CVE-2025-20327
Last modified
CVE-2025-20327 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. 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. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-20327?
How severe is CVE-2025-20327?
How do I fix CVE-2025-20327?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-20321In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7 and …4.3
- CVE-2025-20322In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7, and…4.3
- CVE-2025-20323In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7, and…4.3
- CVE-2025-20324In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.7, and…5.4
- CVE-2025-20325In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7, and…5.3
- CVE-2025-20326A vulnerability in the web-based management interface of Cis…8.8
- CVE-2025-20328A vulnerability in the user profile component of Cisco Webex…5.4
- CVE-2025-20329A vulnerability in the logging component of Cisco TelePresen…4.9
- CVE-2025-2033A vulnerability, which was classified as critical, was found…8.8
- CVE-2025-20330A vulnerability in the web-based management interface of Cis…6.1
- CVE-2025-20331A vulnerability in the web-based management interface of Cis…5.4
- CVE-2025-20332A vulnerability in the web-based management interface of Cis…4.3
Are you affected by CVE-2025-20327?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST