How severe is CVE-2020-4159?

CVE-2020-4159 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-4159 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4159?

CVE-2020-4159 primarily affects Ibm Qradar Network Security. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4159?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-4159 published?

CVE-2020-4159 was published on 2022-07-12 and last updated on 2026-06-17.

CVE-2020-4159

CVE-2020-4159 is a high-severity vulnerability in Ibm Qradar Network Security with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Ibm Qradar Network Security
Published: 2022-07-12
Last modified: 2026-06-17

Description

IBM QRadar Network Security 5.4.0 and 5.5.0 discloses sensitive information to unauthorized users which could be used to mount further attacks against the system. IBM X-Force ID: 174339.

Frequently asked questions

What is CVE-2020-4159?: IBM QRadar Network Security 5.4.0 and 5.5.0 discloses sensitive information to unauthorized users which could be used to mount further attacks against the system. IBM X-Force ID: 174339.
How severe is CVE-2020-4159?: CVE-2020-4159 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-4159 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4159?: CVE-2020-4159 primarily affects Ibm Qradar Network Security. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4159?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-4159 published?: CVE-2020-4159 was published on 2022-07-12 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:ibm:qradar_network_security:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:qradar_network_security:5.5.0:*:*:*:*:*:*:*

More vulnerabilities in Ibm Qradar Network Security

CVE-2017-1458 — High (CVSS 8.1): IBM QRadar Network Security 5.4 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data.…
CVE-2020-4157 — High (CVSS 7.5): IBM QRadar Network Security 5.4.0 and 5.5.0 contains hard-coded credentials, such as a password or cryptographic key,…
CVE-2017-1491 — High (CVSS 7.5): IBM QRadar Network Security 5.4 supports interaction between multiple actors and allows those actors to negotiate which…
CVE-2017-1457 — Medium (CVSS 6.1): IBM QRadar Network Security 5.4 is vulnerable to cross-site scripting. This vulnerability allows users to embed…
CVE-2020-4160 — Medium (CVSS 5.9): IBM QRadar Network Security 5.4.0 and 5.5.0 could allow a remote attacker to obtain sensitive information, caused by…
CVE-2020-4152 — Medium (CVSS 5.9): IBM QRadar Network Security 5.4.0 and 5.5.0 transmits sensitive or security-critical data in cleartext in a…

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