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01 Record

CVE-2021-20995

WAGO: Managed Switches: Storage of user credentials in a cookie

MediumPUBLISHEDCNA: CERTVDE
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

02 Description

WAGO: Managed Switches: Storage of user credentials in a cookie

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.54% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 45.2% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-05-13 13:45Z5 YR AGO
Last updated
2024-09-17 04:24Z2 YR AGO
Reserved
2020-12-17
Assigning CNA
CERTVDE
Record state
PUBLISHED
Severity
Medium (CVSS 5.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
  • CWE-312Cleartext Storage of Sensitive InformationBase
Data version
5.1
Document digest
fb84041e480bf6eb44fb8f8dc8531fa34e3c47fd3370d6f1637660d15cfd6c92

05 Affected products

VendorProductVersionsPlatforms
WAGO0852-0303<= V1.2.3.S0—
WAGO0852-1305<= V1.1.7.S0—
WAGO0852-1505<= V1.1.6.S0—
WAGO0852-1305/000-001<= V1.0.4.S0—
WAGO0852-1505/000-001<= V1.0.4.S0—

06 References

07 Remediation

The Web-Based Management is only needed during installation and commissioning, not during normal operations. It is recommended to disable the web server after commissioning. The Command Line Interface (CLI) is an alternative for commissioning the device. This is the easiest and securest way to protect your device from the listed vulnerabilities. Regardless of the action described above, the vulnerabilities are fixed with following firmware releases: Item number [FW version] 0852-0303 (HW < 3)* [V1.2.5.S0] Detailed information about the hardware version is described in the installation guide. 0852-0303 (HW >=3)* [V1.2.3.S1] Detailed information about the hardware version is described in the installation guide. 0852-1305 [V1.1.8.S0] 0852-1505 [V1.1.7.S0] 0852-1305/000-001 [V1.1.4.S0] 0852-1505/000-001 [V1.1.4.S0]