How severe is CVE-2022-29700?

CVE-2022-29700 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-2022-29700 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29700?

CVE-2022-29700 affects Zammad. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-29700?

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-2022-29700 published?

CVE-2022-29700 was published on 2022-04-27 and last updated on 2026-06-17.

CVE-2022-29700

CVE-2022-29700 is a high-severity vulnerability in Zammad 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-521.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-521
Affected product: Zammad
Published: 2022-04-27
Last modified: 2026-06-17

Description

A lack of password length restriction in Zammad v5.1.0 allows for the creation of extremely long passwords which can cause a Denial of Service (DoS) during password verification.

Frequently asked questions

What is CVE-2022-29700?: A lack of password length restriction in Zammad v5.1.0 allows for the creation of extremely long passwords which can cause a Denial of Service (DoS) during password verification.
How severe is CVE-2022-29700?: CVE-2022-29700 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-2022-29700 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29700?: CVE-2022-29700 affects Zammad. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-29700?: 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-2022-29700 published?: CVE-2022-29700 was published on 2022-04-27 and last updated on 2026-06-17.

References

https://zammad.com/en/advisories/zaa-2022-03

Affected products (1)

cpe:2.3:a:zammad:zammad:5.1.0:*:*:*:*:*:*:*

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