How severe is CVE-2026-1698?

CVE-2026-1698 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-1698 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1698?

CVE-2026-1698 affects Arcinfo Pcvue. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1698?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-1698 have an EU (EUVD) identifier?

Yes. CVE-2026-1698 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8842.

When was CVE-2026-1698 published?

CVE-2026-1698 was published on 2026-02-26 and last updated on 2026-07-09.

CVE-2026-1698

CVE-2026-1698 is a medium-severity vulnerability in Arcinfo Pcvue with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-644.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 5.3
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8842
Weakness: CWE-644
Affected product: Arcinfo Pcvue
Published: 2026-02-26
Last modified: 2026-07-09

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.

Frequently asked questions

What is CVE-2026-1698?: 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.
How severe is CVE-2026-1698?: CVE-2026-1698 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-1698 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1698?: CVE-2026-1698 affects Arcinfo Pcvue. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1698?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1698 have an EU (EUVD) identifier?: Yes. CVE-2026-1698 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8842.
When was CVE-2026-1698 published?: CVE-2026-1698 was published on 2026-02-26 and last updated on 2026-07-09.

References

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

Affected products (1)

cpe:2.3:a:arcinfo:pcvue:*:*:*:*:*:*:*:*

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