CVE-2026-20122 KEV
5.4
MEDIUM · CVSS 3.1 · EPSS 25% (pctl 98)
Patch first
On CISA KEV — known exploited in the wild, due 2026-04-23.
Description
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.
Scoring
| CVSS | 5.4 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| EPSS | 24.98% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-648 |
| On CISA KEV | yes — remediate by 2026-04-23 |
| Public exploit | none known |
| Published | 2026-02-25 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability |
|---|---|
| Added | 2026-04-20 |
| Due | 2026-04-23 |
| Vendor / product | Cisco / Catalyst SD-WAN Manger |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| cisco | catalyst sd-wan manager |
References
→ the Explorer · watch your stack · NVD