Cisco Catalyst SD-WAN Manager up to 20.18.2_LI_Images incorrect privileged apis

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Cisco Catalyst SD-WAN Manager. It has been declared as critical. Affected is an unknown function. The manipulation results in incorrect use of privileged apis. This vulnerability was named CVE-2026-20122. The attack may be performed from remote. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cisco Catalyst SD-WAN Manager. Affected is some unknown processing. The manipulation with an unknown input leads to a incorrect use of privileged apis vulnerability. CWE is classifying the issue as CWE-648. The product does not conform to the API requirements for a function call that requires extra privileges. This could allow attackers to gain privileges by causing the function to be called incorrectly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system. This vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.

The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is traded as CVE-2026-20122 since 10/08/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are unknown but an exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/21/2026).

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 299999 (Cisco Catalyst SD-WAN Manager Multiple Vulnerabilities (cisco-sa-sdwan-authbp-qwCX8D4v)), which helps to determine the existence of the flaw in a target environment. This issue was added on 04/20/2026 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 04/23/2026:

Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL l

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (299999) and CERT Bund (WID-SEC-2026-0516). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Cisco Catalyst SD-WAN Manager

Productinfo

Type

• Network Management Software

Vendor

• Cisco

Name

• Catalyst SD-WAN Manager

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
• 18.3.3
• 18.3.3.1
• 18.3.4
• 18.3.5
• 18.3.6
• 18.3.6.1
• 18.3.7
• 18.3.8
• 18.4.0
• 18.4.0.1
• 18.4.1
• 18.4.3
• 18.4.4
• 18.4.5
• 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
• 19.2.098
• 19.2.099
• 19.2.1
• 19.2.2
• 19.2.3
• 19.2.4
• 19.2.4.0.1
• 19.2.4.0.8
• 19.2.4.0.9
• 19.2.31
• 19.2.32
• 19.2.929
• 19.3.0
• 20.1.1
• 20.1.1.1
• 20.1.2
• 20.1.2_937
• 20.1.3
• 20.1.3.1
• 20.1.12
• 20.3.1
• 20.3.2
• 20.3.2.0.5
• 20.3.2.0.6
• 20.3.2.1
• 20.3.2.1_927
• 20.3.2.1_930
• 20.3.2_925
• 20.3.2_928
• 20.3.2_929
• 20.3.2_937
• 20.3.3
• 20.3.3.0.2
• 20.3.3.0.4
• 20.3.3.0.8
• 20.3.3.0.14
• 20.3.3.0.16
• 20.3.3.0.17
• 20.3.3.0.18
• 20.3.3.1
• 20.3.3.1.1
• 20.3.3.1.2
• 20.3.3.1.5
• 20.3.3.1.7
• 20.3.3.1.10
• 20.3.3.2
• 20.3.4
• 20.3.4.0.1
• 20.3.4.0.5
• 20.3.4.0.6
• 20.3.4.0.9
• 20.3.4.0.11
• 20.3.4.0.19
• 20.3.4.0.20
• 20.3.4.0.24
• 20.3.4.0.25
• 20.3.4.0.26
• 20.3.4.1
• 20.3.4.1.1
• 20.3.4.1.2
• 20.3.4.2
• 20.3.4.2.1
• 20.3.4.2.2
• 20.3.4.3
• 20.3.5
• 20.3.5.0.7
• 20.3.5.0.8
• 20.3.5.0.9
• 20.3.5.1
• 20.3.6
• 20.3.7
• 20.3.7.1
• 20.3.7.2
• 20.3.8
• 20.3.813
• 20.3.814
• 20.4.1
• 20.4.1.0.01
• 20.4.1.0.02
• 20.4.1.0.1
• 20.4.1.1
• 20.4.1.1.5
• 20.4.1.2
• 20.4.2
• 20.4.2.0.1
• 20.4.2.0.2
• 20.4.2.0.4
• 20.4.2.1
• 20.4.2.1.1
• 20.4.2.2
• 20.4.2.2.1
• 20.4.2.2.2
• 20.4.2.2.3
• 20.4.2.2.4
• 20.4.2.2.8
• 20.4.2.3
• 20.5.0.1.1
• 20.5.1
• 20.5.1.0.1
• 20.5.1.0.2
• 20.5.1.1
• 20.5.1.2
• 20.6.0.18.3
• 20.6.0.18.4
• 20.6.1
• 20.6.1.0.1
• 20.6.1.1
• 20.6.1.2
• 20.6.2
• 20.6.2.0.4
• 20.6.2.1
• 20.6.2.2
• 20.6.2.2.2
• 20.6.2.2.3
• 20.6.2.2.4
• 20.6.2.2.7
• 20.6.3
• 20.6.3.0.2
• 20.6.3.0.5
• 20.6.3.0.7
• 20.6.3.0.10
• 20.6.3.0.11
• 20.6.3.0.14
• 20.6.3.0.18
• 20.6.3.0.19
• 20.6.3.0.23
• 20.6.3.0.25
• 20.6.3.0.27
• 20.6.3.0.29
• 20.6.3.0.31
• 20.6.3.0.32
• 20.6.3.0.33
• 20.6.3.0.38
• 20.6.3.0.39
• 20.6.3.0.40
• 20.6.3.0.41
• 20.6.3.0.45
• 20.6.3.0.46
• 20.6.3.0.47
• 20.6.3.0.51
• 20.6.3.1
• 20.6.3.1.1
• 20.6.3.2
• 20.6.3.3
• 20.6.3.4
• 20.6.4
• 20.6.4.0.4
• 20.6.4.0.19
• 20.6.4.0.21
• 20.6.4.1
• 20.6.4.2
• 20.6.5
• 20.6.5.1
• 20.6.5.1.2
• 20.6.5.1.3
• 20.6.5.1.4
• 20.6.5.1.5
• 20.6.5.1.6
• 20.6.5.1.7
• 20.6.5.1.9
• 20.6.5.1.10
• 20.6.5.1.11
• 20.6.5.1.13
• 20.6.5.1.14
• 20.6.5.2
• 20.6.5.2.1
• 20.6.5.2.3
• 20.6.5.2.4
• 20.6.5.2.8
• 20.6.5.3
• 20.6.5.4
• 20.6.5.5
• 20.6.6
• 20.6.6.0.1
• 20.6.7
• 20.6.8
• 20.7.1
• 20.7.1.0.2
• 20.7.1.1
• 20.7.1EFT2
• 20.7.2
• 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
• 20.9.2.2
• 20.9.2.3
• 20.9.2_LI_Images
• 20.9.3
• 20.9.3.0.2
• 20.9.3.0.3
• 20.9.3.0.4
• 20.9.3.0.5
• 20.9.3.0.7
• 20.9.3.0.8
• 20.9.3.0.12
• 20.9.3.0.16
• 20.9.3.0.17
• 20.9.3.0.18
• 20.9.3.0.20
• 20.9.3.0.21
• 20.9.3.0.23
• 20.9.3.0.24
• 20.9.3.0.25
• 20.9.3.0.26
• 20.9.3.0.29
• 20.9.3.1
• 20.9.3.2
• 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
• 20.9.5.3_LI_Images
• 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_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_LI_Images
• 20.12.6
• 20.12.6_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_LI_Images
• 20.16.1
• 20.16.1_LI_Images
• 20.18.1
• 20.18.1_LI_Images
• 20.18.2
• 20.18.2_LI_Images

