Root privilege escalation via REST authentication flaw
Published Feb 25, 2026 · Updated Feb 25, 2026
Privilege escalation in Cisco Catalyst SD-WAN Manager allows local users with low privileges to gain root access to the operating system. The REST API applies insufficient user authentication when processing a request, allowing a low-privileged session to invoke privileged functionality. Exploitation requires an authenticated low-privileged account and local access; Cisco has not identified the affected REST endpoint or request fields.
Summary
What happened
Privilege escalation in Cisco Catalyst SD-WAN Manager allows local users with low privileges to gain root access to the operating system. The REST API applies insufficient user authentication when processing a request, allowing a low-privileged session to invoke privileged functionality. Exploitation requires an authenticated low-privileged account and local access; Cisco has not identified the affected REST endpoint or request fields.
The record
- CVE
- CVE-2026-20126
- Published
- Feb 25, 2026
- Updated
- Feb 25, 2026
- Vendor
- ClamAV
- Product
- Cisco Catalyst SD-WAN Manager
- Classifications
- CWE-648, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 25, 2026CVE publishedPublication date reported by the CVE source.
- Feb 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=17.2.10
- Affected versionversion=17.2.4
- Affected versionversion=17.2.5
- Affected versionversion=17.2.6
- Affected versionversion=17.2.7
- Affected versionversion=17.2.8
- Affected versionversion=17.2.9
- Affected versionversion=18.2.0
- Affected versionversion=18.3.0
- Affected versionversion=18.3.1
- Affected versionversion=18.3.1.1
- Affected versionversion=18.3.3
- Affected versionversion=18.3.3.1
- Affected versionversion=18.3.4
- Affected versionversion=18.3.5
- Affected versionversion=18.3.6
- Affected versionversion=18.3.6.1
- Affected versionversion=18.3.7
- Affected versionversion=18.3.8
- Affected versionversion=18.4.0
- Affected versionversion=18.4.0.1
- Affected versionversion=18.4.1
- Affected versionversion=18.4.3
- Affected versionversion=18.4.302
- Affected versionversion=18.4.303
- Affected versionversion=18.4.4
- Affected versionversion=18.4.5
- Affected versionversion=18.4.501_ES
- Affected versionversion=18.4.6
- Affected versionversion=19.0.0
- Affected versionversion=19.0.1a
- Affected versionversion=19.1.0
- Affected versionversion=19.2.0
- Affected versionversion=19.2.097
- Affected versionversion=19.2.098
- Affected versionversion=19.2.099
- Affected versionversion=19.2.1
- Affected versionversion=19.2.2
- Affected versionversion=19.2.3
- Affected versionversion=19.2.31
- Affected versionversion=19.2.32
- Affected versionversion=19.2.4
- Affected versionversion=19.2.4.0.1
- Affected versionversion=19.2.4.0.8
- Affected versionversion=19.2.4.0.9
- Affected versionversion=19.2.929
- Affected versionversion=19.3.0
- Affected versionversion=20.10.1
- Affected versionversion=20.10.1.1
- Affected versionversion=20.10.1.2
- Affected versionversion=20.10.1_LI_Images
- Affected versionversion=20.1.1
- Affected versionversion=20.1.1.1
- Affected versionversion=20.11.1
- Affected versionversion=20.11.1.1
- Affected versionversion=20.11.1.2
- Affected versionversion=20.11.1_LI_Images
- Affected versionversion=20.1.12
- Affected versionversion=20.1.2
- Affected versionversion=20.12.1
- Affected versionversion=20.12.1_LI_Images
