CVE-2026-21655

C-CURE 9000 and Victor application server - Deserialization of Untrusted Data

HIGH

8.7

CVSS Score

Published: July 23, 2026 at 08:13 PM UTC

Updated: October 24, 2026 at 01:10 PM UTC

3 products affected across 2 vendorsC•CURE 9000victor Application ServerVictor

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Severity

HIGH8.7

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

Deserialization of untrusted data vulnerability in Johnson Control victor on Windows allows capec-586. This issue affects victor: from 2.9 before 3.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Victor · Johnson Control

90%

0 ≤ v < 8.00

Affected range stops below 8.0, so it looks safe — our inference, not a vendor statement

C•CURE 9000 · Johnsoncontrols

90%

0 ≤ v < 3.20

Affected range stops below 3.2, so it looks safe — our inference, not a vendor statement

victor Application Server · Johnsoncontrols

90%

0 ≤ v < 4.10

Affected range stops below 4.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

References (1)

Vendor Advisory

Source: cverecord

https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHjci

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-502

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