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Message-ID: <c72c9a6c-d415-4828-a307-dbfaa8a1bd1f@oracle.com>
Date: Fri, 9 Jan 2026 12:15:06 -0800
From: Alan Coopersmith <alan.coopersmith@...cle.com>
To: oss-security@...ts.openwall.com
Subject: Net-SNMP snmptrapd vulnerability [CVE-2025-68615]
https://github.com/net-snmp/net-snmp/security/advisories/GHSA-4389-rwqf-q9gq
advises:
> Net-SNMP snmptrapd vulnerability
>
> hardaker published GHSA-4389-rwqf-q9gq Dec 22, 2025
>
> Package: Net-SNMP
> Affected versions: All
> Patched versions: 5.9.5, 5.10.pre2
>
> Description
> ===========
>
> Impact
> -------
> A specially crafted packet to an net-snmp snmptrapd daemon can cause a
> buffer overflow and the daemon to crash.
>
> Patches
> -------
> Users of Net-SNMP's snmptrapd should upgrade immediately to Net-SNMP 5.9.5 or
> 5.10.pre2.
>
> Other workarounds
> -----------------
>
> SNMP ports should never be open to public networks. There is no mitigation
> available other than ensuring ports to snmptrapd are appropriately firewalled
> or by upgrading to the most recent versions of the Net-SNMP software:
> 5.9.5 or 5.10.pre2.
>
> CVE Identifier
> --------------
> This has been assigned a CVE identifier of CVE-2025-68615.
>
> Credits
> -------
> This vulnerability was discovered by:
> buddurid working with Trend Micro Zero Day Initiative
>
> Severity: Critical 9.8 / 10
> CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
https://www.zerodayinitiative.com/advisories/ZDI-25-1181/ further notes:
> This vulnerability allows remote attackers to execute arbitrary code
> on affected installations of Net-SNMP. Authentication is not required
> to exploit this vulnerability.
>
> The specific flaw exists within the SnmpTrapd service, which listens
> on UDP port 162 by default. The issue results from the lack of proper
> validation of the length of user-supplied data prior to copying it to
> a fixed-length stack-based buffer. An attacker can leverage this
> vulnerability to execute code in the context of the service account.
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