// Deep technical intelligence on the highest-severity known-exploited vulnerabilities
We cover only Critical and High-severity vulnerabilities from the CISA Known Exploited Vulnerabilities catalogue — confirmed active threats with CVSS 7.0 or above. Each analysis breaks down the exploit mechanism, real-world attack campaigns, and concrete remediation steps so your team can act fast.
Microsoft — Defender (Microsoft Malware Protection Engine)
A link-following vulnerability in the Microsoft Malware Protection Engine allows a low-privilege local attacker to gain SYSTEM privileges by manipulating Defender into operating on attacker-controlled targets. Actively exploited in the wild.
Microsoft — Defender Antimalware Platform
An input validation flaw in Microsoft Defender's core scanning engine allows unauthenticated attackers to trigger resource exhaustion or a crash via crafted malicious payloads, disabling AV protection. Actively exploited and added to CISA KEV.
Microsoft — Exchange Server
A reflected cross-site scripting vulnerability in Exchange Server's Outlook Web Access (OWA) enables arbitrary JavaScript execution in victim browsers, facilitating session hijacking and credential theft under specific interaction conditions.
Cisco — Catalyst SD-WAN Controller & Manager
Authentication bypass in Cisco Catalyst SD-WAN Manager and Controller allows unauthenticated remote attackers to gain full administrative privileges without credentials.
BerriAI — LiteLLM
A SQL injection vulnerability in BerriAI LiteLLM allows authenticated attackers to read and modify the proxy database, exposing stored API keys for OpenAI, Anthropic, and other LLM providers.
Ivanti — Endpoint Manager Mobile (EPMM)
Improper input validation in Ivanti Endpoint Manager Mobile (EPMM) allows an authenticated administrator to execute arbitrary OS commands, leading to full server compromise.
Vuln Brief provides authoritative technical analysis of Critical and High-severity vulnerabilities from the CISA Known Exploited Vulnerabilities (KEV) catalogue — the definitive list of CVEs actively exploited in the wild.
We focus exclusively on CVSS 7.0+ entries — the vulnerabilities that represent the highest real-world risk to organisations. Each article goes beyond the NVD description, examining the exploit mechanism, affected code paths, real-world attack campaigns, and concrete remediation steps.
Coverage spans high-priority targets: enterprise network infrastructure, endpoint management, cloud-adjacent systems, and developer tooling — wherever Critical and High KEVs are actively exploited.
We cover only CVSS 7.0+ entries from the CISA KEV catalogue — confirmed active exploitation, highest real-world risk, no noise from lower-severity entries.
We cover exploit mechanisms, vulnerable code paths, CVSS breakdowns, and detection indicators — not just vendor advisories.
Every article includes patch guidance, version ranges, and interim mitigations for when immediate patching isn't possible.