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CVE-2026-43863

Published: May 4, 2026Updated: May 5, 2026 Sources: CVE List NVDCWE-253
NVD MITRE
3.7CVSSLOW
EPSS Score
0.2%
Top 90.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

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

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-253

Affected Products

muttmutt
On-prem
Communications / email-server-client
muttoss-projectUSCommunicationsaka mutt mail client

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://github.com/muttmua/mutt/commit/fdc04a171777327218a1e78db504926c388b48c4
github.com

Timeline

Published
May 4, 2026
Last Updated
May 5, 2026

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