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CISA Adds Eight Exploited Vulnerabilities to KEV Catalog Including Three Cisco SD-WAN Manager Flaws and Quest KACE CVSS 10.0

Alerts

CISA Adds Eight Exploited Vulnerabilities to KEV Catalog Including Three Cisco SD-WAN Manager Flaws and Quest KACE CVSS 10.0

CISA added eight new vulnerabilities to its Known Exploited Vulnerabilities catalog on Monday, setting aggressive federal patching deadlines after confirming active exploitation across a range of enterprise products. Three of the flaws target Cisco Catalyst SD-WAN Manager, while the remaining five affect Quest KACE, PaperCut, JetBrains TeamCity, Kentico Xperience,

By Zero Day Wire
Former Ransomware Negotiators Pleads Guilty to Running BlackCat Attacks Against the Companies They Were Hired to Protect

Breaches

Former Ransomware Negotiators Pleads Guilty to Running BlackCat Attacks Against the Companies They Were Hired to Protect

Angelo Martino, a 41-year-old former ransomware negotiator at cybersecurity incident response firm DigitalMint, has pleaded guilty to targeting U.S. companies with BlackCat (ALPHV) ransomware while simultaneously working as a negotiator supposedly helping victims resolve attacks. Martino is the third defendant to plead guilty in a case that

By Zero Day Wire
Iranian APT Seedworm Deploys Dindoor Backdoor via Microsoft Teams Social Engineering Using Deno Runtime for In-Memory Execution

Threats

Iranian APT Seedworm Deploys Dindoor Backdoor via Microsoft Teams Social Engineering Using Deno Runtime for In-Memory Execution

CyberProof researchers have uncovered a campaign by Iranian APT group Seedworm that uses Microsoft Teams as an initial access vector, deploying a custom backdoor called Dindoor through social engineering that impersonates IT support personnel. The campaign emerged in early March 2026, coinciding with a surge in Iranian-linked cyber activity

By Zero Day Wire
Vercel Breached via OAuth Supply Chain Attack — Attacker Bypassed MFA Without Stealing a Single Credential

Breaches

Vercel Breached via OAuth Supply Chain Attack — Attacker Bypassed MFA Without Stealing a Single Credential

A threat actor has breached Vercel's developer infrastructure through an identity supply chain attack that bypassed multi-factor authentication entirely — without stealing a single credential. The compromise, disclosed in April 2026, exploited a breached third-party OAuth integration to inherit valid Google Workspace sessions belonging to Vercel developers,

By Zero Day Wire
DSCourier Proof-of-Concept Abuses WinGet COM API to Bypass CrowdStrike Falcon, Microsoft Defender, and Elastic EDR

Threats

DSCourier Proof-of-Concept Abuses WinGet COM API to Bypass CrowdStrike Falcon, Microsoft Defender, and Elastic EDR

A security researcher has released DSCourier, a proof-of-concept tool that abuses the WinGet Configuration COM API to apply arbitrary Desired State Configuration (DSC) configurations through Microsoft-signed binaries — a technique that has been demonstrated bypassing three of the most widely deployed enterprise EDR platforms: CrowdStrike Falcon, Microsoft Defender

By Zero Day Wire