How severe is CVE-2020-4511?

CVE-2020-4511 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-4511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4511?

CVE-2020-4511 primarily affects Ibm Qradar Security Information And Event Manager. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4511?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-4511 published?

CVE-2020-4511 was published on 2020-07-14 and last updated on 2026-06-17.

CVE-2020-4511

CVE-2020-4511 is a medium-severity vulnerability in Ibm Qradar Security Information And Event Manager with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Qradar Security Information And Event Manager
Published: 2020-07-14
Last modified: 2026-06-17

Description

IBM QRadar SIEM 7.3 and 7.4 could allow an authenticated user to cause a denial of service of the qflow process by sending a malformed sflow command. IBM X-Force ID: 182366.

Frequently asked questions

What is CVE-2020-4511?: IBM QRadar SIEM 7.3 and 7.4 could allow an authenticated user to cause a denial of service of the qflow process by sending a malformed sflow command. IBM X-Force ID: 182366.
How severe is CVE-2020-4511?: CVE-2020-4511 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-4511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4511?: CVE-2020-4511 primarily affects Ibm Qradar Security Information And Event Manager. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4511?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4511 published?: CVE-2020-4511 was published on 2020-07-14 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:-:*:*:*:*:*:*
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p1:*:*:*:*:*:*
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p2:*:*:*:*:*:*
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p3:*:*:*:*:*:*
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.0:-:*:*:*:*:*:*
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.0:p1:*:*:*:*:*:*
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.0:p2:*:*:*:*:*:*

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