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CVE-2017-7745

25
FAUCET Score

CVE-2017-7745 describes an infinite loop vulnerability in the SIGCOMP dissector within Wireshark versions 2.2.0-2.2.5 and 2.0.0-2.0.11. This flaw, triggered by crafted network packets or malformed capture files, could lead to a denial-of-service condition. Rated with a CVSS score of 7.5 (High), it presents a network-based attack vector with low complexity, requiring no user interaction, and resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:2.0.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:2.0.1:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:2.0.2:*:*:*:*:*:*:*
2.0.3CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:2.0.3:*:*:*:*:*:*:*
2.0.4CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:2.0.4:*:*:*:*:*:*:*

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
2.46%
Probability of exploitation in next 30 days
EPSS Percentile
82.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0246 is in the 69th percentile among its peer group of 51,506 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 Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: wireshark
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: wireshark

Vendor Advisories (1)

redhatCVE-2017-7745Moderate

wireshark: SIGCOMP dissector infinite loop (wnpa-sec-2017-20)

Apr 12, 2017

References

bugs.wireshark.org / bugzilla/show_bug.cgi
Issue TrackingPatch
code.wireshark.org / review/gitweb
wireshark.org / security/wnpa-sec-2017-20.html
Vendor Advisory
securityfocus.com / bid/97627
Third Party AdvisoryVDB Entry