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7.7HIGH

CVE-2025-20327 — A vulnerability in the web UI of Cisco IOS Software could allow an authenticated, remote attacker with low…

Cisco · Ios · Published 24 Sept 2025 · Modified 26 Sept 2026

Description

A vulnerability in the web UI of Cisco IOS Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper input validation. An attacker could exploit this vulnerability by sending a crafted URL in an HTTP request. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

References

What to do
  1. Check whether Ios is in your asset inventory.
  2. Patch in the next maintenance window; prioritise internet-facing systems.
  3. Record the decision in your risk register for audit evidence.
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Link: adminadda.com/cve/CVE-2025-20327