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Known Exploited Vulnerability
7.8
HIGH CVSS 3.1
CVE-2026-20245
Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability - [Actively Exploited]
Overview
Description

A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user.  To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the that was published on May 14, 2026, and verify the configuration of the edge devices.

Details
INFO

Published Date :

June 4, 2026, 11:17 p.m.

Last Modified :

June 10, 2026, 12:59 p.m.

Remotely Exploit :

No

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

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.

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.

Known Ransomware Campaign Use:

Unknown

Notes :

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx ; https://nvd.nist.gov/vuln/detail/CVE-2026-20245

Impact
Affected Products

The following products are affected by CVE-2026-20245 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cisco catalyst_sd-wan_manager
2 Cisco sd-wan_vsmart_controller
: Total Affected Vendor : 1 | Products : 2
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
Upgrade software to a fixed version to address command injection vulnerability and verify edge device configuration.
  • Upgrade to the fixed software version.
  • Verify edge device configuration.
  • Apply necessary patches or updates.
  • Restrict access to netadmin privileges.
Public PoC/Exploit Available at Github

CVE-2026-20245 has a 8 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-20245.

URL Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx Vendor Advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20245 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-20245 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-20245 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
0xBlackash/CVE-2026-20245

CVE-2026-20245

Python

Updated: 1 week, 2 days ago
4 stars 1 fork 1 watcher
Born at : June 14, 2026, 10:23 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
HORKimhab/CVE-2026-20245

CVE-2026-20245 - Cisco SD-WAN - Draft

Updated: 2 weeks, 5 days ago
0 stars 0 fork 0 watcher
Born at : June 6, 2026, 4:26 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
pendragon360/scaling-lamp

Personal AI system built in Python cybersecurity, OSINT, sports prediction, darknet scanning, and autonomous reasoning.

Python

Updated: 2 weeks, 4 days ago
1 stars 0 fork 0 watcher
Born at : May 28, 2026, 10:26 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
nbajpai-code/tn

tech news

Python

Updated: 2 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : Dec. 3, 2025, 12:31 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
aryancodesit/aryancodesit

None

Updated: 2 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : Nov. 29, 2025, 11 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
ScottyxNova/QMasters-TIA

None

PowerShell Shell

Updated: 2 weeks, 3 days ago
1 stars 0 fork 0 watcher
Born at : Dec. 30, 2024, 12:41 p.m. This repo has been linked 5 different CVEs too.
Profile Photo
Century300/Century300

None

Updated: 2 weeks, 3 days ago
0 stars 0 fork 0 watcher
Born at : Dec. 26, 2021, 5:54 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
nomi-sec/PoC-in-GitHub

📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.

security cve exploit poc vulnerability

Updated: 2 weeks, 3 days ago
7810 stars 1261 fork 1261 watcher
Born at : Dec. 8, 2019, 1:03 p.m. This repo has been linked 718 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-20245 vulnerability anywhere in the article.

  • The Hacker News
Cisco Catalyst SD-WAN Zero-Day CVE-2026-20245 Exploited to Gain Root Access

An unknown threat actor exploited a recently disclosed high-severity security flaw impacting Cisco Catalyst SD-WAN as a zero-day at least two months before it was publicly disclosed, according to new ... Read more

Published Date: Jun 25, 2026 (53 minutes ago)
  • The Hacker News
Cisco Releases Security Updates for Actively Exploited SD-WAN Manager Flaw

Cisco has released security updates for a medium-severity security flaw in Catalyst SD-WAN Manager that has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-20262, ca ... Read more

Published Date: Jun 16, 2026 (1 week, 2 days ago)
  • TheCyberThrone
CISA adds Cisco SD-WAN and LiteSpeed cPanel  to KEV

June 16, 2026CVE-2026-20262 | Cisco Catalyst SD-WAN Manager — Path TraversalCVE-2026-20262 is a directory or path traversal vulnerability in Cisco Catalyst SD-WAN Manager. This class of flaw allows at ... Read more

Published Date: Jun 16, 2026 (1 week, 2 days ago)
  • The Cyber Express
CISA Sets 72-Hour Patch Window for Federal Systems Facing Highest Cyber Risks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has introduced a new risk-based approach to vulnerability remediation, requiring federal civilian agencies to patch the most dangerous ... Read more

Published Date: Jun 11, 2026 (2 weeks ago)
  • TheCyberThrone
CISA KEV Update — Cisco Catalyst SD-WAN, Google Chrome V8 & Arista EOS

CISA added three new vulnerabilities to its Known Exploited Vulnerabilities catalog on June 9, 2026: CVE-2026-20245 (Cisco Catalyst SD-WAN Manager), CVE-2026-11645 (Google Chromium V8), and CVE-2026-7 ... Read more

Published Date: Jun 10, 2026 (2 weeks ago)
  • The Hacker News
CISA Adds Cisco, Chrome, and Arista Flaws to KEV Catalog Amid Active Exploitation

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, following reports of active exploitati ... Read more

Published Date: Jun 10, 2026 (2 weeks ago)
  • The Cyber Express
Microsoft Patches Record 200 Vulnerabilities in June 2026 Patch Tuesday

Microsoft’s June 2026 Patch Tuesday, released on June 10, 2026, addressed 200 security vulnerabilities across Windows, Office, Azure, and related products—the largest single Patch Tuesday release in t ... Read more

Published Date: Jun 10, 2026 (2 weeks ago)
  • The Cyber Express
Indonesian Media Outlet Tempo Targeted by 24.9 Million DDoS Requests

