Cyber Resilience

CVE-2021-34559

Medium

Published: 31 August 2021

Published
31 August 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS Score 0.0031 54.8th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-34559 is a medium-severity HTTP Request/Response Smuggling (CWE-444) vulnerability in Pepperl-Fuchs Wha-Gw-F2D2-0-As-Z2-Eth Firmware. Its CVSS base score is 5.4 (Medium).

Operationally, ranked in the top 45.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

In PEPPERL+FUCHS WirelessHART-Gateway <= 3.0.8 a vulnerability may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings.

CWE(s)
CWE-444

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

pepperl-fuchs
wha-gw-f2d2-0-as-z2-eth firmware
≤ 3.0.8
pepperl-fuchs
wha-gw-f2d2-0-as-z2-eth.eip firmware
≤ 3.0.8

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References