CVE-2018-9234

HIGHNVD 7.57.5—Trending — 4 sources updated this week

7.5

GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 38.0%
KEV: Not listed

Published

April 4, 2018

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://dev.gnupg.org/T3844
cve@mitrehttps://usn.ubuntu.com/3675-1/
af854a3a-2127-422b-91ae-364da2661108https://dev.gnupg.org/T3844
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3675-1/

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	gpgv-udeb (1.4.20-1ubuntu3.2) @ xenial	2026-05-28	ubuntu

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.

Weakness Classification(1)

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

CWE-320

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

UbuntuUSN-3675-1LOW
GnuPG vulnerabilities

Data Freshness Timeline

(refreshed 12× in last 7d / 18× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 09:41 UTCEG score recompute
2026-05-28 09:41 UTCVendor advisory
2026-05-28 09:41 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
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
2026-05-23 20:05 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-9234?

CVE-2018-9234 is a high vulnerability published on April 4, 2018. GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.

When was CVE-2018-9234 disclosed?

CVE-2018-9234 was first published in the National Vulnerability Database on April 4, 2018, 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-2018-9234 actively exploited?

CVE-2018-9234 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 38.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-9234?

CVE-2018-9234 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2018-9234?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-9234, 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-2018-9234

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