Cisco SD-WAN Manager API Auth Remote File Overwrite
CVE-2026-20122 Published on February 25, 2026
Cisco Catalyst SD-WAN Manager Arbitrary File Overwrite Vulnerability
A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system.
This vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
Vulnerability Analysis
CVE-2026-20122 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
LOW
Integrity Impact:
LOW
Availability Impact:
NONE
Weakness Type
Incorrect Use of Privileged APIs
The application does not conform to the API requirements for a function call that requires extra privileges. This could allow attackers to gain privileges by causing the function to be called incorrectly.
Products Associated with CVE-2026-20122
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Affected Versions
Cisco Catalyst SD-WAN Manager:- Version 20.1.12 is affected.
- Version 19.2.1 is affected.
- Version 18.4.4 is affected.
- Version 18.4.5 is affected.
- Version 20.1.1.1 is affected.
- Version 20.1.1 is affected.
- Version 19.3.0 is affected.
- Version 19.2.2 is affected.
- Version 19.2.099 is affected.
- Version 18.3.6 is affected.
- Version 18.3.7 is affected.
- Version 19.2.0 is affected.
- Version 18.3.8 is affected.
- Version 19.0.0 is affected.
- Version 19.1.0 is affected.
- Version 18.4.302 is affected.
- Version 18.4.303 is affected.
- Version 19.2.097 is affected.
- Version 19.2.098 is affected.
- Version 17.2.10 is affected.
- Version 18.3.6.1 is affected.
- Version 19.0.1a is affected.
- Version 18.2.0 is affected.
- Version 18.4.3 is affected.
- Version 18.4.1 is affected.
- Version 17.2.8 is affected.
- Version 18.3.3.1 is affected.
- Version 18.4.0 is affected.
- Version 18.3.1 is affected.
- Version 17.2.6 is affected.
- Version 17.2.9 is affected.
- Version 18.3.4 is affected.
- Version 17.2.5 is affected.
- Version 18.3.1.1 is affected.
- Version 18.3.5 is affected.
- Version 18.4.0.1 is affected.
- Version 18.3.3 is affected.
- Version 17.2.7 is affected.
- Version 17.2.4 is affected.
- Version 18.3.0 is affected.
- Version 19.2.3 is affected.
- Version 18.4.501_ES is affected.
- Version 20.3.1 is affected.
- Version 20.1.2 is affected.
- Version 19.2.929 is affected.
- Version 19.2.31 is affected.
- Version 20.3.2 is affected.
- Version 19.2.32 is affected.
- Version 20.3.2_925 is affected.
- Version 20.3.2.1 is affected.
- Version 20.3.2.1_927 is affected.
- Version 18.4.6 is affected.
- Version 20.1.2_937 is affected.
- Version 20.4.1 is affected.
- Version 20.3.2_928 is affected.
- Version 20.3.2_929 is affected.
- Version 20.4.1.0.1 is affected.
- Version 20.3.2.1_930 is affected.
- Version 19.2.4 is affected.
- Version 20.5.0.1.1 is affected.
- Version 20.4.1.1 is affected.
- Version 20.3.3 is affected.
- Version 19.2.4.0.1 is affected.
- Version 20.3.2_937 is affected.
- Version 20.3.3.1 is affected.
- Version 20.5.1 is affected.
- Version 20.1.3 is affected.
- Version 20.3.3.0.4 is affected.
- Version 20.3.3.1.2 is affected.
- Version 20.3.3.1.1 is affected.
- Version 20.4.1.2 is affected.
- Version 20.3.3.0.2 is affected.
- Version 20.4.1.1.5 is affected.
- Version 20.4.1.0.01 is affected.
- Version 20.4.1.0.02 is affected.
- Version 20.3.3.1.7 is affected.
- Version 20.3.3.1.5 is affected.
- Version 20.5.1.0.1 is affected.
- Version 20.3.3.1.10 is affected.
- Version 20.3.3.0.8 is affected.
