CVE-2022-27820

MEDIUMNVD 4.04.0—

4.0

OWASP Zed Attack Proxy (ZAP) through w2022-03-21 does not verify the TLS certificate chain of an HTTPS server.

CVSS v3: 4.0
EG Score: 4.0(medium)
EPSS: 33.2%
KEV: Not listed

Published

March 24, 2022

Last Modified

November 21, 2024

References (7)

cve@mitrehttp://www.openwall.com/lists/oss-security/2022/03/24/3
cve@mitrehttps://github.com/zaproxy/zaproxy/releases
cve@mitrehttps://www.openwall.com/lists/oss-security/2022/03/23/1
nvd@nisthttps://github.com/zaproxy/zaproxy/issues/7165
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/03/24/3
af854a3a-2127-422b-91ae-364da2661108https://github.com/zaproxy/zaproxy/releases
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2022/03/23/1

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
maven	org.zaproxy:zap	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.zaproxy:zap	2.10.0 ... 2.9.0 (8 versions)	—	—

Weakness Classification(1)

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

CWE-295Improper Certificate Validation

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-27820?

CVE-2022-27820 is a medium vulnerability published on March 24, 2022. OWASP Zed Attack Proxy (ZAP) through w2022-03-21 does not verify the TLS certificate chain of an HTTPS server.

When was CVE-2022-27820 disclosed?

CVE-2022-27820 was first published in the National Vulnerability Database on March 24, 2022, 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-2022-27820 actively exploited?

CVE-2022-27820 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-27820?

CVE-2022-27820 has a CVSS v3 base score of 4.0 (NVD).

How do I remediate CVE-2022-27820?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-27820, 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-2022-27820

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CVE-2022-27820

📅 Published

🔄 Last Modified

🔗 References (7)