How severe is CVE-2021-44886?

CVE-2021-44886 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-44886 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44886?

CVE-2021-44886 affects Zammad. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-44886?

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

When was CVE-2021-44886 published?

CVE-2021-44886 was published on 2022-02-04 and last updated on 2026-06-17.

CVE-2021-44886

CVE-2021-44886 is a medium-severity vulnerability in Zammad with a CVSS 3.x base score of 5.3. 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 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Zammad
Published: 2022-02-04
Last modified: 2026-06-17

Description

In Zammad 5.0.2, agents can configure "out of office" periods and substitute persons. If the substitute persons didn't have the same permissions as the original agent, they could receive ticket notifications for tickets that they have no access to.

Frequently asked questions

What is CVE-2021-44886?: In Zammad 5.0.2, agents can configure "out of office" periods and substitute persons. If the substitute persons didn't have the same permissions as the original agent, they could receive ticket notifications for tickets that they have no access to.
How severe is CVE-2021-44886?: CVE-2021-44886 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-44886 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44886?: CVE-2021-44886 affects Zammad. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-44886?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-44886 published?: CVE-2021-44886 was published on 2022-02-04 and last updated on 2026-06-17.

References

https://zammad.com/en/advisories/zaa-2021-21

Affected products (1)

cpe:2.3:a:zammad:zammad:5.0.2:*:*:*:*:*:*:*

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