CVE-2026-20182 to KEV After Admin Access Exploits

CISA Adds Cisco SD-WAN CVE-2026-20182 to KEV After Admin Access Exploits

Ravie LakshmananMay 15, 2026Vulnerability / Credential Theft The U.S.Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a newly disclosed vulnerability impacting Cisco Catalyst SD-WAN Controller to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal… 

Cisco Catalyst SD-WAN Controller Auth Bypass Actively Exploited to Gain Admin Access

Cisco Catalyst SD-WAN Controller Auth Bypass Actively Exploited to Gain Admin Access

Ravie LakshmananMay 14, 2026Vulnerability / Network Security Cisco has released updates to address a maximum-severity authentication bypass flaw in Catalyst SD-WAN Controller that it said has been exploited in limited attacks. The vulnerability, tracked as… 

Stealer Backdoor Found in 3 Node-IPC Versions Targeting Developer Secrets

Stealer Backdoor Found in 3 Node-IPC Versions Targeting Developer Secrets

Cybersecurity researchers are sounding the alarm about what has been described as “malicious activity” in newly published versions of node-ipc. According to Socket and StepSecurity, three different versions of the npm package have been confirmed… 

Ghostwriter Targets Ukrainian Government With Geofenced PDF Phishing, Cobalt Strike

Ghostwriter Targets Ukrainian Government With Geofenced PDF Phishing, Cobalt Strike

The Belarus-aligned threat group known as Ghostwriter has been attributed to a fresh set of attacks targeting governmental organizations in Ukraine. Active since at least 2016, Ghostwriter has been linked to both cyber espionage and… 

PraisonAI CVE-2026-44338 Auth Bypass Targeted Within Hours of Disclosure

PraisonAI CVE-2026-44338 Auth Bypass Targeted Within Hours of Disclosure

Ravie LakshmananMay 14, 2026Vulnerability / API Security Threat actors have been observed attempting to exploit a recently disclosed security vulnerability in PraisonAI, an open-source multi-agent orchestration framework, within four hours of public disclosure. The vulnerability… 

Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation

Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation

An anonymous cybersecurity researcher who disclosed three Microsoft Defender vulnerabilities has returned with two more zero-days involving a BitLocker bypass and a privilege escalation impacting Windows Collaborative Translation Framework (CTFMON). The security defects have been… 

New Fragnesia Linux Kernel LPE Grants Root Access via Page Cache Corruption

New Fragnesia Linux Kernel LPE Grants Root Access via Page Cache Corruption

Ravie LakshmananMay 14, 2026Vulnerability / Linux Details have emerged about a new variant of the recent Dirty Frag Linux local privilege escalation (LPE) vulnerability that allows local attackers to gain root access, making it the…