CVE-2018-18065
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception...
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
- Record
CVE-2018-18065- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
- Record
CVE-2018-18065- Updated
- 2026-11-02
EUVDEUVD-2018-9804 No score
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
- Record
EUVD-2018-9804- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j2x7-g8jc-3475
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception...
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
- Record
GHSA-j2x7-g8jc-3475- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSV
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
- Record
CVE-2018-18065- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-18065
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
- Record
DEBIAN-CVE-2018-18065- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 10 moreShow less
OSVUBUNTU-CVE-2018-18065
_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
- Record
UBUNTU-CVE-2018-18065- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2022:0050-1 No score
Security update for net-snmp
This update for net-snmp fixes the following issues:
- CVE-2020-15862: Make extended MIB read-only (bsc#1174961)
- CVE-2018-18065: Fix remote DoS in agent/helpers/table.c (bsc#1111122)
- Record
openSUSE-SU-2022:0050-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:11082-1 No score
libsnmp30-32bit-5.9-3.2 on GA media
These are all security issues fixed in the libsnmp30-32bit-5.9-3.2 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11082-1- Updated
- 2026-11-02
OSVSUSE-SU-2018:3319-1 No score
Security update for net-snmp
This update for net-snmp fixes the following issues:
- CVE-2018-18065: _set_key in agent/helpers/table_container.c had a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service. (bsc#1111122)
- Record
SUSE-SU-2018:3319-1- Updated
- 2026-11-02
OSVSUSE-SU-2018:3333-1 No score
Security update for net-snmp
This update for net-snmp fixes the following issues:
Security issues fixed:
- CVE-2018-18065: _set_key in agent/helpers/table_container.c had a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service. (bsc#1111122)
Non-security issues fixed:
- swintst_rpm: Protect against unspecified Group name (bsc#1102775)
- Add tsm and tlstm MIBs and the USM security module. (bsc#1081164)
- Fix agentx freezing on timeout (bsc#1027353)
- Record
SUSE-SU-2018:3333-1- Updated
- 2026-11-02
OSVSUSE-SU-2018:3447-1 No score
Security update for net-snmp
This update for net-snmp fixes the following issues:
Security issues fixed:
- CVE-2018-18065: _set_key in agent/helpers/table_container.c had a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service. (bsc#1111122)
Non-security issues fixed:
- swintst_rpm: Protect against unspecified Group name (bsc#1102775)
- Add tsm and tlstm MIBs and the USM security module. (bsc#1081164)
- Fix agentx freezing on timeout (bsc#1027353)
- Record
SUSE-SU-2018:3447-1- Updated
- 2026-11-02
OSVSUSE-SU-2018:3447-2 No score
Security update for net-snmp
This update for net-snmp fixes the following issues:
Security issues fixed:
- CVE-2018-18065: _set_key in agent/helpers/table_container.c had a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service. (bsc#1111122)
Non-security issues fixed:
- swintst_rpm: Protect against unspecified Group name (bsc#1102775)
- Add tsm and tlstm MIBs and the USM security module. (bsc#1081164)
- Fix agentx freezing on timeout (bsc#1027353)
- Record
SUSE-SU-2018:3447-2- Updated
- 2026-11-02
OSVSUSE-SU-2022:0050-1 No score
Security update for net-snmp
This update for net-snmp fixes the following issues:
- CVE-2020-15862: Make extended MIB read-only (bsc#1174961)
- CVE-2018-18065: Fix remote DoS in agent/helpers/table.c (bsc#1111122)
- Record
SUSE-SU-2022:0050-1- Updated
- 2026-11-02
OSVSUSE-SU-2022:0050-2 No score
Security update for net-snmp
This update for net-snmp fixes the following issues:
- CVE-2020-15862: Make extended MIB read-only (bsc#1174961)
- CVE-2018-18065: Fix remote DoS in agent/helpers/table.c (bsc#1111122)
- Record
SUSE-SU-2022:0050-2- Updated
- 2026-11-02
OSVUSN-3792-1 No score
net-snmp vulnerability
It was discovered that Net-SNMP incorrectly handled certain certain crafted packets. A remote attacker could possibly use this issue to cause Net-SNMP to crash, resulting in a denial of service.
