CVE-2026-20128 KEV
Patch first
On CISA KEV — known exploited in the wild, due 2026-04-23.
Description
A vulnerability in the Data Collection Agent (DCA) feature of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain DCA user privileges on an affected system. This vulnerability is due to the presence of a credential file for the DCA user on an affected system. An attacker could exploit this vulnerability by sending a crafted HTTP request and reading the file that contains the DCA password from that affected system. A successful exploit could allow the attacker to access another affected system and gain DCA user privileges. Note: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 7.06% — more likely to be exploited than 94% of all CVEs |
| Weakness | CWE-257 |
| 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 Storing Passwords in a Recoverable Format Vulnerability |
|---|---|
| Added | 2026-04-20 |
| Due | 2026-04-23 |
| Vendor / product | Cisco / Catalyst SD-WAN Manager |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| cisco | catalyst sd-wan manager |
References
→ the Explorer · watch your stack · NVD