CVE-2021-42137

MEDIUMNVD 5.35.3—

5.3

An issue was discovered in Zammad before 5.0.1. In some cases, there is improper enforcement of the privilege requirement for viewing a list of tickets that shows title, state, etc.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 42.3%
KEV: Not listed

Published

October 11, 2021

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://zammad.com/en/advisories/zaa-2021-19
af854a3a-2127-422b-91ae-364da2661108https://zammad.com/en/advisories/zaa-2021-19

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:46 UTCepss_batch
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2026-06-05 22:45 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch

Frequently asked(5)

What is CVE-2021-42137?

CVE-2021-42137 is a medium vulnerability published on October 11, 2021. An issue was discovered in Zammad before 5.0.1. In some cases, there is improper enforcement of the privilege requirement for viewing a list of tickets that shows title, state, etc.

When was CVE-2021-42137 disclosed?

CVE-2021-42137 was first published in the National Vulnerability Database on October 11, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-42137 actively exploited?

CVE-2021-42137 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-42137?

CVE-2021-42137 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2021-42137?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42137, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-42137

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Is Your Infrastructure Affected by CVE-2021-42137?

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Frequently asked(5)

What is CVE-2021-42137?

When was CVE-2021-42137 disclosed?

Is CVE-2021-42137 actively exploited?

What is the CVSS score of CVE-2021-42137?

CVE-2021-42137 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2021-42137?

CVE-2021-42137

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-42137?

CVE-2021-42137

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-42137?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

Published

Last Modified

References (2)

Frequently asked(5)

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