CVE-2019-4545
mediumpriority · track · 31EPSS 0.021 · 81 %ileEUUSgrimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
2.08% (81st) EPSS
CVSS 4.3 · medium
Who says so?
3 sources
cnnvd · enisa_euvd · nvd
EPSS · scored 2026-10-27
IBM QRadar SIEM 7.3 and 7.4 when configured to use Active Directory Authentication may be susceptible to spoofing attacks. IBM X-Force ID: 165877.
01
cvss
Technical severity, 0–10. One row per scoring source.
7.5
010
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.5
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.07.5highCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@us.ibm.com USexploitability 1.6 · impact 5.9
02
weaknesses
The CWE weakness classes this flaw belongs to.
CWE-287USLLM-inferred
03
affected products (7)
Products and version ranges known to be affected.
- ibm qradar security information and event manager7.3.0 → 7.3.3nvdUScpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:*
- ibm qradar security information and event manager= 7.3.3nvdUScpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:*
- ibm qradar security information and event manager7.4.0 → 7.4.1nvdUScpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:*
04
also known as (3)
Other names and identifiers for this entity.
05
sources
Which sources assert this record, and when.
06
references (10)
External citations — patches, advisories, analysis.
- https://exchange.xforce.ibmcloud.com/vulnerabilities/165877cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-4545cnnvd
- https://vigilance.fr/vulnerability/IBM-QRadar-SIEM-privilege-escalation-via-KDC-Spoofing-33507cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.3485/cnnvd
- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-qradar-siem-is-vulnerable-to-kdc-spoofing-cve-2019-4545/cnnvd
- https://www.ibm.com/support/pages/node/6344077cnnvd
- https://exchange.xforce.ibmcloud.com/vulnerabilities/165877enisa_euvd
- https://www.ibm.com/support/pages/node/6344077enisa_euvd
scry
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan