CVE-2026-20128KEV · OVERDUECWE-257

Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability

High · published February 25, 2026

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.5. It is confirmed in active exploitation. It sits in the 94.3th percentile for exploit probability.

183
days past CISA
deadline
CVSS v3.1
7.5
EPSS
7%
Percentile
94.3
In the wild
Confirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.07217 · 94.3th percentile
Weakness
CWE-257 · Storing Passwords in a Recoverable Format
Published
2026-02-25T16:14Z
KEV added
2026-04-20 · due 2026-04-23
EPSS history
Timeline
  • 20 APR 00:00Z
    Added to CISA KEV — remediate by Apr 23
    kev
  • 25 FEB 16:14Z
    Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability
    cvelistv5