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CVE-2018-14339

24
FAUCET Score

CVE-2018-14339 describes a denial-of-service vulnerability in Wireshark versions 2.6.0-2.6.1, 2.4.0-2.4.7, and 2.2.0-2.2.15, where a specially crafted MMSE packet could cause an infinite loop in the dissector. This high-severity vulnerability (CVSS 7.5) has a low attack complexity and can be exploited remotely without user interaction, leading to high availability impact. While no public exploits or active exploitation have been observed, and community discussion is minimal, the issue was addressed by adding offset and length validation in epan/proto.c.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2.0, <= 2.2.15CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
>= 2.4.0, <= 2.4.7CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
>= 2.6.0, <= 2.6.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.52%
Probability of exploitation in next 30 days
EPSS Percentile
88.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0352 is in the 79th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2018-14339Moderate

wireshark: MMSE dissector infinite loop (wnpa-sec-2018-38)

Jul 18, 2018

References

lists.opensuse.org / opensuse-security-announce/2020-03/msg00027.html
bugs.wireshark.org / bugzilla/show_bug.cgi
Issue TrackingVendor Advisory
code.wireshark.org / review/gitweb
lists.debian.org / debian-lts-announce/2018/07/msg00045.html
Mailing ListThird Party Advisory
wireshark.org / security/wnpa-sec-2018-38.html
Vendor Advisory
securityfocus.com / bid/104847
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041608
Third Party AdvisoryVDB Entry