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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. (CVE-2026-51105)

0
Medium
Published: 07/14/2026 (07/14/2026, 15:17:00 UTC)
Source: GCVE Database
Product: amule

Description

A buffer overflow vulnerability exists in aMULE-Project aMule version 2.3.3 and related builds, allowing a remote attacker to cause a denial of service via the OP_SERVERMESSAGE Handler. The vulnerability has a CVSS score of 7.5, indicating a medium severity impact focused on availability disruption without confidentiality or integrity loss.

CVSS v3.1

Score 7.5high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

Ubuntu:16.04:LTSmore threats →ghsa
amule
pkg:deb/ubuntu/amule?arch=source&distro=xenial
Affected versions
=2.3.1+git1a369e47-3build1=2.4.0~git20151120.0023527bc2-1=2.4.0~git20151120.0023527bc2-1ubuntu1
Ubuntu:18.04:LTSmore threats →ghsa
amule
pkg:deb/ubuntu/amule?arch=source&distro=bionic
Affected versions
=1:2.3.2-1build2=1:2.3.2-1build3=1:2.3.2-2
Ubuntu:22.04:LTSmore threats →ghsa
amule
pkg:deb/ubuntu/amule?arch=source&distro=jammy
Affected versions
=1:2.3.3-1=1:2.3.3-2
Ubuntu:24.04:LTSmore threats →ghsa
amule
pkg:deb/ubuntu/amule?arch=source&distro=noble
Affected versions
=1:2.3.3-3build1=1:2.3.3-3build4=1:2.3.3-3build5
Ubuntu:26.10more threats →ghsa
amule
pkg:deb/ubuntu/amule?arch=source&distro=stonking
Affected versions
=1:2.3.3-3.2=1:2.3.3-4=1:2.3.3-4.1=1:3.0.1-1
Ubuntu:26.04:LTSmore threats →ghsa
amule
pkg:deb/ubuntu/amule?arch=source&distro=resolute
Affected versions
=1:2.3.3-3.2

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/18/2026, 00:56:44 UTC

Technical Analysis

CVE-2026-51105 describes a buffer overflow vulnerability in the OP_SERVERMESSAGE Handler of aMULE-Project aMule version 2.3.3 and several related builds. This flaw allows a remote attacker to trigger a denial of service condition by exploiting the buffer overflow, causing the application to crash or become unresponsive. The vulnerability does not affect confidentiality or integrity but impacts availability. No known exploits are reported in the wild, and no patch or remediation details are provided in the available data.

Potential Impact

The vulnerability enables remote attackers to cause denial of service by crashing the aMULE application through a buffer overflow in the OP_SERVERMESSAGE Handler. There is no indication of data compromise or privilege escalation. The impact is limited to availability disruption.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor communications for updates. Until a fix is available, consider restricting network access to trusted sources if feasible to reduce exposure.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-51105
Osv Schema Version
1.7.0
Ecosystems
["Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.10","Ubuntu:26.04:LTS"]
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6ad3f60a2cdf04f6566640ec

Added to database: 10/17/2026, 22:26:18 UTC

Last enriched: 10/18/2026, 00:56:44 UTC

Last updated: 10/18/2026, 00:56:44 UTC

Views: 2

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