- Version 20.4.2 is affected.
- Version 20.4.2.0.1 is affected.
- Version 20.3.4 is affected.
- Version 20.3.3.0.14 is affected.
- Version 19.2.4.0.8 is affected.
- Version 19.2.4.0.9 is affected.
- Version 20.3.4.0.1 is affected.
- Version 20.3.2.0.5 is affected.
- Version 20.6.1 is affected.
- Version 20.5.1.0.2 is affected.
- Version 20.3.3.0.17 is affected.
- Version 20.6.1.1 is affected.
- Version 20.6.0.18.3 is affected.
- Version 20.3.2.0.6 is affected.
- Version 20.6.0.18.4 is affected.
- Version 20.4.2.0.2 is affected.
- Version 20.3.3.0.16 is affected.
- Version 20.3.4.0.5 is affected.
- Version 20.6.1.0.1 is affected.
- Version 20.3.4.0.6 is affected.
- Version 20.6.2 is affected.
- Version 20.7.1EFT2 is affected.
- Version 20.3.4.0.9 is affected.
- Version 20.3.4.0.11 is affected.
- Version 20.4.2.0.4 is affected.
- Version 20.3.3.0.18 is affected.
- Version 20.7.1 is affected.
- Version 20.6.2.1 is affected.
- Version 20.3.4.1 is affected.
- Version 20.5.1.1 is affected.
- Version 20.4.2.1 is affected.
- Version 20.4.2.1.1 is affected.
- Version 20.3.4.1.1 is affected.
- Version 20.3.813 is affected.
- Version 20.3.4.0.19 is affected.
- Version 20.4.2.2.1 is affected.
- Version 20.5.1.2 is affected.
- Version 20.3.4.2 is affected.
- Version 20.3.814 is affected.
- Version 20.4.2.2 is affected.
- Version 20.6.2.2 is affected.
- Version 20.3.4.2.1 is affected.
- Version 20.7.1.1 is affected.
- Version 20.3.4.1.2 is affected.
- Version 20.6.2.2.2 is affected.
- Version 20.3.4.0.20 is affected.
- Version 20.6.2.2.3 is affected.
- Version 20.4.2.2.2 is affected.
- Version 20.3.5 is affected.
- Version 20.6.2.0.4 is affected.
- Version 20.4.2.2.3 is affected.
- Version 20.3.4.0.24 is affected.
- Version 20.6.2.2.7 is affected.
- Version 20.6.3 is affected.
- Version 20.3.4.2.2 is affected.
- Version 20.4.2.2.4 is affected.
- Version 20.7.1.0.2 is affected.
- Version 20.8.1 is affected.
- Version 20.3.5.0.8 is affected.
- Version 20.3.5.0.9 is affected.
- Version 20.4.2.2.8 is affected.
- Version 20.3.5.0.7 is affected.
- Version 20.6.3.0.7 is affected.
- Version 20.6.3.0.5 is affected.
- Version 20.6.3.0.10 is affected.
- Version 20.6.3.0.2 is affected.
- Version 20.7.2 is affected.
- Version 20.9.1EFT2 is affected.
- Version 20.6.3.0.11 is affected.
- Version 20.6.3.1 is affected.
- Version 20.6.3.0.14 is affected.
- Version 20.6.4 is affected.
- Version 20.9.1 is affected.
- Version 20.6.3.0.19 is affected.
- Version 20.6.3.0.18 is affected.
- Version 20.3.6 is affected.
- Version 20.9.1.1 is affected.
- Version 20.6.3.0.23 is affected.
- Version 20.6.4.0.4 is affected.
- Version 20.6.3.0.25 is affected.
- Version 20.6.5 is affected.
- Version 20.6.3.0.27 is affected.
- Version 20.9.2 is affected.
- Version 20.9.2.1 is affected.
- Version 20.6.3.0.29 is affected.
- Version 20.6.3.0.31 is affected.
