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EPSS 0.3%top 82%

CVE-2026-20312: Cleartext Storage of Sensitive Information in Cisco Cisco Catalyst SD-WAN Controller

0
High
VulnerabilityCVE-2026-20312cvecve-2026-20312
Published: 08/05/2026 (08/05/2026, 16:31:04 UTC)
Source: CVE Database V5
Vendor/Project: Cisco
Product: Cisco Catalyst SD-WAN Controller

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20312 are related to Cleartext storage of sensitive information issues that are grouped under the Common Weakness Enumeration (CWE) CWE-312.

CVSS v3.1

Score 8.8high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

Cisco

Cisco Catalyst SD-WAN Controller

Affected versions
=20.6.4=20.9.2=20.3.6=20.7.2=20.7.1=20.5.1=20.6.2=19.3.0=20.6.1=17.2.4=18.2.0=18.4.6=19.1.0=19.2.4=19.2.929=18.3.8=18.4.303=18.3.7=18.4.1=19.2.097=19.2.0=19.2.099=18.3.6=20.4.2=19.0.0=20.9.1=20.3.5=20.3.1=18.3.5=20.6.3=18.4.3=18.4.4=18.3.3=17.2.8=20.8.1=19.2.32=19.2.2=17.2.5=18.4.0=20.4.1.1=20.1.3=20.1.2=17.2.10=19.2.098=20.1.1=17.2.6=19.2.1=18.3.4=20.4.1=17.2.9=19.2.31=19.0.1a=18.3.0=17.2.7=18.4.5=20.3.4=20.3.3=20.4.1.2=20.3.2=18.3.1=20.1.12=19.2.3=20.10.1=20.6.5=20.3.7=20.9.3=20.11.1=20.6.3.2=20.4.2.3=20.3.5.1=20.3.4.3=20.9.3.1=20.6.4.1=20.3.3.2=20.6.5.2=20.3.7.1=20.11.1.1=20.10.1.1=20.6.1.2=20.1.3.1=20.9.2.2=20.6.5.3=20.6.3.3=20.3.7.2=20.6.5.4=20.9.2.3=20.9.4=20.12.1=20.3.8=20.6.6=20.12.2=20.13.1=20.9.5=20.12.3=20.6.7=20.9.5.1=20.14.1=20.12.3.1=20.12.4=20.9.6=20.6.8=20.9.5.3=20.12.4.1=20.12.5=20.9.7=20.12.5.1=20.12.5.2=20.9.7.1=20.12.6=20.9.8=20.12.5.3=20.12.6.1=20.9.8.2=20.12.7=20.9.9=20.12.5.4=20.12.7.1=20.12.6.2=20.9.9.1=20.12.7.2=20.9.9.2=20.12.8