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

CNA Base Score: 5.4
CNA Vector (cisco): 🔒

CVSSv2info

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: 🔍

Exploitinginfo

Class: Incorrect use of privileged apis
CWE: CWE-648
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Attacked

EPSS Score: 🔒
EPSS Percentile: 🔒

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

Nessus ID: 299999
Nessus Name: Cisco Catalyst SD-WAN Manager Multiple Vulnerabilities (cisco-sa-sdwan-authbp-qwCX8D4v)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/08/2025 CVE reserved
02/25/2026 +140 days Advisory disclosed
02/25/2026 +0 days VulDB entry created
04/21/2026 +55 days VulDB entry last update

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-sdwan-authbp-qwCX8D4v
Status: Confirmed

CVE: CVE-2026-20122 (🔒)
GCVE (CVE): GCVE-0-2026-20122
GCVE (VulDB): GCVE-100-347808
CERT Bund: WID-SEC-2026-0516 - Cisco Catalyst SD-WAN Manager und SD-WAN Controller: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/25/2026 17:50
Updated: 04/21/2026 18:06
Changes: 02/25/2026 17:50 (63), 02/26/2026 12:37 (6), 02/28/2026 19:08 (2), 02/28/2026 21:38 (1), 03/04/2026 22:53 (11), 03/06/2026 11:57 (1), 04/21/2026 01:19 (12), 04/21/2026 18:06 (1)
Complete: 🔍
Cache ID: 216::103

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