Vulnerability · CVE-2025-33121
IBM QRadar SIEM 7.5 through 7.5.0 Update Package 12 is vulnerable to an XML external entity injection (XXE) attack when processing XML data.
Published Jun 19, 2025 · catalog updated Aug 24, 2025 · IBM QRadar SIEM
Last checked Oct 27, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-33121. EPSS is 0.48%. Act only if a listed version of IBM QRadar SIEM is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-36007 · High
- CVE-2025-0164 · Low
- CVE-2025-36042 · Medium
- CVE-2025-33120 · High
- CVE-2025-33118 · Medium
- Severity
- High7.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.48%
- Remediation
- Vendor / distro source
- Affected products
- vendor IBM QRadar SIEM 7.5 ≤7.5.0 Update Pack 12
IBM QRadar SIEM 7.5 through 7.5.0 Update Package 12 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor IBM QRadar SIEM 7.5 ≤7.5.0 Update Pack 127.5 ≤7.5.0 Update Pack 12
How to fix CVE-2025-33121
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 7.5 ≤7.5.0 Update Pack 12
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-33121. EPSS is 0.48%. Act only if a listed version of IBM QRadar SIEM is installed.
Which versions are affected?
Compare what you have installed with IBM QRadar SIEM 7.5 ≤7.5.0 Update Pack 12 7.5 ≤7.5.0 Update Pack 12. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.48%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jun 19, 2025 · EUVD
Detected
IBM QRadar SIEM 7.5 through 7.5.0 Update Package 12 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
Aug 24, 2025 · EUVD
Updated
IBM QRadar SIEM 7.5 through 7.5.0 Update Package 12 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
Sources
- CVE.orgVulnerability recordCVE-2025-33121
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-33121
30-day exploitation probability 0.48%
first.org - EUVDVulnerability recordEUVD-2025-25647
IBM QRadar SIEM 7.5 through 7.5.0 Update Package 12 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 24, 2026
- CVE.orgOct 21, 2026
- EUVDOct 19, 2026