CVE-2026-21653

Internal-service access via forged server-side requests

Published Jul 23, 2026 · Updated Jul 23, 2026

Server-side request forgery in Johnson Controls victor Web before 7.0 allows attackers to issue HTTP requests to internal services. The application makes server-side HTTP requests to attacker-selected internal targets, but the affected endpoint and validation error are undisclosed. Reachability requires adjacent-network access and no authentication, and successful requests expose internal-service data or enable lateral movement.

CVSS severity7.2
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Johnson Controls victor Web before 7.0 allows attackers to issue HTTP requests to internal services. The application makes server-side HTTP requests to attacker-selected internal targets, but the affected endpoint and validation error are undisclosed. Reachability requires adjacent-network access and no authentication, and successful requests expose internal-service data or enable lateral movement.

The record

CVE
CVE-2026-21653
Published
Jul 23, 2026
Updated
Jul 23, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-918, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2Johnson ControlsCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:L/VA:L/SC:H/SI:H/SA:L
9.6CISACVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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