Cisco

Cisco Catalyst SD-WAN Manager

Affected versions
=20.1.12=19.2.1=18.4.4=18.4.5=20.1.1.1=20.1.1=19.3.0=19.2.2=19.2.099=18.3.6=18.3.7=19.2.0=18.3.8=19.0.0=19.1.0=18.4.302=18.4.303=19.2.097=19.2.098=17.2.10=18.3.6.1=19.0.1a=18.2.0=18.4.3=18.4.1=17.2.8=18.3.3.1=18.4.0=18.3.1=17.2.6=17.2.9=18.3.4=17.2.5=18.3.1.1=18.3.5=18.4.0.1=18.3.3=17.2.7=17.2.4=18.3.0=19.2.3=18.4.501_ES=20.3.1=20.1.2=19.2.929=19.2.31=20.3.2=19.2.32=20.3.2_925=20.3.2.1=20.3.2.1_927=18.4.6=20.1.2_937=20.4.1=20.3.2_928=20.3.2_929=20.4.1.0.1=20.3.2.1_930=19.2.4=20.5.0.1.1=20.4.1.1=20.3.3=19.2.4.0.1=20.3.2_937=20.3.3.1=20.5.1=20.1.3=20.3.3.0.4=20.3.3.1.2=20.3.3.1.1=20.4.1.2=20.3.3.0.2=20.4.1.1.5=20.4.1.0.01=20.4.1.0.02=20.3.3.1.7=20.3.3.1.5=20.5.1.0.1=20.3.3.1.10=20.3.3.0.8=20.4.2=20.4.2.0.1=20.3.4=20.3.3.0.14=19.2.4.0.8=19.2.4.0.9=20.3.4.0.1=20.3.2.0.5=20.6.1=20.5.1.0.2=20.3.3.0.17=20.6.1.1=20.6.0.18.3=20.3.2.0.6=20.6.0.18.4=20.4.2.0.2=20.3.3.0.16=20.3.4.0.5=20.6.1.0.1=20.3.4.0.6=20.6.2=20.7.1EFT2=20.3.4.0.9=20.3.4.0.11=20.4.2.0.4=20.3.3.0.18=20.7.1=20.6.2.1=20.3.4.1=20.5.1.1=20.4.2.1=20.4.2.1.1=20.3.4.1.1=20.3.813=20.3.4.0.19=20.4.2.2.1=20.5.1.2=20.3.4.2=20.3.814=20.4.2.2=20.6.2.2=20.3.4.2.1=20.7.1.1=20.3.4.1.2=20.6.2.2.2=20.3.4.0.20=20.6.2.2.3=20.4.2.2.2=20.3.5=20.6.2.0.4=20.4.2.2.3=20.3.4.0.24=20.6.2.2.7=20.6.3=20.3.4.2.2=20.4.2.2.4=20.7.1.0.2=20.8.1=20.3.5.0.8=20.3.5.0.9=20.4.2.2.8=20.3.5.0.7=20.6.3.0.7=20.6.3.0.5=20.6.3.0.10=20.6.3.0.2=20.7.2=20.9.1EFT2=20.6.3.0.11=20.6.3.1=20.6.3.0.14=20.6.4=20.9.1=20.6.3.0.19=20.6.3.0.18=20.3.6=20.9.1.1=20.6.3.0.23=20.6.4.0.4=20.6.3.0.25=20.6.5=20.6.3.0.27=20.9.2=20.9.2.1=20.6.3.0.29=20.6.3.0.31=20.6.3.0.32=20.10.1=20.6.3.0.33=20.9.2.0.01=20.9.1_LI_Images=20.10.1_LI_Images=20.9.2_LI_Images=20.3.7=20.9.3=20.6.5.1=20.11.1=20.11.1_LI_Images=20.6.3.1.1=20.9.3.0.2=20.6.5.1.2=20.9.3.0.3=20.4.2.3=20.6.3.2=20.6.4.1=20.6.3.0.38=20.6.3.0.39=20.3.5.1=20.3.4.3=20.9.3.1=20.3.3.2=20.6.5.2=20.3.7.1=20.10.1.1=20.6.5.2.1=20.3.4.0.25=20.6.2.2.4=20.6.1.2=20.11.1.1=20.9.3.0.5=20.3.4.0.26=20.6.5.1.3=20.6.3.0.40=20.1.3.1=20.9.2.2=20.6.5.2.3=20.6.5.1.4=20.6.5.3=20.6.3.0.41=20.9.3.0.7=20.6.5.1.5=20.9.3.0.4=20.6.4.0.19=20.6.5.1.6=20.9.3.0.8=20.6.3.3=20.3.7.2=20.6.5.4=20.6.5.1.7=20.9.3.0.12=20.6.4.2=20.6.5.5=20.9.3.2=20.11.1.2=20.6.3.4=20.10.1.2=20.6.5.1.9=20.9.3.0.16=20.6.3.0.45=20.6.5.1.10=20.9.3.0.17=20.6.5.2.4=20.6.4.0.21=20.9.3.0.18=20.6.3.0.46=20.6.3.0.47=20.9.2.3=20.9.3.2_LI_Images=20.9.3.0.21=20.9.3.0.20=20.9.4_LI_Images=20.9.4=20.6.5.1.11=20.12.1=20.12.1_LI_Images=20.6.5.1.13=20.9.3.0.23=20.6.5.2.8=20.9.4.1=20.9.4.1_LI_Images=20.9.3.0.25=20.9.3.0.24=20.6.5.1.14=20.3.8=20.6.6=20.9.3.0.26=20.6.3.0.51=20.9.3.0.29=20.12.2=20.12.2_LI_Images=20.6.6.0.1=20.13.1_LI_Images=20.9.4.0.4=20.13.1=20.9.4.1.1=20.9.5=20.9.5_LI_Images=20.12.3_LI_Images=20.12.3=20.9.4.1.3=20.6.7=20.9.5.1=20.9.5.1_LI_Images=20.9.4.1.6=20.14.1=20.14.1_LI_Images=20.9.5.2=20.9.5.2.1=20.9.5.2_LI_Images=20.12.3.1=20.12.4=20.9.5.1.4=20.9.5.2.7=20.9.5.2.13=20.9.6=20.9.6_LI_Images=20.9.5.2.14=20.6.8=20.12.4.0.03=20.12.4_LI_Images=20.9.5.2.16=20.12.4.0.4=20.12.401=20.9.5.3=20.9.5.3_LI_Images=20.12.4.1_LI_Images=20.12.4.1=20.9.5.2.21=20.9.6.0.3=20.12.4.0.6=20.12.4_Monthly_ES5=20.12.5=20.12.5_LI_Images=20.9.7=20.12.501=20.12.5.1_LI_Images=20.12.5.1=20.12.5.2_LI_Images=20.12.5.2=20.9.7.1=20.12.6_LI_Images=20.12.6=20.12.5.1.01=20.9.8=20.9.8_LI_Images=20.12.6.1=20.12.6.1_LI_Images=20.12.5.3=20.12.5.3_LI_Images=20.9.8.2_LI_Images=20.9.8.2=20.12.7=20.12.7_LI_Images=20.9.9=20.9.9_LI_Images=20.12.5.4=20.12.7.1_LI_Images=20.12.6.2_LI_Images=20.12.7.1=20.12.6.2=20.9.9.1_LI_Images=20.9.9.1=20.12.7.2_LI_Images=20.12.7.2=20.9.9.2=20.9.9.2_LI_Images=20.12.8=20.12.8_LI_Images

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/15/2026, 13:18:50 UTC

Technical Analysis

The vulnerability CVE-2026-20312 pertains to the cleartext storage of sensitive information within Cisco Catalyst SD-WAN Controller software. This weakness, categorized under CWE-312, was discovered internally by Cisco during a comprehensive security review. The flaw affects many specific versions of the product, as enumerated in the affectedVersions list. The CVSS 3.1 base score is 8.8, reflecting network attack vector, low attack complexity, required privileges, no user interaction, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available to confirm remediation status.

Potential Impact

Exploitation of this vulnerability could lead to unauthorized disclosure of sensitive information due to its cleartext storage, potentially compromising confidentiality, integrity, and availability of the affected system. The high CVSS score (8.8) reflects the severity of the impact if exploited. However, there are no known exploits in the wild at this time.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, organizations should monitor Cisco advisories for updates and consider limiting access to affected systems to trusted personnel only.

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Technical Details

Data Version
5.2
Assigner Short Name
cisco
Date Reserved
2025-10-08T11:59:15.409Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a736b62bf8831d5392da521

Added to database: 08/05/2026, 16:57:06 UTC

Last enriched: 08/15/2026, 13:18:50 UTC

Last updated: 09/18/2026, 10:01:30 UTC

Views: 51

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