How severe is CVE-2020-22650?

CVE-2020-22650 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 none, integrity none, and availability high.

Is CVE-2020-22650 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-22650?

CVE-2020-22650 affects Att Alienvault Ossim. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-22650?

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-2020-22650 published?

CVE-2020-22650 was published on 2021-07-19 and last updated on 2026-06-17.

CVE-2020-22650

CVE-2020-22650 is a high-severity vulnerability in Att Alienvault Ossim 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-401.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Att Alienvault Ossim
Published: 2021-07-19
Last modified: 2026-06-17

Description

A memory leak vulnerability in sim-organizer.c of AlienVault Ossim v5 causes a denial of service (DOS) via a system crash triggered by the occurrence of a large number of alarm events.

Frequently asked questions

What is CVE-2020-22650?: A memory leak vulnerability in sim-organizer.c of AlienVault Ossim v5 causes a denial of service (DOS) via a system crash triggered by the occurrence of a large number of alarm events.
How severe is CVE-2020-22650?: CVE-2020-22650 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 none, integrity none, and availability high.
Is CVE-2020-22650 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-22650?: CVE-2020-22650 affects Att Alienvault Ossim. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-22650?: 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-2020-22650 published?: CVE-2020-22650 was published on 2021-07-19 and last updated on 2026-06-17.

References

https://github.com/jpalanco/alienvault-ossim/issues/4

Affected products (1)

cpe:2.3:a:att:alienvault_ossim:5.0:*:*:*:*:*:*:*

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