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CVE-2017-7746

25
FAUCET Score

CVE-2017-7746 describes a denial-of-service vulnerability in Wireshark versions 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, where a specially crafted SLSK packet or capture file could cause an infinite loop in the SLSK dissector. This high-severity vulnerability (CVSS 7.5) is remotely exploitable with low complexity, leading to high availability impact without requiring user interaction or privileges. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential for denial of service remains.

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
2.47%
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 0.0247 is in the 69th percentile among its peer group of 51,485 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-2017-7746Moderate

wireshark: SLSK dissector long loop (wnpa-sec-2017-19)

Apr 12, 2017

References

bugs.wireshark.org / bugzilla/show_bug.cgi
Issue TrackingPatchVendor 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-2017-19.html
Vendor Advisory
securityfocus.com / bid/97635
Third Party AdvisoryVDB Entry