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CVE-2018-11356

24
FAUCET Score

CVE-2018-11356 describes a denial-of-service vulnerability in Wireshark versions 2.6.0, 2.4.0-2.4.6, and 2.2.0-2.2.14, specifically affecting the DNS dissector. This flaw, caused by a NULL pointer dereference when processing SRV records with empty names, could lead to a crash of the application. With a CVSS score of 7.5 (HIGH), this vulnerability is remotely exploitable with low attack complexity, resulting in high availability impact. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2.0, <= 2.2.14CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
>= 2.4.0, <= 2.4.6CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:2.6.0:*:*:*:*:*:*:*
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
2.84%
Probability of exploitation in next 30 days
EPSS Percentile
85.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0284 is in the 74th 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-2018-11356Moderate

wireshark: DNS dissector crash in packet-dns.c

May 12, 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/2019/01/msg00010.html
Mailing ListThird Party Advisory
wireshark.org / security/wnpa-sec-2018-29.html
Vendor Advisory
securityfocus.com / bid/104308
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041036
Third Party AdvisoryVDB Entry