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CVE-2018-7320

25
FAUCET Score

CVE-2018-7320 describes a denial-of-service vulnerability in Wireshark versions 2.4.0 through 2.4.4 and 2.2.0 through 2.2.12, where a crafted SIGCOMP protocol dissector could cause the application to crash. This vulnerability is rated as High severity (CVSS 7.5), indicating it can be exploited remotely over the network with low attack complexity, leading to high availability impact without requiring user interaction or privileges. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2.0, <= 2.2.12CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
>= 2.4.0, <= 2.4.4CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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
2.67%
Probability of exploitation in next 30 days
EPSS Percentile
84.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0267 is in the 72nd percentile among its peer group of 51,551 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-2018-7320Low

wireshark: Heap-based Buffer Overflow in SIGCOMP dissector crash in packet-sigcomp.c

Feb 6, 2018

References

bugs.wireshark.org / bugzilla/show_bug.cgi
Issue TrackingVendor Advisory
code.wireshark.org / review/gitweb
debian.org / security/2018/dsa-4217
Third Party Advisory
wireshark.org / security/wnpa-sec-2018-10.html
Vendor Advisory
securityfocus.com / bid/103160
Third Party AdvisoryVDB Entry