Exploited vulnerabilities / CVE-2026-20245
Confirmed exploited · exploited vulnerability · Cisco Catalyst SD-WAN ManagerCVE-2026-20245
Cisco Catalyst SD-WAN Manager exploited vulnerability, confirmed exploited in the wild.
Cisco Catalyst SD-WAN Manager formerly SD-WAN vManage contains an improper encoding or escaping of output vulnerability. This vulnerability could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system.
| CISA's name for it | Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability |
|---|---|
| Vendor and product | Cisco · Catalyst SD-WAN Manager |
| Type | exploited vulnerability · CWE-116 |
| Exploited | Confirmed by CISA listed 9 June 2026 |
| Likelihood | one of the most likely to be exploited of every vulnerability tracked |
| Deadline | 23 June 2026 · already passed |
| Used in ransomware | Not reported |
| Advisories | sec.cloudapps.cisco.com ↗ · nvd.nist.gov ↗ |
Three steps, in this order
Apply the vendor's fix or mitigation; CISA lists only vulnerabilities seen exploited.
If you cannot patch now, restrict network access to the affected product.
Check for signs of compromise since the date it was added to the list.
| CISA's required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
|---|
Know before someone else finds it
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CVE-2026-20245 in short
Is CVE-2026-20245 being exploited?
Yes. CISA added CVE-2026-20245 to its Known Exploited Vulnerabilities catalogue on 9 June 2026, which it does only on evidence of exploitation in the wild.
What is the CISA deadline for CVE-2026-20245?
US federal agencies must remediate it by 23 June 2026. Everyone else should treat that date as the latest safe point to patch an internet-facing system.
How likely is CVE-2026-20245 to be exploited in the next 30 days?
FIRST's Exploit Prediction Scoring System gives it 25%, the 97th percentile of every CVE it scores.
How do I fix CVE-2026-20245?
Apply the vendor's fix or mitigation; CISA lists only vulnerabilities seen exploited. If you cannot patch now, restrict network access to the affected product. Check for signs of compromise since the date it was added to the list.
Other Cisco vulnerabilities being exploited
| CVE | Product | Type | Listed |
|---|---|---|---|
| CVE-2026-20320 | BroadWorks | exploited vulnerability | 10 November 2026 |
| CVE-2026-76418 | Secure Firewall ASA Software and Cisco Secure FTD Software | denial of service | 29 October 2026 |
| CVE-2026-76519 | Secure Email Gateway | path traversal | 14 October 2026 |
| CVE-2026-76504 | Catalyst SD-WAN Manager | privilege escalation | 30 September 2026 |
| CVE-2026-76460 | Identity Services Engine | privilege escalation | 16 September 2026 |
| CVE-2026-76461 | Secure Email Gateway | SQL injection | 14 September 2026 |
Sources: CISA Known Exploited Vulnerabilities catalogue (released 10 November 2026) and FIRST EPSS. Page compiled automatically by SAK T.L.M, the threat-intelligence tool of SAK T.E.C, on 13 November 2026.