- Record
USN-3792-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
net-snmpDebian:12 |
before 5.7.3+dfsg-4 | 5.7.3+dfsg-4 |
net-snmpDebian:13 |
before 5.7.3+dfsg-4 | 5.7.3+dfsg-4 |
net-snmpDebian:14 |
before 5.7.3+dfsg-4 | 5.7.3+dfsg-4 |
net-snmpDebian:8 |
before 5.7.2.1+dfsg-1+deb8u2, plus listed versions 5.7.2.1+dfsg-15.7.2.1+dfsg-1+deb8u1 |
5.7.2.1+dfsg-1+deb8u2 |
net-snmpDebian:9 |
before 5.7.3+dfsg-1.7+deb9u1, plus listed versions 5.7.3+dfsg-1.7 |
5.7.3+dfsg-1.7+deb9u1 |
net-snmpSUSE:Linux Enterprise Server 12-LTSS |
before 5.7.2.1-4.9.1 | 5.7.2.1-4.9.1 |
net-snmpSUSE:Linux Enterprise Module for Basesystem 15 |
before 5.7.3-7.3.1 | 5.7.3-7.3.1 |
net-snmpSUSE:OpenStack Cloud 7 |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Desktop 12 SP3 |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Server for SAP Applications 12 SP2 |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
Show 32 moreShow less
| Package | Affected | Fixed |
|---|---|---|
net-snmpSUSE:Linux Enterprise Software Development Kit 12 SP3 |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Server 12 SP1-LTSS |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Server 12 SP2-LTSS |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Server 12 SP2-BCL |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Server 12 SP3 |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Server for SAP Applications 12 SP3 |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Enterprise Storage 4 |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Server for SAP Applications 12 SP1 |
before 5.7.3-6.3.1 | 5.7.3-6.3.1 |
net-snmpSUSE:Linux Enterprise Module for Basesystem 15 SP3 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise Module for Package Hub 15 SP3 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise Server 15 SP1-BCL From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise Server 15 SP1-LTSS From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise Server for SAP Applications 15 SP1 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Enterprise Storage 6 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise Real Time 15 SP2 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise Server 15 SP2-BCL From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise Server 15 SP2-LTSS From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Linux Enterprise Server for SAP Applications 15 SP2 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Manager Proxy 4.1 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Manager Retail Branch Server 4.1 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Manager Server 4.1 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpSUSE:Enterprise Storage 7 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpUbuntu:14.04:LTS |
before 5.7.2~dfsg-8.1ubuntu3.3, plus listed versions 5.7.2~dfsg-8ubuntu15.7.2~dfsg-8ubuntu25.7.2~dfsg-8.1ubuntu15.7.2~dfsg-8.1ubuntu25.7.2~dfsg-8.1ubuntu35.7.2~dfsg-8.1ubuntu3.15.7.2~dfsg-8.1ubuntu3.2 |
5.7.2~dfsg-8.1ubuntu3.3 |
net-snmpUbuntu:16.04:LTS |
before 5.7.3+dfsg-1ubuntu4.2, plus listed versions 5.7.3+dfsg-1ubuntu25.7.3+dfsg-1ubuntu35.7.3+dfsg-1ubuntu45.7.3+dfsg-1ubuntu4.1 |
5.7.3+dfsg-1ubuntu4.2 |
net-snmpUbuntu:18.04:LTS |
before 5.7.3+dfsg-1.8ubuntu3.1, plus listed versions 5.7.3+dfsg-1.7ubuntu15.7.3+dfsg-1.8ubuntu15.7.3+dfsg-1.8ubuntu25.7.3+dfsg-1.8ubuntu3 |
5.7.3+dfsg-1.8ubuntu3.1 |
operaopenSUSE:Leap 15.3 NonFree From an advisory covering 2 CVEs |
before 84.0.4316.14-lp153.2.36.1 | 84.0.4316.14-lp153.2.36.1 |
net-snmpopenSUSE:Leap 15.3 From an advisory covering 2 CVEs |
before 5.7.3-10.9.1 | 5.7.3-10.9.1 |
net-snmpopenSUSE:Tumbleweed From an advisory covering 2 CVEs |
before 5.9-3.2 | 5.9-3.2 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | net-snmp 5.7.3 - (Authenticated) Denial of Service (PoC) | 2018-10-08 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-18065 is a medium vulnerability (CVSS 6.5) in Net-snmp, published October 8, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 17.5%, the 97th percentile. Fixed in net-snmp 5.7.3+dfsg-4.
References
sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d
exploit-db.com/exploits/45547
usn.ubuntu.com/3792-1
dumpco.re/blog/net-snmp-5.7.3-remote-dos
security.netapp.com/advisory/ntap-20181107-0001
Show 39 moreShow less
debian.org/security/2018/dsa-4314
securityfocus.com/bid/106265
oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
cert-portal.siemens.com/productcert/pdf/ssa-978220.pdf
security.paloaltonetworks.com/CVE-2018-18065
nvd.nist.gov/vuln/detail/CVE-2018-18065
github.com/advisories/GHSA-j2x7-g8jc-3475
security-tracker.debian.org/tracker/CVE-2018-18065
suse.com/support/update/announcement/2018/suse-su-20183319-1
bugzilla.suse.com/1111122
ubuntu.com/security/CVE-2018-18065
cve.org/CVERecord?id=CVE-2018-18065
lists.opensuse.org/archives/list/[email protected]/thread/2OQK3YBZP7LLGFOZF2RYGZC5GDDRHRI6