- Version 20.6.3.0.32 is affected.
- Version 20.10.1 is affected.
- Version 20.6.3.0.33 is affected.
- Version 20.9.2.0.01 is affected.
- Version 20.9.1_LI_Images is affected.
- Version 20.10.1_LI_Images is affected.
- Version 20.9.2_LI_Images is affected.
- Version 20.3.7 is affected.
- Version 20.9.3 is affected.
- Version 20.6.5.1 is affected.
- Version 20.11.1 is affected.
- Version 20.11.1_LI_Images is affected.
- Version 20.9.3_LI_ Images is affected.
- Version 20.6.3.1.1 is affected.
- Version 20.9.3.0.2 is affected.
- Version 20.6.5.1.2 is affected.
- Version 20.9.3.0.3 is affected.
- Version 20.4.2.3 is affected.
- Version 20.6.3.2 is affected.
- Version 20.6.4.1 is affected.
- Version 20.6.3.0.38 is affected.
- Version 20.6.3.0.39 is affected.
- Version 20.3.5.1 is affected.
- Version 20.3.4.3 is affected.
- Version 20.9.3.1 is affected.
- Version 20.3.3.2 is affected.
- Version 20.6.5.2 is affected.
- Version 20.3.7.1 is affected.
- Version 20.10.1.1 is affected.
- Version 20.6.5.2.1 is affected.
- Version 20.3.4.0.25 is affected.
- Version 20.6.2.2.4 is affected.
- Version 20.6.1.2 is affected.
- Version 20.11.1.1 is affected.
- Version 20.9.3.0.5 is affected.
- Version 20.3.4.0.26 is affected.
- Version 20.6.5.1.3 is affected.
- Version 20.6.3.0.40 is affected.
- Version 20.1.3.1 is affected.
- Version 20.9.2.2 is affected.
- Version 20.6.5.2.3 is affected.
- Version 20.6.5.1.4 is affected.
- Version 20.6.5.3 is affected.
- Version 20.6.3.0.41 is affected.
- Version 20.9.3.0.7 is affected.
- Version 20.6.5.1.5 is affected.
- Version 20.9.3.0.4 is affected.
- Version 20.6.4.0.19 is affected.
- Version 20.6.5.1.6 is affected.
- Version 20.9.3.0.8 is affected.
- Version 20.6.3.3 is affected.
- Version 20.3.7.2 is affected.
- Version 20.6.5.4 is affected.
- Version 20.6.5.1.7 is affected.
- Version 20.9.3.0.12 is affected.
- Version 20.6.4.2 is affected.
- Version 20.6.5.5 is affected.
- Version 20.9.3.2 is affected.
- Version 20.11.1.2 is affected.
- Version 20.6.3.4 is affected.
- Version 20.10.1.2 is affected.
- Version 20.6.5.1.9 is affected.
- Version 20.9.3.0.16 is affected.
- Version 20.6.3.0.45 is affected.
- Version 20.6.5.1.10 is affected.
- Version 20.9.3.0.17 is affected.
- Version 20.6.5.2.4 is affected.
- Version 20.6.4.0.21 is affected.
- Version 20.9.3.0.18 is affected.
- Version 20.6.3.0.46 is affected.
- Version 20.6.3.0.47 is affected.
- Version 20.9.2.3 is affected.
- Version 20.9.3.2_LI_Images is affected.
- Version 20.9.3.0.21 is affected.
- Version 20.9.3.0.20 is affected.
- Version 20.9.4_LI_Images is affected.
- Version 20.9.4 is affected.
- Version 20.6.5.1.11 is affected.
- Version 20.12.1 is affected.
- Version 20.12.1_LI_Images is affected.
- Version 20.6.5.1.13 is affected.
- Version 20.9.3.0.23 is affected.
- Version 20.6.5.2.8 is affected.
- Version 20.9.4.1 is affected.
- Version 20.9.4.1_LI_Images is affected.
