7.5
High
CVE-2026-20128 Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
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.
Ransomware campaigns
Not observed so far
Weakness
CWE-257
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Catalyst SD-WAN Manager | 26.1.1 | No fix stated |
| Cisco Catalyst SD-WAN Manager | 20.12.501 | No fix stated |
| Cisco Catalyst SD-WAN Manager | 20.9.1EFT2 | No fix stated |
| Cisco Catalyst SD-WAN Manager | 20.7.1EFT2 | No fix stated |
| Cisco Catalyst SD-WAN Manager 20.6 | 20.6.0.18.3 → 20.6.5.1.4 | No fix stated |
| Cisco Catalyst SD-WAN Manager 20.5 | 20.5.0.1.1 → 20.5.1.2 | No fix stated |
| Cisco Catalyst SD-WAN Manager 20.4 | 20.4.1.0.1 → 20.4.2.3 | No fix stated |
| Cisco Catalyst SD-WAN Manager 20.3 | 20.3.1 → 20.3.814 | No fix stated |
| Cisco Catalyst SD-WAN Manager 20.1 | 20.1.1 → 20.1.12 | No fix stated |
Show the 8 other branches Hide the 8 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Catalyst SD-WAN Manager | 19.3.0 | No fix stated |
| Cisco Catalyst SD-WAN Manager 19.2 | 19.2.0 → 19.2.929 | No fix stated |
| Cisco Catalyst SD-WAN Manager | 19.1.0 | No fix stated |
| Cisco Catalyst SD-WAN Manager 19.0 | 19.0.0 → 19.0.1a | No fix stated |
| Cisco Catalyst SD-WAN Manager 18.4 | 18.4.0 → 18.4.303 | No fix stated |
| Cisco Catalyst SD-WAN Manager 18.3 | 18.3.0 → 18.3.8 | No fix stated |
| Cisco Catalyst SD-WAN Manager | 18.2.0 | No fix stated |
| Cisco Catalyst SD-WAN Manager 17.2 | 17.2.5 → 17.2.10 | No fix stated |
Other CVEs of Cisco Catalyst SD-WAN Manager
The 46 CVEs of Cisco Catalyst SD-WAN Manager →
CVE-2026-76504
Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability
9.8
Critical
CVE-2026-20313
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering…
7.7
High
CVE-2026-20312
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering…
8.8
High
CVE-2026-20310
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering…
9.1
Critical