7.5

CVE-2021-20400: ibm qradar_security_information_and_event_manager Inadequate Encryption Strength

CVSS: 7.5v3.1HighModified
Published 01-12-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-20400 is a high (CVSS 7.5) Inadequate Encryption Strength vulnerability in ibm qradar_security_information_and_event_manager. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.69%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-12-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

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: 196074.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

0.69%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

+0.02 pp

From 0.66% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.69%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ibm2 products
  • qradar_security_information_and_event_manager≥ 7.3.0, < 7.3.3 | ≥ 7.4.0, < 7.4.3 | 7.3.3 | 7.3.3:fix_pack_1 | 7.3.3:fix_pack_2 | 7.3.3:fix_pack_3 | 7.3.3:fix_pack_4 | 7.3.3:fix_pack_5 | 7.3.3:fix_pack_6 | 7.3.3:fix_pack_7 | 7.3.3:fix_pack_8 | 7.3.3:fix_pack_9 | 7.4.3 | 7.4.3:fix_pack_1 | 7.4.3:fix_pack_2 | 7.4.3:fix_pack_3
  • qradar siem7.3 | 7.4

1 vendor · 2 products

References

2 links