- Version 20.9.3.0.25 is affected.
- Version 20.9.3.0.24 is affected.
- Version 20.6.5.1.14 is affected.
- Version 20.3.8 is affected.
- Version 20.6.6 is affected.
- Version 20.9.3.0.26 is affected.
- Version 20.6.3.0.51 is affected.
- Version 20.9.3.0.29 is affected.
- Version 20.12.2 is affected.
- Version 20.12.2_LI_Images is affected.
- Version 20.6.6.0.1 is affected.
- Version 20.13.1_LI_Images is affected.
- Version 20.9.4.0.4 is affected.
- Version 20.13.1 is affected.
- Version 20.9.4.1.1 is affected.
- Version 20.9.5 is affected.
- Version 20.9.5_LI_Images is affected.
- Version 20.12.3_LI_Images is affected.
- Version 20.12.3 is affected.
- Version 20.9.4.1.3 is affected.
- Version 20.6.7 is affected.
- Version 20.9.5.1 is affected.
- Version 20.9.5.1_LI_Images is affected.
- Version 20.9.4.1.6 is affected.
- Version 20.14.1 is affected.
- Version 20.14.1_LI_Images is affected.
- Version 20.9.5.2 is affected.
- Version 20.9.5.2.1 is affected.
- Version 20.9.5.2_LI_Images is affected.
- Version 20.12.3.1 is affected.
- Version 20.12.4 is affected.
- Version 20.15.1_LI_Images is affected.
- Version 20.15.1 is affected.
- Version 20.9.5.1.4 is affected.
- Version 20.9.5.2.7 is affected.
- Version 20.9.5.2.13 is affected.
- Version 20.9.6 is affected.
- Version 20.9.6_LI_Images is affected.
- Version 20.9.5.2.14 is affected.
- Version 20.6.8 is affected.
- Version 20.12.4.0.03 is affected.
- Version 20.16.1 is affected.
- Version 20.16.1_LI_Images is affected.
- Version 20.12.4_LI_Images is affected.
- Version 20.9.5.2.16 is affected.
- Version 20.12.4.0.4 is affected.
- Version 20.12.401 is affected.
- Version 20.9.5.3 is affected.
- Version 20.9.5.3_LI_Images is affected.
- Version 20.12.4.1_LI_Images is affected.
- Version 20.12.4.1 is affected.
- Version 20.9.5.2.21 is affected.
- Version 20.9.6.0.3 is affected.
- Version 20.12.4.0.6 is affected.
- Version 20.15.2_LI_Images is affected.
- Version 20.15.2 is affected.
- Version 20.12.4_Monthly_ES5 is affected.
- Version 20.12.5 is affected.
- Version 20.12.5_LI_Images is affected.
- Version 20.9.7_LI _Images is affected.
- Version 20.9.7 is affected.
- Version 20.15.3 is affected.
- Version 20.15.3_ LI _Images is affected.
- Version 20.12.501 is affected.
- Version 20.12.5.1_LI_Images is affected.
- Version 20.12.5.1 is affected.
- Version 20.12.5.2_LI_Images is affected.
- Version 20.12.5.2 is affected.
- Version 20.15.3.1 is affected.
- Version 20.15.4_LI_Images is affected.
- Version 20.15.4 is affected.
- Version 20.9.7.1_LI _Images is affected.
- Version 20.9.7.1 is affected.
- Version 20.18.1 is affected.
- Version 20.18.1_LI_Images is affected.
- Version 20.12.6_LI_Images is affected.
- Version 20.12.6 is affected.
- Version 20.12.5.1.01 is affected.
- Version 20.9.8 is affected.
- Version 20.9.8_LI_Images is affected.
- Version 20.18.2 is affected.
- Version 20.15.4.1_LI_Images is affected.
- Version 20.15.4.1 is affected.
- Version 20.18.2_LI_Images is affected.
Exploit Probability
EPSS
0.04%
Percentile
12.70%
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.