HIGH🚩 CISA KEV⚡ EXPLOIT✓ PATCH🇵🇱 Wersja polska

CVE-2026-20128

CVSS 7.5v3.1pub. 2026-02-25upd. 2026-04-21

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.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Cisco Catalyst Sd Wan Manager
APP
Cisco
20.12.6< 20.9.8.220.10 – 20.12.5.3 (bez)20.13 – 20.15.4.2 (bez)20.16 – 20.18 (bez)

CISA KEV — detailsi

Vendori: Cisco ↗
Producti: Catalyst SD-WAN Manager
Added to KEVi: April 20, 2026
Remediation deadline (US Federal)i: April 23, 2026(overdue)

🔧Advisory Cisco↗🇺🇸CISA KEV (original)↗

Required action (CISA)i

Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.

CISA descriptioni

Cisco Catalyst SD-WAN Manager contains a storing passwords in a recoverable format vulnerability that allows an authenticated, local attacker to gain DCA user privileges by accessing a credential file for the DCA user on the filesystem as a low-privileged user.

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