CVE-2021-34561

8.8 highEPSS 0.9%

High (8.8) in pepperl-fuchs. EPSS 0.9% chance of exploitation in the next 30 days.

In PEPPERL+FUCHS WirelessHART-Gateway <= 3.0.8 serious issue exists, if the application is not externally accessible or uses IP-based access restrictions. Attackers can use DNS Rebinding to bypass any IP or firewall based access restrictions that may be in place, by proxying through their target's browser.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-350
Published: 2021-08-31
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

pepperl-fuchs:wha-gw-f2d2-0-as-z2-eth.eip_firmware
pepperl-fuchs:wha-gw-f2d2-0-as-z2-eth_firmware

References

https://cert.vde.com/en-us/advisories/vde-2021-027
https://cert.vde.com/en-us/advisories/vde-2021-027

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