---
id: "CVE-2026-93442"
kind: "vulnerability"
aliases: ["CVE-2026-93442"]
title: "IBM QRadar SIEM: out-of-bounds read enables denial of service or data leak"
severity: "high"
cvss: 8.2
epss: 0.00303
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["ibm-qradar", "infrastructure", "on-prem", "siem"]
not_affected_if: ["other-versions"]
published_at: "2026-10-20T22:21:07+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T03:03:54+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93442", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-93442", "first_seen_at": "2026-10-24T13:15:55+00:00"}]
---

# IBM QRadar SIEM: out-of-bounds read enables denial of service or data leak

IBM QRadar SIEM versions 7.6.0.0 through 7.6.0.4 and 7.5.0 through 7.5.0 Update Package 16 Interim Fix 001 contain an out-of-bounds read flaw. A remote attacker can crash the service or obtain sensitive information.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed QRadar version in the admin console or with the vendor's version command, and compare it against the affected ranges
- unknown

## Fix

- Move QRadar SIEM to a fixed release from IBM's security bulletin for this CVE; the fixed version is unknown from the sources
- unknown

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-93442
- 2026-10-24T13:15:55+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-93442

## From the sources

IBM QRadar SIEM 7.6.0.0 through 7.6.0.4, and 7.5.0 through 7.5.0 Update Package 16 Interim Fix 001 could allow a remote attacker to cause a denial of service or obtain sensitive information due to an out-of-bounds read.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_