CISA and NSA Issue Urgent Guidance to Secure WSUS and Microsoft Exchange Servers
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2025-59287 | Deserialization RCE in Microsoft WSUS (Windows Server) | 9.8 | 100% | KEVPoC | KEV |
Indicators of compromise
auto-extracted · verify before use · export allAll| Type | Indicator | Context |
|---|---|---|
| domain | webhook.site | ncoded PowerShell commands, and exfiltrate the results to a webhook[.]site endpoint, corroborating other reports from Darktrace, Hun |
From the original article
3 min read at thehackernews.com
Ravie Lakshmanan Oct 31, 2025 Vulnerability / Threat Intelligence The U. S. Cybersecurity and Infrastructure Security Agency (CISA) and National Security Agency (NSA), along with international partners from Australia and Canada, have released guidance to harden on-premise Microsoft Exchange Server instances from potential exploitation.
By @TheHackersNews · thehackernews.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.