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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2026-21655

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

CVSS 8.7 · HighBuzz score 28.9

Buzz score

Why this CVE is surfacing

Buzz score total 28.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 13.9 · diversity 15.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
13.9
3 evidence mentions in the snapshot
Diversity score
15.0
3 sources across 3 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
2
within the 30d window
Peak daily
2
highest bucket

Evidence

Source links by recency

Newest mentions first
3 source links · newest first
  • https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisorieswww.johnsoncontrols.com

    No excerpt available.

    Vendor Advisorywww.johnsoncontrols.comJul 23, 2026, 9:17 PM
  • Johnson Controls C-CURE 9000 and Victor application serverCISA Alerts

    l Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: Ireland Vulnerabilities Expand All + CVE-2026-21655 Under certain circumstances, successful exploitation of this vulnerability could allow an unauthenticated attacker on the adjacent network to achieve arbitrary code execution on the C-CURE 9000 or victor application ser

    governmentwww.cisa.govJul 23, 2026, 12:00 PM
  • February 2026 Patch Tuesday: Six new and actively exploited Microsoft vulnerabilities addressedCSO Online

    Microsoft highlighted six new and actively exploited vulnerabilities among the 60 fixes issued in today’s February Patch Tuesday releases. However, Tyler Reguly, associate director of security R&D at Fortra, says there’s good news: The issues are easy to resolve with regular Microsoft patches for Windows and Office, and none require any post patch configuration steps. […]

    newswww.csoonline.comFeb 11, 2026, 1:30 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

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