A major wave of cyberattacks on Tempo has disrupted access to one of Indonesia’s leading news websites, with the media outlet reporting millions of malicious requests directed at its servers over seve ... Read more

Published Date: Jun 09, 2026 (2 weeks, 2 days ago)
  • TheCyberThrone
CVE-2026-28318 — SolarWinds Serv-U DoS added to CISA KEV

June 8, 2026CVE: CVE-2026-28318CVSS Score: 7.5 (High)CWE: CWE-400 — Uncontrolled Resource ConsumptionKEV Added: June 5, 2026FCEB Remediation Deadline: June 19, 2026Vulnerability OverviewThe vulnerabil ... Read more

Published Date: Jun 08, 2026 (2 weeks, 2 days ago)
  • The Cyber Express
Cisco Warns of Active Exploitation of Catalyst SD-WAN Flaw With No Patch Available

Cisco has issued an urgent warning that a high-severity vulnerability in its Catalyst SD-WAN Manager platform is being actively exploited in the wild—and no patch exists yet. CVE-2026-20245 allows aut ... Read more

Published Date: Jun 08, 2026 (2 weeks, 2 days ago)
  • TheCyberThrone
TheCyberThrone CyberSecurity Newsletter Top 5 Articles – May 2026

June 7, 2026Welcome to TheCyberThrone cybersecurity month in review will be posted covering the important security happenings. This review is for the month ending May 2026.Subscribers favorite #1PyTor ... Read more

Published Date: Jun 07, 2026 (2 weeks, 3 days ago)
  • TheCyberThrone
CVE-2026-20245 — Cisco Catalyst SD-WAN Manager Privilege Escalation

June 6, 2026The Core FlawCVE-2026-20245 affects the command-line interface of Cisco Catalyst SD-WAN Manager and stems from insufficient validation of user-supplied input. An authenticated local attack ... Read more

Published Date: Jun 06, 2026 (2 weeks, 5 days ago)
  • The Hacker News
Cisco Catalyst SD-WAN Manager CVE-2026-20245 Flaw Actively Exploited – No Patch Available

Cisco has warned that a high-severity security flaw impacting Catalyst SD-WAN Manager has come under active exploitation. The vulnerability, tracked as CVE-2026-20245, carries a CVSS score of 7.8 out ... Read more

Published Date: Jun 06, 2026 (2 weeks, 5 days ago)
  • security.nl
Cisco waarschuwt voor actief misbruikt beveiligingslek in SD-WAN Manager

Cisco waarschuwt voor een actief misbruikt beveiligingslek in Cisco Catalyst SD-WAN Manager waardoor een aanvaller met toegang tot het systeem willekeurige commando's als root kan uitvoeren. Er zijn u ... Read more

Published Date: Jun 05, 2026 (2 weeks, 5 days ago)
  • CybersecurityNews
Cisco SD-WAN Vulnerability Exploited in the Wild to Execute Arbitrary Commands as Root User

Cisco has disclosed a high-severity vulnerability in its Catalyst SD-WAN Manager that is actively being exploited in the wild, allowing attackers to execute arbitrary commands with root privileges. Th ... Read more

Published Date: Jun 05, 2026 (2 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-20245 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jun. 10, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* versions up to (excluding) 20.9.9.1 *cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* versions from (including) 20.12.6 up to (excluding) 20.12.6.2 *cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* versions from (including) 20.13 up to (excluding) 20.15.4.4 *cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* versions from (including) 20.15.5 up to (excluding) 20.15.5.2 *cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* versions from (including) 20.16 up to (excluding) 20.18.2.2 *cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* versions from (including) 26.1 up to (excluding) 26.1.1.1 *cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.7:*:*:*:*:*:*:* *cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* versions from (including) 20.10 up to (excluding) 20.12.5.4 *cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:* versions up to (excluding) 20.9.9.1 *cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:* versions from (including) 20.10 up to (excluding) 20.12.5.4 *cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:* versions from (including) 20.12.6 up to (excluding) 20.12.6.2 *cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:* versions from (including) 20.13 up to (excluding) 20.15.4.4 *cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:* versions from (including) 20.15.5 up to (excluding) 20.15.5.2 *cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:* versions from (including) 20.16 up to (excluding) 20.18.2.2 *cpe:2.3:a:cisco:sd-wan_vsmart_controller:*:*:*:*:*:*:*:* versions from (including) 26.1 up to (excluding) 26.1.1.1 *cpe:2.3:a:cisco:sd-wan_vsmart_controller:20.12.7:*:*:*:*:*:*:*
    Added Reference Type Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx Types: Vendor Advisory
    Added Reference Type Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW Types: Vendor Advisory
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20245 Types: US Government Resource
  • CVE Modified by [email protected]

    Jun. 09, 2026

    Action Type Old Value New Value
    Changed Description A vulnerability in the CLI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user. To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the that was published on May 14, 2026, and verify the configuration of the edge devices. A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user.  To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the that was published on May 14, 2026, and verify the configuration of the edge devices.
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 09, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20245
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Jun. 09, 2026

    Action Type Old Value New Value
    Added Date Added 2026-06-09
    Added Due Date 2026-06-09
    Added Required Action 2026-06-09
    Added Vulnerability Name 2026-06-09
  • New CVE Received by [email protected]

    Jun. 04, 2026

    Action Type Old Value New Value
    Added Description A vulnerability in the CLI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user. To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the that was published on May 14, 2026, and verify the configuration of the edge devices.
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-116
    Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx
    Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact