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CVE-2019-4545

20
FAUCET Score

CVE-2019-4545 describes a spoofing vulnerability affecting IBM QRadar SIEM versions 7.3 and 7.4 when configured for Active Directory Authentication. This flaw carries a CVSSv3 score of 7.5 (High), indicating a significant risk where an unauthenticated attacker could achieve high integrity impact over the network with low attack complexity. While the vulnerability is not listed in CISA's KEV catalog and no public exploit code (Metasploit, Nuclei, ExploitDB) is available, it has garnered some community discussion and media coverage, including an article from Threatpost, suggesting awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.3.0, <= 7.3.3CPE matchmatch criteria
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:*
>= 7.4.0, <= 7.4.1CPE matchmatch criteria
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:general_availability:*:*:*
7.3.3CPE matchmatch criteria
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p1:*:*:*:*:*:*
7.3.3CPE matchmatch criteria
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p2:*:*:*:*:*:*
7.3.3CPE matchmatch criteria
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.08%
Probability of exploitation in next 30 days
EPSS Percentile
79.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0208 is in the 64th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/165877
VDB EntryVendor Advisory
ibm.com / support/pages/node/6344077
PatchVendor Advisory