CVE-2026-20133
Last modified
CVE-2026-20133 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. This vulnerability is due to insufficient file system restrictions. An authenticated attacker with netadmin privileges could exploit this vulnerability by accessing the vshell of an affected system. CISA has confirmed active exploitation in the wild. EPSS estimates a 10.24% chance of exploitation in the next 30 days.
Description
A vulnerability in Cisco Catalyst SD-WAN Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. This vulnerability is due to insufficient file system restrictions. An authenticated attacker with netadmin privileges could exploit this vulnerability by accessing the vshell of an affected system. A successful exploit could allow the attacker to read sensitive information on the underlying operating system.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Catalyst Sd-Wan Manager | < 20.9.8.2 |
| Cisco | Catalyst Sd-Wan Manager | >= 20.10, < 20.12.5.3 |
| Cisco | Catalyst Sd-Wan Manager | >= 20.13, < 20.15.4.2 |
| Cisco | Catalyst Sd-Wan Manager | >= 20.16, < 20.18.2.1 |
| Cisco | Catalyst Sd-Wan Manager | 20.12.6 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-20133?
How severe is CVE-2026-20133?
How do I fix CVE-2026-20133?
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 2026
- CVE-2026-20127A vulnerability in the peering authentication in Cisco Catal…10
- CVE-2026-20128A vulnerability in the Data Collection Agent (DCA) feature o…7.5
- CVE-2026-20129A vulnerability in the API user authentication of Cisco Cata…9.8
- CVE-2026-2013A vulnerability was identified in itsourcecode Student Manag…9.8
- CVE-2026-20131A vulnerability in the web-based management interface of Cis…10
- CVE-2026-20132Multiple vulnerabilities in the web-based management interfa…4.8
- CVE-2026-20136A vulnerability in the CLI of Cisco Identity Services E…6
- CVE-2026-20137In Splunk Enterprise versions below 10.2.0, 10.0.3, 9.4.5, 9…5.7
- CVE-2026-20138In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.7, 9…4.9
- CVE-2026-20139In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.8, 9…4.3
- CVE-2026-2014A security flaw has been discovered in itsourcecode Student …9.8
- CVE-2026-20141In Splunk Enterprise versions below 10.0.2, 10.0.3, 9.4.8, a…6.5
Are you affected by CVE-2026-20133?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST