IBM QRadar SIEM 7.3 and 7.4 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive inf…

published 2021-09-15 5y ago modified 2026-06-17 4mo ago also EUVD-2021-16224

cvss: 5.9; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits: 0; none known

IBM QRadar SIEM 7.3 and 7.4 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 201778.

Patch / fix

links 1

ibm.com/support/pages/node/6488945 advisory

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Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.9	CVSS:3.0/S:U/A:N/UI:N/AV:N/C:H/AC:H/I:N/PR:N/RC:C/E:U/RL:O
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.0	5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

IBM QRadar SIEM

Classification

Weakness

CWE-327 Use of a Broken or Risky Cryptographic Algorithm

References

ibm.com /support/pages/node/6488945
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/201778
vdb-entry, vendor-advisory

Sources

CVE List CVE-2021-29750
NVD CVE-2021-29750

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