Read the docs
TI-2021-04103 Aliases CVE-2021-20997GHSA-9w62-6mhp-433w

WAGO: Managed Switches: Unauthorized access to password hashes

Priority LOW 35CWE-522Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-522.

Summary

In multiple managed switches by WAGO in different versions it is possible to read out the password hashes of all Web-based Management users.

Why it matters now

EPSS 0.01016 63rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
WAGO0852-0303up to V1.2.3.S0—No fix listedCNA
WAGO0852-1305up to V1.1.7.S0—No fix listedCNA
WAGO0852-1505up to V1.1.6.S0—No fix listedCNA
WAGO0852-1305/000-001up to V1.0.4.S0—No fix listedCNA
WAGO0852-1505/000-001up to V1.0.4.S0—No fix listedCNA
  • 0852-0303 VendorWAGO Affected up to V1.2.3.S0 Fixed in — No fix listed CNA
  • 0852-1305 VendorWAGO Affected up to V1.1.7.S0 Fixed in — No fix listed CNA
  • 0852-1505 VendorWAGO Affected up to V1.1.6.S0 Fixed in — No fix listed CNA
  • 0852-1305/000-001 VendorWAGO Affected up to V1.0.4.S0 Fixed in — No fix listed CNA
  • 0852-1505/000-001 VendorWAGO Affected up to V1.0.4.S0 Fixed in — No fix listed CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:wago:0852-0303_firmware:*:*:*:*:*:*:*:*up to 1.2.3.s0VulnerableWAGO
cpe:2.3:h:wago:0852-0303:-:*:*:*:*:*:*:*not specified by NVDRunning onWAGO
cpe:2.3:o:wago:0852-1305_firmware:*:*:*:*:*:*:*:*up to 1.1.7.s0VulnerableWAGO
cpe:2.3:h:wago:0852-1305:-:*:*:*:*:*:*:*not specified by NVDRunning onWAGO
cpe:2.3:o:wago:0852-1505_firmware:*:*:*:*:*:*:*:*up to 1.1.6.s0VulnerableWAGO
cpe:2.3:h:wago:0852-1505:-:*:*:*:*:*:*:*not specified by NVDRunning onWAGO
cpe:2.3:o:wago:0852-1305\/000-001_firmware:*:*:*:*:*:*:*:*up to 1.0.4.s0VulnerableWAGO
cpe:2.3:h:wago:0852-1305\/000-001:-:*:*:*:*:*:*:*not specified by NVDRunning onWAGO
cpe:2.3:o:wago:0852-1505\/000-001_firmware:*:*:*:*:*:*:*:*up to 1.0.4.s0VulnerableWAGO
cpe:2.3:h:wago:0852-1505\/000-001:-:*:*:*:*:*:*:*not specified by NVDRunning onWAGO
  • cpe:2.3:o:wago:0852-0303_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.3.s0 Vulnerable ·WAGO
  • cpe:2.3:h:wago:0852-0303:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
  • cpe:2.3:o:wago:0852-1305_firmware:*:*:*:*:*:*:*:* Versions up to 1.1.7.s0 Vulnerable ·WAGO
  • cpe:2.3:h:wago:0852-1305:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
  • cpe:2.3:o:wago:0852-1505_firmware:*:*:*:*:*:*:*:* Versions up to 1.1.6.s0 Vulnerable ·WAGO
  • cpe:2.3:h:wago:0852-1505:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
  • cpe:2.3:o:wago:0852-1305\/000-001_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.4.s0 Vulnerable ·WAGO
  • cpe:2.3:h:wago:0852-1305\/000-001:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
  • cpe:2.3:o:wago:0852-1505\/000-001_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.4.s0 Vulnerable ·WAGO
  • cpe:2.3:h:wago:0852-1505\/000-001:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20997
  2. 2026-10-03 Alias added: GHSA-9w62-6mhp-433w

References

Advisory 1

  • TI-2021-04104 WAGO: Managed Switches: Unauthorized creation of user accounts CVSS 3.1CRITICAL 10.0
  • TI-2021-04100 WAGO: Managed Switches: Reflected Cross-site Scripting CVSS 3.1HIGH 8.8
  • TI-2021-04101 WAGO: Managed Switches: Storage of user credentials in a cookie CVSS 3.1HIGH 7.5
  • TI-2021-04102 WAGO: Managed Switches: Unsecure Cookie settings CVSS 3.1MEDIUM 5.3
  • TI-2021-04099 WAGO: Managed Switches: Exposure of sensitive information through directory listing CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences