Cisco discloses second exploited SD-WAN vulnerability in two weeks (CVE-2026-20262)
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-20122 | Arbitrary File Overwrite via Privileged APIs in Cisco Catalyst SD-WAN Manager | 5.4 | 26% | KEV | KEV |
| CVE-2026-20127 | Authentication Bypass in Cisco Catalyst SD-WAN Controller, Manager, Validator | 10.0 | 89% | KEV | KEV |
CVE-2026-20133+1 related CVE | Actively Exploited Information Disclosure in Cisco Catalyst SD-WAN Manager | 7.5 | 31% | KEV | KEV |
| CVE-2026-20182 | Authentication Bypass in Cisco Catalyst SD-WAN Control Components | 10.0 | 92% | KEV | KEV |
| CVE-2026-20245 | Command Injection as Root in Cisco Catalyst SD-WAN Manager | 7.8 | 25% | KEV | KEV |
| CVE-2026-20262 | Authenticated Path Traversal File Overwrite in Cisco Catalyst SD-WAN Manager | 6.5 | 29% | KEV | KEV |
From the original article
3 min read at helpnetsecurity.com
Cisco has revealed another Catalyst SD-WAN Manager vulnerability (CVE-2026-20262) that its Product Security Incident Response Team observed being exploited by attackers. But the associated security advisory also states that “the vulnerability was found during internal security testing”, raising the question of how attackers came to exploit it before Cisco had disclosed it publicly.
By @zeljkazorz · helpnetsecurity.com
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