CVE-2026-51105 Details
Description
Buffer Overflow vulnerability in aMULE-Project aMule v.2.3.3 allows a remote attacker to cause a denial of service via the OP_SERVERMESSAGE Handler.
A heap buffer overflow vulnerability has been identified in aMule version 2.3.3, specifically within the OP_SERVERMESSAGE handler of the CServerSocket class. This vulnerability allows remote e2k servers to send malformed packets that trigger an unsigned integer underflow. The resulting heap buffer overflow can cause application crashes and potentially allow for arbitrary code execution, depending on the state of the heap.
Users are advised to update to aMule version 3.0.0 or later, where this vulnerability has been fixed. The fix involves adding proper size validation for OP_SERVERMESSAGE packets to prevent the unsigned underflow that leads to the buffer overflow.
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 Jul 14, 2026CISA-ADP
Assessed Jul 14, 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/amule-project/amule/issues/445 | CISA-ADP | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/amule-project/amule/issues/445 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-121 | Stack-based Buffer Overflow | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| aMule-Project aMule | 2.3.3 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 14, 2026 | CVE Modified | CISA-ADP |
| Jul 14, 2026 | New CVE Received | [email protected] |