- Affected versionversion=20.12.2
- Affected versionversion=20.12.2_LI_Images
- Affected versionversion=20.12.3
- Affected versionversion=20.12.3.1
- Affected versionversion=20.12.3_LI_Images
- Affected versionversion=20.12.4
- Affected versionversion=20.12.4.0.03
- Affected versionversion=20.12.401
- Affected versionversion=20.12.4.0.4
- Affected versionversion=20.12.4.0.6
- Affected versionversion=20.12.4.1
- Affected versionversion=20.12.4.1_LI_Images
- Affected versionversion=20.12.4_LI_Images
- Affected versionversion=20.12.4_Monthly_ES5
- Affected versionversion=20.12.5
- Affected versionversion=20.12.501
- Affected versionversion=20.12.5.1
- Affected versionversion=20.12.5.1.01
- Affected versionversion=20.12.5.1_LI_Images
- Affected versionversion=20.12.5.2
- Affected versionversion=20.12.5.2_LI_Images
- Affected versionversion=20.12.5_LI_Images
- Affected versionversion=20.12.6
- Affected versionversion=20.12.6_LI_Images
- Affected versionversion=20.1.2_937
- Affected versionversion=20.1.3
- Affected versionversion=20.1.3.1
- Affected versionversion=20.13.1
- Affected versionversion=20.13.1_LI_Images
- Affected versionversion=20.14.1
- Affected versionversion=20.14.1_LI_Images
- Affected versionversion=20.15.1
- Affected versionversion=20.15.1_LI_Images
- Affected versionversion=20.15.2
- Affected versionversion=20.15.2_LI_Images
- Affected versionversion=20.15.3
- Affected versionversion=20.15.3.1
- Affected versionversion=20.15.3_ LI _Images
- Affected versionversion=20.15.4
- Affected versionversion=20.15.4.1
- Affected versionversion=20.15.4.1_LI_Images
- Affected versionversion=20.15.4_LI_Images
- Affected versionversion=20.16.1
- Affected versionversion=20.16.1_LI_Images
- Affected versionversion=20.18.1
- Affected versionversion=20.18.1_LI_Images
- Affected versionversion=20.18.2
- Affected versionversion=20.18.2_LI_Images
- Affected versionversion=20.3.1
- Affected versionversion=20.3.2
- Affected versionversion=20.3.2.0.5
- Affected versionversion=20.3.2.0.6
- Affected versionversion=20.3.2.1
- Affected versionversion=20.3.2.1_927
- Affected versionversion=20.3.2.1_930
- Affected versionversion=20.3.2_925
- Affected versionversion=20.3.2_928
- Affected versionversion=20.3.2_929
- Affected versionversion=20.3.2_937
- Affected versionversion=20.3.3
- Affected versionversion=20.3.3.0.14
- Affected versionversion=20.3.3.0.16
- Affected versionversion=20.3.3.0.17
- Affected versionversion=20.3.3.0.18
- Affected versionversion=20.3.3.0.2
- Affected versionversion=20.3.3.0.4
- Affected versionversion=20.3.3.0.8
- Affected versionversion=20.3.3.1
- Affected versionversion=20.3.3.1.1
- Affected versionversion=20.3.3.1.10
- Affected versionversion=20.3.3.1.2
- Affected versionversion=20.3.3.1.5
- Affected versionversion=20.3.3.1.7
- Affected versionversion=20.3.3.2
- Affected versionversion=20.3.4
- Affected versionversion=20.3.4.0.1
- Affected versionversion=20.3.4.0.11
- Affected versionversion=20.3.4.0.19
- Affected versionversion=20.3.4.0.20
- Affected versionversion=20.3.4.0.24
- Affected versionversion=20.3.4.0.25
- Affected versionversion=20.3.4.0.26
- Affected versionversion=20.3.4.0.5
- Affected versionversion=20.3.4.0.6
- Affected versionversion=20.3.4.0.9
- Affected versionversion=20.3.4.1
- Affected versionversion=20.3.4.1.1
- Affected versionversion=20.3.4.1.2
- Affected versionversion=20.3.4.2
- Affected versionversion=20.3.4.2.1
