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CVE-2026-1698

HTTP Host header vulnerability in WebClient and WebScheduler web apps

Published: Feb 26, 2026Updated: Jul 9, 2026 Sources: CVE List NVDCWE-644
6.1MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 89.4%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available
Self-Check
OpenVAS

Description

A HTTP Host header attack vulnerability affects WebClient and the WebScheduler web apps of PcVue in version 15.0.0 through 16.3.3 included, allowing a remote attacker to inject harmful payloads that manipulate server-side behavior. This vulnerability only affects the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback and /Authentication/Logout of the WebClient and WebScheduler web apps.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-644

Affected Products

arcinfo
commercialaka plantvue, frontvue, pcvue
PcVueOn-prem
ICS / OT / IoT / plc-scada-hmi
and 1 more affected products View all →

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Is your org exposed to CVE-2026-1698?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://www.pcvue.com/security/#SB2026-2
pcvue.com

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