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CVE-2021-22174

25
FAUCET Score

CVE-2021-22174 describes a denial-of-service vulnerability in Wireshark versions 3.4.0 to 3.4.2, specifically within its USB HID dissector, affecting various Fedora and Oracle Wireshark distributions. This high-severity flaw (CVSS 7.5) can be triggered remotely without user interaction via packet injection or a crafted capture file, leading to a crash. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.4.0, < 3.4.3CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
8.8CPE matchmatch criteria
cpe:2.3:o:oracle:zfs_storage_appliance:8.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.7LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.75%
Probability of exploitation in next 30 days
EPSS Percentile
84.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0275 is in the 73rd 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

Patch Available

Vendor Patches (1)

oraclepatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2021-22174Low

wireshark: USB HID dissector could crash

Jan 29, 2021

References

gitlab.com / gitlab-org/cves/-/blob/master/2021/CVE-2021-22174.json
Third Party Advisory
gitlab.com / wireshark/wireshark/-/issues/17165
ExploitThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GND3PIQC3KZALR227V4YUMPKJBA5BZG4
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/NYXLKQJ3D632XSG6VO7M4YFDAG6GRCLY
security.gentoo.org / glsa/202107-21
Third Party Advisory
oracle.com / security-alerts/cpuApr2021.html
PatchThird Party Advisory
wireshark.org / security/wnpa-sec-2021-02.html
Vendor Advisory