Is CVE-2022-40817 in the CISA KEV catalog?

No. CVE-2022-40817 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-40817?

CVE-2022-40817 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2022-40817?

CVE-2022-40817 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-40817?

Upgrade zammad to 5.2.2 or later.

CVE & CISA-KEV Catalog

CVE-2022-40817

MEDIUM

4.3

CVSS v3

NVD

Description

Zammad 5.2.1 has a fine-grained permission model that allows to configure read-only access to tickets. However, agents were still wrongly able to perform some operations on such tickets, like adding and removing links, tags. and related answers. This issue has been fixed in 5.2.2.

CWE-732Incorrect Permission Assignment for Critical Resource

How to fix

Remediation Available

zammadNVD

Affected:>= 5.2.0, < 5.2.2Fixed in:5.2.2CVE-2022-40817derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Vendor Advisory1

zammad.com

Related Vulnerabilities

Other CWE-732 (Incorrect Permission Assignment for Critical Resource) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-3923	Critical	9.8	89%	-	Fix
CVE-2018-15379	Critical	9.8	86%	-	-
CVE-2018-1000207	High	7.2	64%	-	-
CVE-2023-32986	High	8.8	63%	-	-
CVE-2021-44521	Critical	9.1	55%	-	Fix
CVE-2018-13374	Medium	4.3	38%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-21.