CVE-2026-116739

VMime through 0.9.2 Uninitialized Stack Memory Disclosure via uuencode Decoder

Published Oct 26, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
VMime through 0.9.2 contains an information disclosure vulnerability in the uuEncoder::decode function that writes uninitialized stack memory into decoded output for over-long lines. Attackers can send a crafted uuencode or x-uuencode MIME part with a large line length byte to leak up to 15 bytes of stack contents per line in decoded attachments.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Kisli
Kisli vmime
Vendors & Products Kisli
Kisli vmime
Type Values Removed Values Added
Description VMime through 0.9.2 contains an information disclosure vulnerability in the uuEncoder::decode function that writes uninitialized stack memory into decoded output for over-long lines. Attackers can send a crafted uuencode or x-uuencode MIME part with a large line length byte to leak up to 15 bytes of stack contents per line in decoded attachments.
Title VMime through 0.9.2 Uninitialized Stack Memory Disclosure via uuencode Decoder
Weaknesses CWE-908
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 4, 2026, 3:18 PM
Reserved
Oct 26, 2026, 8:23 PM
Status
Deferred
Published
Oct 26, 2026, 10:16 PM
Modified
Nov 4, 2026, 4:17 PM