CVE-2026-3994

MEDIUM

mold up to 2.40.4 - Heap-Based Buffer Overflow in Object File Handler

Title source: llm
STIX 2.1

Description

A vulnerability was detected in rui314 mold up to 2.40.4. This issue affects the function mold::ObjectFilemold::X86_64::initialize_sections of the file src/input-files.cc of the component Object File Handler. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

References (6)

Core 6
Core References
Permissions Required, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.350476
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.350476
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.769772
Issue Tracking issue-tracking
https://github.com/rui314/mold/issues/1548
Various Sources product
https://github.com/rui314/mold/

Scores

CVSS v3 5.3
EPSS 0.0002
EPSS Percentile 5.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-119 CWE-122
Status published
Published Mar 12, 2026
Tracked Since Mar 12, 2026