CVE-2026-3994 Details
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.
A heap-based buffer overflow vulnerability has been identified in rui314 mold versions through 2.40.4. The issue arises in the Object File Handler component, specifically within the function 'mold::ObjectFile<mold::X86_64>::initialize_sections' in 'src/input-files.cc'. This vulnerability requires local exploitation and has been publicly disclosed, with an available proof-of-concept exploit.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 12, 2026CISA-ADP
Assessed Mar 12, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/oneafter/0209/blob/main/mo2/repro | [email protected] | Exploit |
| https://github.com/rui314/mold/ | [email protected] | ProductSource CodeVendor |
| https://github.com/rui314/mold/issues/1548 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/?ctiid.350476 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/?id.350476 | [email protected] | AdvisoryExploitPartial ContentVendor |
| https://vuldb.com/?submit.769772 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-122 | Heap-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| rui314 mold | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 12, 2026 | New CVE Received | [email protected] |