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Cisco Issues Urgent Fix for Critical IOS Zero-Day Exploits

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Source: The Hacker News
Cisco Issues Urgent Fix for Critical IOS Zero-Day Exploits
Photo: The Hacker News
TL;DR

Cisco has issued a warning about a high-severity, actively exploited vulnerability in IOS and IOS XE Software (CVE-2025-20352) that affects SNMP protocols, allowing remote attackers with certain credentials to execute arbitrary code or cause a denial-of-service. The flaw, rooted in a stack overflow, has been patched in Cisco IOS XE Software Release 17.15.4a, but mitigation involves restricting SNMP access to trusted users and monitoring SNMP activity.

Topics:top-newsnetwork-security#cisco#dos#ios-software#network-security#rce#snmp-vulnerability
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  1. Cisco Warns of Actively Exploited SNMP Vulnerability Allowing RCE or DoS in IOS Software  The Hacker News
  2. Cisco warns of IOS zero-day vulnerability exploited in attacks  BleepingComputer
  3. As many as 2 million Cisco devices affected by actively exploited 0-day  Ars Technica
  4. Cisco fixes IOS/IOS XE zero-day exploited by attackers (CVE-2025-20352)  Help Net Security
  5. Cisco Patches Zero-Day Flaw Affecting Routers and Switches  SecurityWeek

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