CVE-2018-18065

mediumpriority · track · 42EPSS 0.175 · 97 %ileexploit · PoCDEEURUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
17.5% (97th) EPSS
CVSS 4 · medium
Is it mine?
97 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

_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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

6.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 2.9
v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6
v3.06.2mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Psecondary · CVSS-BT (t0sche)
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USprimaryCWE-476USCWE-476USCWE-476US
04

exploits (1)

Public proof-of-concept and weaponised exploit code.

05

affected products (97)

Products and version ranges known to be affected.

showing 20 of 97
06

advisories (4)

Vendor and ecosystem advisories describing this.

  • SSA-978220SSA-978220: Denial of Service Vulnerability over SNMP in Multiple Industrial Products2020-02-11csaf · siemens_psirtDE

    Several industrial products are affected by a vulnerability that could allow remote attackers to conduct a denial of service attack by sending specially crafted packets to port 161/udp (SNMP). Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

  • WID-SEC-W-2024-1591Juniper JUNOS: Mehrere SchwachstellenDeutsch2024-07-10csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen, Privilegien zu erweitern und Sicherheitsmechanismen inklusive zu umgehen.

  • WID-SEC-W-2025-1692Net-SNMP: Schwachstelle ermöglicht Denial of ServiceDeutsch2018-10-08csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Net-SNMP ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • ICSA-20-042-02Siemens Industrial Products SNMP (Update F)2020-02-11icsa · cisa_csaf_otUS

    Several industrial products are affected by a vulnerability that could allow remote attackers to conduct a denial of service attack by sending specially crafted packets to port 161/udp (SNMP). Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otsiemens_psirtNVDCVE.orgMITRE
published 2018-10-08modified 2026-06-17
10

references (53)

External citations — patches, advisories, analysis.

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