- Affected versionversion=20.3.4.2.2
- Affected versionversion=20.3.4.3
- Affected versionversion=20.3.5
- Affected versionversion=20.3.5.0.7
- Affected versionversion=20.3.5.0.8
- Affected versionversion=20.3.5.0.9
- Affected versionversion=20.3.5.1
- Affected versionversion=20.3.6
- Affected versionversion=20.3.7
- Affected versionversion=20.3.7.1
- Affected versionversion=20.3.7.2
- Affected versionversion=20.3.8
- Affected versionversion=20.3.813
- Affected versionversion=20.3.814
- Affected versionversion=20.4.1
- Affected versionversion=20.4.1.0.01
- Affected versionversion=20.4.1.0.02
- Affected versionversion=20.4.1.0.1
- Affected versionversion=20.4.1.1
- Affected versionversion=20.4.1.1.5
- Affected versionversion=20.4.1.2
- Affected versionversion=20.4.2
- Affected versionversion=20.4.2.0.1
- Affected versionversion=20.4.2.0.2
- Affected versionversion=20.4.2.0.4
- Affected versionversion=20.4.2.1
- Affected versionversion=20.4.2.1.1
- Affected versionversion=20.4.2.2
- Affected versionversion=20.4.2.2.1
- Affected versionversion=20.4.2.2.2
- Affected versionversion=20.4.2.2.3
- Affected versionversion=20.4.2.2.4
- Affected versionversion=20.4.2.2.8
- Affected versionversion=20.4.2.3
- Affected versionversion=20.5.0.1.1
- Affected versionversion=20.5.1
- Affected versionversion=20.5.1.0.1
- Affected versionversion=20.5.1.0.2
- Affected versionversion=20.5.1.1
- Affected versionversion=20.5.1.2
- Affected versionversion=20.6.0.18.3
- Affected versionversion=20.6.0.18.4
- Affected versionversion=20.6.1
- Affected versionversion=20.6.1.0.1
- Affected versionversion=20.6.1.1
- Affected versionversion=20.6.1.2
- Affected versionversion=20.6.2
- Affected versionversion=20.6.2.0.4
- Affected versionversion=20.6.2.1
- Affected versionversion=20.6.2.2
- Affected versionversion=20.6.2.2.2
- Affected versionversion=20.6.2.2.3
- Affected versionversion=20.6.2.2.4
- Affected versionversion=20.6.2.2.7
- Affected versionversion=20.6.3
- Affected versionversion=20.6.3.0.10
- Affected versionversion=20.6.3.0.11
- Affected versionversion=20.6.3.0.14
- Affected versionversion=20.6.3.0.18
- Affected versionversion=20.6.3.0.19
- Affected versionversion=20.6.3.0.2
- Affected versionversion=20.6.3.0.23
- Affected versionversion=20.6.3.0.25
- Affected versionversion=20.6.3.0.27
- Affected versionversion=20.6.3.0.29
- Affected versionversion=20.6.3.0.31
- Affected versionversion=20.6.3.0.32
- Affected versionversion=20.6.3.0.33
- Affected versionversion=20.6.3.0.38
- Affected versionversion=20.6.3.0.39
- Affected versionversion=20.6.3.0.40
- Affected versionversion=20.6.3.0.41
- Affected versionversion=20.6.3.0.45
- Affected versionversion=20.6.3.0.46
- Affected versionversion=20.6.3.0.47
- Affected versionversion=20.6.3.0.5
- Affected versionversion=20.6.3.0.51
- Affected versionversion=20.6.3.0.7
- Affected versionversion=20.6.3.1
- Affected versionversion=20.6.3.1.1
- Affected versionversion=20.6.3.2
- Affected versionversion=20.6.3.3
- Affected versionversion=20.6.3.4
- Affected versionversion=20.6.4
- Affected versionversion=20.6.4.0.19
- Affected versionversion=20.6.4.0.21
- Affected versionversion=20.6.4.0.4
- Affected versionversion=20.6.4.1
- Affected versionversion=20.6.4.2
- Affected versionversion=20.6.5
- Affected versionversion=20.6.5.1
- Affected versionversion=20.6.5.1.10
- Affected versionversion=20.6.5.1.11
- Affected versionversion=20.6.5.1.13
- Affected versionversion=20.6.5.1.14
