How to Fix CVE-2026-1698: PcVue (Bundle Sibling)
By Sai Kiran Pandrala. Last verified: 2026-05-25.
CVE-2026-1698 is a sibling vulnerability in the same vendor advisory as CVE-2026-1692. Apply the same patched build and you close both. The technical detail below is what differs.
| Severity | 5.3 (Medium) |
|---|---|
| Actively exploited? | No public listing in CISA KEV |
| Affected | PcVue 16.0.0 to <=16.3.3; PcVue 15.0.0 to <=15.2.13 |
| Fixed in | Same patched build as CVE-2026-1692 |
| Type (CWE) | CWE-644 Improper Neutralization of HTTP Headers for Scripting Syntax |
What's different about 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 to fix CVE-2026-1698
Apply the patched build per the primary write-up: How to Fix CVE-2026-1692. All commands, verification steps, and rollback notes for PcVue are listed there.
Frequently asked questions
Does the CVE-2026-1692 patch close CVE-2026-1698?
Yes. Both CVEs are addressed by the same vendor patch. Applying the patched build closes the full bundle.
Is CVE-2026-1698 listed in CISA KEV?
No public KEV listing at the time of this writing.
Where is the official advisory?
See https://www.pcvue.com/security/#SB2026-2
References
- Official vendor advisory: https://www.pcvue.com/security/#SB2026-2
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1698
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- Primary: How to Fix CVE-2026-1692
*Written by Sai Kiran Pandrala. Part of the PcVue bundle. Full procedure at how-to-fix-cve-2026-1692.*