CVE-2026-103678

A flaw was found in tnef. An attacker can exploit this vulnerability by providing a specially crafted file containing uncompressed Rich Text Format (RTF) data. Because the application fails to properly validate input buffer boundaries before copying data in get_rtf_data_from_buf(), reading beyond the allocated memory occurs. This flaw can cause the application to crash, leading to a Denial of Service (DoS), or leak sensitive memory contents into extracted output files.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-103678	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2544476	Issue Tracking Third Party Advisory
https://github.com/verdammelt/tnef	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:tnef_project:tnef:*:*:*:*:*:*:*:*

History

05 Oct 2026, 14:25

Type	Values Removed	Values Added
First Time		Tnef Project tnef Tnef Project
CPE		cpe:2.3:a:tnef_project:tnef::::::::
References	~~() https://access.redhat.com/security/cve/CVE-2026-103678 -~~	() https://access.redhat.com/security/cve/CVE-2026-103678 - Third Party Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2544476 -~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2544476 - Issue Tracking, Third Party Advisory
References	~~() https://github.com/verdammelt/tnef -~~	() https://github.com/verdammelt/tnef - Product

01 Oct 2026, 12:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 12:17

Updated : 2026-10-05 14:25

NVD link : CVE-2026-103678

Mitre link : CVE-2026-103678

CVE.ORG link : CVE-2026-103678

JSON object : View

Products Affected

tnef_project

tnef

CWE

CWE-125

Out-of-bounds Read

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