IBM QRadar SIEM Out-of-bounds Read: DoS and Information Disclosure
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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 (CWE-125). A remote attacker can exploit it without authentication to cause a denial of service or obtain sensitive information. CVSS 3.1 base score is 8.2 (HIGH). CISA's SSVC rates technical impact as partial and the flaw as automatable, with no exploitation observed and no CISA KEV listing.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | QRadar | 7.6.0.0 – 7.6.0.4; 7.5.0 – 7.5.0 Update Package 16 Interim Fix 001 | — | No fix listed | CNA |
- QRadar VendorIBM Affected 7.6.0.0 – 7.6.0.4; 7.5.0 – 7.5.0 Update Package 16 Interim Fix 001 Fixed in — No fix listed CNA
CPE names CNA · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.6.0.0:*:*:*:*:*:*:* | 7.6.0.0 | — | IBM |
| cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.6.0.4:*:*:*:*:*:*:* | 7.6.0.4 | — | IBM |
| cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:*:*:*:*:*:*:* | 7.5.0 | — | IBM |
| cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_package_16_interim_fix_001:*:*:*:*:*:* | 7.5.0 update_package_16_interim_fix_001 | — | IBM |
- cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.6.0.0:*:*:*:*:*:*:* Versions 7.6.0.0 — ·IBM
- cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.6.0.4:*:*:*:*:*:*:* Versions 7.6.0.4 — ·IBM
- cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:*:*:*:*:*:*:* Versions 7.5.0 — ·IBM
- cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_package_16_interim_fix_001:*:*:*:*:*:* Versions 7.5.0 update_package_16_interim_fix_001 — ·IBM
Remediation
IBM has not listed a fixed version for the affected QRadar SIEM releases. Restrict network access to QRadar SIEM until IBM publishes a fix, and monitor IBM's security bulletins for an update.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-21 Threatist record created from CVE-2026-93442
- 2026-10-21 Alias added: GHSA-cqc2-7346-rqqh
- 2026-10-21 CISA SSVC decision points changed
- 2026-10-21 Priority changed: MEDIUM → LOW
- 2026-10-22 Priority changed: LOW → MEDIUM
References
More IBM vulnerabilities
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- TI-2017-03639 Improper handling of exceptional conditions in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-93442 · CVE Program
- CVE-2026-93442 · NVD
- FIRST EPSS
- GHSA-cqc2-7346-rqqh · GitHub Advisory Database · CC BY 4.0
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