- Affected versionversion=20.6.5.1.2
- Affected versionversion=20.6.5.1.3
- Affected versionversion=20.6.5.1.4
- Affected versionversion=20.6.5.1.5
- Affected versionversion=20.6.5.1.6
- Affected versionversion=20.6.5.1.7
- Affected versionversion=20.6.5.1.9
- Affected versionversion=20.6.5.2
- Affected versionversion=20.6.5.2.1
- Affected versionversion=20.6.5.2.3
- Affected versionversion=20.6.5.2.4
- Affected versionversion=20.6.5.2.8
- Affected versionversion=20.6.5.3
- Affected versionversion=20.6.5.4
- Affected versionversion=20.6.5.5
- Affected versionversion=20.6.6
- Affected versionversion=20.6.6.0.1
- Affected versionversion=20.6.7
- Affected versionversion=20.6.8
- Affected versionversion=20.7.1
- Affected versionversion=20.7.1.0.2
- Affected versionversion=20.7.1.1
- Affected versionversion=20.7.1EFT2
- Affected versionversion=20.7.2
- Affected versionversion=20.8.1
- Affected versionversion=20.9.1
- Affected versionversion=20.9.1.1
- Affected versionversion=20.9.1EFT2
- Affected versionversion=20.9.1_LI_Images
- Affected versionversion=20.9.2
- Affected versionversion=20.9.2.0.01
- Affected versionversion=20.9.2.1
- Affected versionversion=20.9.2.2
- Affected versionversion=20.9.2.3
- Affected versionversion=20.9.2_LI_Images
- Affected versionversion=20.9.3
- Affected versionversion=20.9.3.0.12
- Affected versionversion=20.9.3.0.16
- Affected versionversion=20.9.3.0.17
- Affected versionversion=20.9.3.0.18
- Affected versionversion=20.9.3.0.2
- Affected versionversion=20.9.3.0.20
- Affected versionversion=20.9.3.0.21
- Affected versionversion=20.9.3.0.23
- Affected versionversion=20.9.3.0.24
- Affected versionversion=20.9.3.0.25
- Affected versionversion=20.9.3.0.26
- Affected versionversion=20.9.3.0.29
- Affected versionversion=20.9.3.0.3
- Affected versionversion=20.9.3.0.4
- Affected versionversion=20.9.3.0.5
- Affected versionversion=20.9.3.0.7
- Affected versionversion=20.9.3.0.8
- Affected versionversion=20.9.3.1
- Affected versionversion=20.9.3.2
- Affected versionversion=20.9.3.2_LI_Images
- Affected versionversion=20.9.3_LI_ Images
- Affected versionversion=20.9.4
- Affected versionversion=20.9.4.0.4
- Affected versionversion=20.9.4.1
- Affected versionversion=20.9.4.1.1
- Affected versionversion=20.9.4.1.3
- Affected versionversion=20.9.4.1.6
- Affected versionversion=20.9.4.1_LI_Images
- Affected versionversion=20.9.4_LI_Images
- Affected versionversion=20.9.5
- Affected versionversion=20.9.5.1
- Affected versionversion=20.9.5.1.4
- Affected versionversion=20.9.5.1_LI_Images
- Affected versionversion=20.9.5.2
- Affected versionversion=20.9.5.2.1
- Affected versionversion=20.9.5.2.13
- Affected versionversion=20.9.5.2.14
- Affected versionversion=20.9.5.2.16
- Affected versionversion=20.9.5.2.21
- Affected versionversion=20.9.5.2.7
- Affected versionversion=20.9.5.2_LI_Images
- Affected versionversion=20.9.5.3
- Affected versionversion=20.9.5.3_LI_Images
- Affected versionversion=20.9.5_LI_Images
- Affected versionversion=20.9.6
- Affected versionversion=20.9.6.0.3
- Affected versionversion=20.9.6_LI_Images
- Affected versionversion=20.9.7
- Affected versionversion=20.9.7.1
- Affected versionversion=20.9.7.1_LI _Images
- Affected versionversion=20.9.7_LI _Images
- Affected versionversion=20.9.8
- Affected versionversion=20.9.8_LI_Images
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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