Description
VMime through 0.9.2 contains an integer underflow in the uuEncoder::decode function that allows remote attackers to trigger a stack-based buffer overflow via crafted uuencoded MIME parts. Attackers can send an email with a uuencoded line whose length character is 'b' but is not a 'begin' line, corrupting stack memory to crash the application or potentially execute code.
Published: 2026-10-26
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 28 Oct 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Kisli
Kisli vmime
Vendors & Products Kisli
Kisli vmime

Tue, 27 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
Description VMime through 0.9.2 contains an integer underflow in the uuEncoder::decode function that allows remote attackers to trigger a stack-based buffer overflow via crafted uuencoded MIME parts. Attackers can send an email with a uuencoded line whose length character is 'b' but is not a 'begin' line, corrupting stack memory to crash the application or potentially execute code.
Title VMime through 0.9.2 Stack-Based Buffer Overflow via uuencode Decoder
Weaknesses CWE-121
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-27T14:16:56.633Z

Reserved: 2026-10-26T20:23:36.081Z

Link: CVE-2026-116738

cve-icon Vulnrichment

Updated: 2026-10-27T13:52:11.827Z

cve-icon NVD

Status : Deferred

Published: 2026-10-26T22:16:58.090

Modified: 2026-10-27T16:04:22.707

Link: CVE-2026-116738

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T22:18:52Z

Weaknesses
  • CWE-121

    Stack-based Buffer Overflow