Cisco Catalyst SD-WAN Manager up to 26.1.1_LI_Images API Endpoint path traversal
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.8 | $0-$5k | 7.99 |
Summary
A vulnerability was found in Cisco Catalyst SD-WAN Manager and classified as critical. This vulnerability affects unknown code of the component API Endpoint. Such manipulation leads to path traversal. This vulnerability is traded as CVE-2026-20262. The attack may be launched remotely. Furthermore, there is an exploit available. It is suggested to upgrade the affected component.
Details
A vulnerability was found in Cisco Catalyst SD-WAN Manager. It has been rated as critical. Affected by this issue is an unknown code of the component API Endpoint. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability. CVE summarizes:
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system. This vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least a lower-privileged, single-task user account.
The advisory is available at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2026-20262 since 10/08/2025. The exploitation is known to be easy. The attack may be launched remotely. Technical details are unknown but an exploit is available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/16/2026). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.
It is declared as attacked. This issue was added on 06/15/2026 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 06/29/2026:
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOUpgrading eliminates this vulnerability.
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Product
Type
Vendor
Name
Version
- 17.2.4
- 17.2.5
- 17.2.6
- 17.2.7
- 17.2.8
- 17.2.9
- 17.2.10
- 18.2.0
- 18.3.0
- 18.3.1
- 18.3.1.1
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- 18.3.3.1
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- 18.4.0
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- 18.4.6
- 18.4.302
- 18.4.303
- 18.4.501_ES
- 19.0.0
- 19.0.1a
- 19.1.0
- 19.2.0
- 19.2.097
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- 20.3.8
- 20.3.813
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- 20.5.0.1.1
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- 20.6.8
- 20.7.1
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- 20.7.1.1
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- 20.8.1
- 20.9.1
- 20.9.1.1
- 20.9.1EFT2
- 20.9.1_LI_Images
- 20.9.2
- 20.9.2.0.01
- 20.9.2.1
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- 20.9.2.3
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- 20.9.3
- 20.9.3.0.2
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- 20.9.3.0.29
- 20.9.3.1
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- 20.9.3.2_LI_Images
- 20.9.3_LI_ Images
- 20.9.4
- 20.9.4.0.4
- 20.9.4.1
- 20.9.4.1.1
- 20.9.4.1.3
- 20.9.4.1.6
- 20.9.4.1_LI_Images
- 20.9.4_LI_Images
- 20.9.5
- 20.9.5.1
- 20.9.5.1.4
- 20.9.5.1_LI_Images
- 20.9.5.2
- 20.9.5.2.1
- 20.9.5.2.7
- 20.9.5.2.13
- 20.9.5.2.14
- 20.9.5.2.16
- 20.9.5.2.21
- 20.9.5.2_LI_Images
- 20.9.5.3
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- 20.9.5_LI_Images
- 20.9.6
- 20.9.6.0.3
- 20.9.6_LI_Images
- 20.9.7
- 20.9.7.1
- 20.9.7.1_LI _Images
- 20.9.7_LI _Images
- 20.9.8
- 20.9.8.2
- 20.9.8.2_LI_Images
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- 20.9.9
- 20.9.9.1
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- 20.9.9_LI_Images
- 20.10.1
- 20.10.1.1
- 20.10.1.2
- 20.10.1_LI_Images
- 20.11.1
- 20.11.1.1
- 20.11.1.2
- 20.11.1_LI_Images
- 20.12.1
- 20.12.1_LI_Images
- 20.12.2
- 20.12.2_LI_Images
- 20.12.3
- 20.12.3.1
- 20.12.3_LI_Images
- 20.12.4
- 20.12.4.0.03
- 20.12.4.0.4
- 20.12.4.0.6
- 20.12.4.1
- 20.12.4.1_LI_Images
- 20.12.4_LI_Images
- 20.12.4_Monthly_ES5
- 20.12.5
- 20.12.5.1
- 20.12.5.1.01
- 20.12.5.1_LI_Images
- 20.12.5.2
- 20.12.5.2_LI_Images
- 20.12.5.3
- 20.12.5.3_LI_Images
- 20.12.5.4
- 20.12.5.4_LI_ Images
- 20.12.5_LI_Images
- 20.12.6
- 20.12.6.1
- 20.12.6.1_LI_Images
- 20.12.6.2
- 20.12.6.2_LI_Images
- 20.12.6_LI_Images
- 20.12.7
- 20.12.7.1
- 20.12.7.1_LI_Images
- 20.12.7_LI_Images
- 20.12.401
- 20.12.501
- 20.13.1
- 20.13.1_LI_Images
- 20.14.1
- 20.14.1_LI_Images
- 20.15.1
- 20.15.1_LI_Images
- 20.15.2
- 20.15.2_LI_Images
- 20.15.3
- 20.15.3.1
- 20.15.4
- 20.15.4.1
- 20.15.4.1_LI_Images
- 20.15.4.2
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- 20.15.4.3
- 20.15.4.3_LI_Images
- 20.15.4.4
- 20.15.4.4_LI_Images
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- 20.15.5
- 20.15.5.1
- 20.15.5.1_LI_Images
- 20.15.5.2
- 20.15.5.2_LI_Images
- 20.15.5_LI_Images
- 20.16.1
- 20.16.1_LI_Images
- 20.18.1
- 20.18.1_LI_Images
- 20.18.2
- 20.18.2.1
- 20.18.2.1_LI_Images
- 20.18.2.2
- 20.18.2.2_LI_Images
- 20.18.2_LI_Images
- 20.18.3
- 20.18.3_LI_Images
- 26.0.1
- 26.1.1
- 26.1.1.1
- 26.1.1.1_LI_Images
- 26.1.1_LI_Images
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.8
VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 6.5
CNA Vector (cisco): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Path traversalCWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Attacked
KEV Added: 🔒
KEV Due: 🔒
KEV Remediation: 🔒
KEV Ransomware: 🔒
KEV Notice: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Timeline
10/08/2025 CVE reserved06/15/2026 Advisory disclosed
06/15/2026 VulDB entry created
06/16/2026 VulDB entry last update
Sources
Vendor: cisco.comAdvisory: cisco-sa-sdwan-arbfw-c2rZvQ
Status: Confirmed
CVE: CVE-2026-20262 (🔒)
GCVE (CVE): GCVE-0-2026-20262
GCVE (VulDB): GCVE-100-370934
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 06/15/2026 21:11Updated: 06/16/2026 01:37
Changes: 06/15/2026 21:11 (65), 06/16/2026 01:37 (12)
Complete: 🔍
Cache ID: 216::103
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