CVE-2026-43863

LOWNVD 3.73.7—

3.7

mutt before 2.3.2 has an infinite loop in data_object_to_stream in crypt-gpgme.c.

CVSS v3: 3.7
EG Score: 3.7(high)
EPSS: 13.8%
KEV: Not listed

Published

May 4, 2026

Last Modified

May 5, 2026

References (1)

cve@mitrehttps://github.com/muttmua/mutt/commit/fdc04a171777327218a1e78db504926c388b48c4

Weakness Classification(1)

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

CWE-253

Data Freshness Timeline

(refreshed 12× in last 7d / 17× 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.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-21 22:43 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 14:38 UTCEG score recompute
2026-05-20 14:38 UTCGHSA enrichment
2026-05-20 11:22 UTCepss_batch

Frequently asked(5)

What is CVE-2026-43863?

CVE-2026-43863 is a low vulnerability published on May 4, 2026. mutt before 2.3.2 has an infinite loop in dataobjectto_stream in crypt-gpgme.c.

When was CVE-2026-43863 disclosed?

CVE-2026-43863 was first published in the National Vulnerability Database on May 4, 2026, with the most recent update on May 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-43863 actively exploited?

CVE-2026-43863 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-43863?

CVE-2026-43863 has a CVSS v3 base score of 3.7 (NVD).

How do I remediate CVE-2026-43863?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43863, 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

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CVE-2026-43863

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-43863?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)