CVE-2026-12004Network attack vectorHinoki check available

Privileged data disclosure and interruption via format string

Published Aug 12, 2026 · Updated Aug 12, 2026

Format string injection in IBM Verify Identity Access allows remote authenticated users to disclose data or interrupt services via crafted HTTP requests. The management interface passes attacker-controlled request content to a formatting operation, so format directives can expose memory or disrupt processing; IBM has not identified the specific handler. High management privileges are required, and the affected appliance and container lines are 10.0 through 10.0.9.2 and 11.0 through 11.0.3.

CVSS severity8.7
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Format string injection in IBM Verify Identity Access allows remote authenticated users to disclose data or interrupt services via crafted HTTP requests. The management interface passes attacker-controlled request content to a formatting operation, so format directives can expose memory or disrupt processing; IBM has not identified the specific handler. High management privileges are required, and the affected appliance and container lines are 10.0 through 10.0.9.2 and 11.0 through 11.0.3.

The record

CVE
CVE-2026-12004
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
IBM
Product
IBM Security Verify Access
Classifications
CWE-134, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0 <=10.0.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

IBM · IBM Security Verify Accessversion=10.0 <=10.0.9.2
IBM · IBM Security Verify Access Containerversion=10.0 <=10.0.9.2
IBM · IBM Verify Identity Access Containerversion=11.0 <=11.0.3
IBM · IBM Verify Identity Accessversion=11.0 <=11.0.3

Published CVSS scores

8.7IBM CNACVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H
6.5IBM Security BulletinCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String
T1499.004Application or System Exploitation

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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