VulnSocial

CVE-2026-21655Disclosure

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Deserialization of untrusted data vulnerability in Johnson Control victor on Windows, Johnson Controls CCure 9000, and Johnson Controls Victor Application Server allows capec-586. This issue affects victor: before 8.0; CCure 9000: before 3.2; Victor Application Server: before 4.1.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 4 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 4 signals
  • Disclosure: 3 classified signals
  • Peaked 1d ago at 2 mentions (2026-07-24); latest day: 1
  • 4 total mentions across 3 days

Deep dive

Activity timeline4 mentions / 3d
01122Mentions · 2026-07-23: 1Mentions · 2026-07-24: 2Mentions · 2026-07-29: 1Patch / Workaround · 2026-07-23: 1Technical Details · 2026-07-23: 1Technical Details · 2026-07-24: 2Technical Details · 2026-07-29: 107-2307-2407-29
Signal classification2 categories
Disclosure
375.0%
Patch
125.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-07-231
Patch1
2026-07-242
Disclosure2
2026-07-291
Disclosure1
Full discourse4 posts
  • Daily CyberSecurity@Daily_CyberSec
    Disclosure

    A C-CURE 9000 vulnerability chain hits CVSS 9.6. CVE-2026-21655 allows remote code execution on Johnson Controls victor application servers. #CCURE9000 #CVE202621655 #JohnsonControls #ICSSecurity http://securityonline.info/c-cure-9000-cve-2026-21655/

    Post summary

    The post announces the discovery of CVE‑2026‑21655, a high‑severity RCE vulnerability in Johnson Controls C‑CURE 9000 application servers, providing basic technical details but no evidence of exploitation or patch availability.

    00000414
    12.6K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* 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. https://www.cve.org/CVERecord?id=CVE-2026-21655 ----- Traducción: CVE-2026-21655 Deserialización de d… http://infoflow.cloud`

    Post summary

    An announcement of CVE‑2026‑21655, a deserialization vulnerability affecting Johnson Control victor 2.9 and earlier, is provided with product and version details, but no PoC, exploit, or patch is mentioned.

    0000034
    94 followersView on X
  • CVE@CVEnew
    Disclosure

    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. https://www.cve.org/CVERecord?id=CVE-2026-21655

    Post summary

    The post introduces CVE‑2026‑21655 as a deserialization vulnerability in Johnson Control victor 2.9 on Windows, providing technical details but no PoC, exploit, patch, or evidence of active exploitation.

    00000682
    57.9K followersView on X
  • Windows Forum@windowsforum
    Patch

    🚨 C•CURE 9000 and victor have an unauthenticated adjacent-network RCE flaw. Upgrade to 3.20—because your physical security system shouldn’t become the easiest way in. https://windowsforum.com/threads/cve-2026-21655-upgrade-c-cure-9000-and-victor-to-3-20.440186/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsServerSecurity #Cve202621655 #CCure9000 #VictorSecurity https://t.co/w64uNUtuyA

    Post summary

    The post highlights an unauthenticated adjacent‑network remote code execution vulnerability in C•CURE 9000 and Victor and urges users to upgrade to version 3.20.

    0000052
    1.3K followersView on X

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