CVE-2020-16088

CRITICALNVD 9.89.8—

9.8

iked in OpenIKED, as used in OpenBSD through 6.7, allows authentication bypass because ca.c has the wrong logic for checking whether a public key matches.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 75.3%
KEV: Not listed

Published

July 28, 2020

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://ftp.openbsd.org/pub/OpenBSD/patches/6.7/common/014_iked.patch.sig
cve@mitrehttps://github.com/openbsd/src/commit/7afb2d41c6d373cf965285840b85c45011357115
cve@mitrehttps://github.com/xcllnt/openiked/commits/master
cve@mitrehttps://www.openiked.org/security.html
af854a3a-2127-422b-91ae-364da2661108https://ftp.openbsd.org/pub/OpenBSD/patches/6.7/common/014_iked.patch.sig
af854a3a-2127-422b-91ae-364da2661108https://github.com/openbsd/src/commit/7afb2d41c6d373cf965285840b85c45011357115
af854a3a-2127-422b-91ae-364da2661108https://github.com/xcllnt/openiked/commits/master
af854a3a-2127-422b-91ae-364da2661108https://www.openiked.org/security.html

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-27 00:48 UTCEG score recompute
2026-05-27 00:48 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:48 UTCepss_batch

Frequently asked(5)

What is CVE-2020-16088?

CVE-2020-16088 is a critical vulnerability published on July 28, 2020. iked in OpenIKED, as used in OpenBSD through 6.7, allows authentication bypass because ca.c has the wrong logic for checking whether a public key matches.

When was CVE-2020-16088 disclosed?

CVE-2020-16088 was first published in the National Vulnerability Database on July 28, 2020, 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-2020-16088 actively exploited?

CVE-2020-16088 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-16088?

CVE-2020-16088 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-16088?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-16088, 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-2020-16088

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CVE-2020-16088

📅 Published

🔄 Last Modified

🔗 References (8)