What is CVE-2021-21000?

CVE-2021-21000 is a medium-severity vulnerability in Wago 750-8202, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2021-05-24.

How severe is CVE-2021-21000?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in Wago 750-8202

CVE-2021-21000

On WAGO PFC200 devices in different firmware versions with special crafted packets an attacker with network access to the device could cause a denial of service for the login service of the runtime.

EPSS: 0.010 (59.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Wago 750-8202
Wago 750-8202_firmware
Wago 750-8203
Wago 750-8203_firmware
Wago 750-8204
Wago 750-8204_firmware
Wago 750-8206
Wago 750-8206_firmware
Wago 750-8207
Wago 750-8207_firmware

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

info@cert.vde.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-21000?: CVE-2021-21000 is a medium-severity vulnerability in Wago 750-8202, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2021-05-24.
How severe is CVE-2021-21000?: Medium severity. CVSS v3 base score is 5.3 out of 10.