CVE-2026-20182: Cisco Catalyst SD-WAN EITW

Last Updated: 2026-05-15T18:08:25Z

What’s Happening

CVE-2026-20182 Authentication Bypass in Cisco Catalyst SD-WAN controller has been found exploited in the wild. It has a severity rating of 10.

Rapid 7, who initially disclosed the vulnerability, has published their own in-depth analysis and timeline.

Rapid7 has also released a Metasploit Module that exploits this vulnerability.

Cisco has released an update and disclosed a number of IOC’s related to the ongoing exploitation.

The NIST CVE entry.

Actions

Update Cisco SD-WAN. This table from Rapid7 shows patched versions for all fixed releases:

Cisco Catalyst SD-WAN Release First Fixed Release
Earlier than 20.9* Migrate to a fixed release
20.9 20.9.9.1
20.10 20.12.7.1
20.11* 20.12.7.1
20.12 20.12.5.4, 20.12.6.2, 20.12.7.1
20.13* 20.15.5.2
20.14* 20.15.5.2
20.15 20.15.4.4, 20.15.5.2
20.16* 20.18.2.2
20.18 20.18.2.2
26.1.1 26.1.1.1

Indicators of Compromise

Note that the Cisco Talos IoCs listed in their linked GitHub repo appear to be for a different campaign.

Value Type Description
38.181.52[.]89 IPv4 Cluster 1
89.125.244[.]33 IPv4 Cluster 1
89.125.244[.]51 IPv4 Cluster 1
71.80.85[.]135 IPv4 Cluster 2
212.83.162[.]37 IPv4 Cluster 3
38.60.214[.]92 IPv4 Cluster 4
65.20.67[.]134 IPv4 Cluster 4
104.233.156[.]1 IPv4 Cluster 4
194.233.100[.]40 IPv4 Cluster 4
f6f8e0d790645395188fc521039385b7c4f42fa8b426fd035f489f6cda9b5da1 sha256 Cluster 5 – AdaptixC2 sample
194.163.175[.]135:4445 IPv4:port Cluster 5 – AdaptixC2 C2 server
194.163.175[.]135 IPv4 Cluster 5 – AdaptixC2 C2 IP
02654acfb21f83485393ba8b14bd8862b919b9ec966fc6768f6aac1338a45ee8 sha256 Cluster 6 – Sliver sample
mtls://23.27.143[.]170:443 url Cluster 6 – Sliver C2 over mTLS
23.27.143[.]170 IPv4 Cluster 6 – Sliver C2 IP
0ed72d52347bfe4a78afff8a6982a64050c8fc86d8957a20eeb3e0f3f5342ed0 sha256 Cluster 7 – XMRig downloader script
96fc528ca5e7d1c2b3add5e31b8797cb126f704976c8fbeaecdbf0aa4309ad46 sha256 Cluster 7 – XMRig sample
7aa88a64a527ade7d93c20faf23b54f2ee33ad9b1246cdc2f8ded2ab639affb1 sha256 Cluster 7 – XMRig configuration
83.229.126[.]195 IPv4 Cluster 7 – XMRig remote location IP
hxxp://83.229.126[.]195:8081/xmrig url Cluster 7 – XMRig remote URL
hxxp://83.229.126[.]195:8081/config.json url Cluster 7 – XMRig configuration file remote location
0c87871642f84e09e8d3fb23ec36bf55601323e31151a7017a85dbec929cf15d sha256 Cluster 8 – Nim-based backdoor
hxxps://1a820b09-95ba-44eb-b350-417e8241b725-00-1lgwuuen9b77p.worf.replit[.]dev/download url Cluster 8 – Download URL for the Nim-based backdoor
1a820b09-95ba-44eb-b350-417e8241b725-00-1lgwuuen9b77p.worf.replit.dev hostname Cluster 8 – Attacker controlled sub-domain hosting the Nim-based backdoor
79.135.105[.]208 IPv4 Cluster 8 – Attacker IP that downloaded the Nim-based backdoor
hxxp://13[.]62[.]52[.]206:5004 url Cluster 8 – C2 for Nim-based backdoor
13.62.52[.]206 IPv4 Cluster 8 – C2 IP for Nim-based backdoor
18d77c9c5bbb5b9d5bdfd366fdfcf26bad9e64c63ca865fad711bcce8e3d5a80 sha256 Cluster 8 – KScan scanning tool
176.65.139[.]31 IPv4 Cluster 8 – IP related to Nim-based backdoor and KScan
d94f75a70b5cabaf786ac57177ed841732e62bdcc9a29e06e5b41d9be567bcfa sha256 Cluster 9 – gsocket sample
5bc5998161056b7c8f70c9724d8a63abc7ff8c3843b91c30cffab0899e39b7f8 sha256 Cluster 9 – gsocket secret file
47.104.248[.]7 IPv4 Cluster 9 – IP related to Miner activity
b0f51b098842cd630097b462aab0ec357e2c7824af37cca6d08165265da2c2d3 sha256 Cluster 10 – VManage credential extractor script
72f570ce97de3eaaffef33d90b0c337a153fc9690cc34ee207b557d868360060 sha256 Cluster 10 – Check for root escalation
17302d903baf182f94dc3be40ab1e0874dd0eb2ec5255bf9131fd53591efe925 sha256 Cluster 10 – Check for root escalation

Notes