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CVE-2018-18065

41
FAUCET Score

CVE-2018-18065 is a NULL Pointer Exception vulnerability in Net-SNMP before version 5.8, affecting products from vendors like Canonical, Debian, NetApp, and Palo Alto Networks. An authenticated attacker can remotely trigger a Denial of Service by sending a crafted UDP packet, as indicated by its CVSS score of 6.5 (MEDIUM) with a high availability impact. While not in CISA's KEV catalog, a proof-of-concept exploit is publicly available on ExploitDB, and there has been some community discussion, including a Reddit post mentioning an exploit.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.8CPE matchmatch criteria
cpe:2.3:a:net-snmp:net-snmp:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
17.19%
Probability of exploitation in next 30 days
EPSS Percentile
96.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-45547 · Oct 8, 2018
This CVE's current EPSS score of 0.1719 is in the 99th percentile among its peer group of 21,939 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Advisories (1)

redhatCVE-2018-18065Moderate

net-snmp: NULL pointer exception in _set_key in agent/helpers/table_container.c resulting in a denial of service

Oct 6, 2016

References

cert-portal.siemens.com / productcert/pdf/ssa-978220.pdf
dumpco.re / blog/net-snmp-5.7.3-remote-dos
ExploitPatchThird Party Advisory
security.netapp.com / advisory/ntap-20181107-0001
Third Party Advisory
security.paloaltonetworks.com / CVE-2018-18065
sourceforge.net / p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d
PatchThird Party Advisory
usn.ubuntu.com / 3792-1
Third Party Advisory
usn.ubuntu.com / 3792-2
Third Party Advisory
usn.ubuntu.com / 3792-3
Third Party Advisory
debian.org / security/2018/dsa-4314
Third Party Advisory
exploit-db.com / exploits/45547
ExploitPatchThird Party AdvisoryVDB Entry
oracle.com / technetwork/security-advisory/cpuoct2019-5072832.html
securityfocus.com / bid/106265
Third Party AdvisoryVDB Entry