10

CVE-2021-20998: wago 0852-0303_firmware

CVSS: 10.0v3.1CriticalModified
Published 13-05-2021Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2021-20998 is a critical (CVSS 10.0) vulnerability in wago 0852-0303_firmware. EPSS estimates a 1.11% chance of exploitation in the next 30 days, higher than 65.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.11%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-05-2021
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

In multiple managed switches by WAGO in different versions without authorization and with specially crafted packets it is possible to create users.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.11%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

0.00 pp

From 1.11% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.11%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Wago5 products

1 vendor · 5 products

References

1 links