CVE-2025-33121 | IBM QRadar SIEM XML external entity injection

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.

Published: 2025-06-19 Last update: 2025-07-25 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-33121 is rated Moderate Risk (52.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.56%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-33121

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-15 0.16% 0.56% +0.39%
2 2026-01-13 0.12% 0.16% +0.04%
3 2025-11-21 — 0.12% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-33121

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.8 4.2 [email protected]

Weakness enumeration for CVE-2025-33121

Affected software / configurations for CVE-2025-33121

Vendor Product Version Raw CPE
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:-:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_1:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_10:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_11:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_12:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_2:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_3:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_4:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_5:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_6:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_7:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_8:*:*:*:*:*:*
ibm qradar_security_information_and_event_manager 7.5.0 cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.5.0:update_pack_9:*:*:*:*:*:*

References for CVE-2025-33121

cvelogic Threat Intelligence