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CVE-2021-4186

HIGHCVSS 7.5/10EPSS 2.21%

Last modified

CVE-2021-4186 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file. EPSS estimates a 2.21% chance of exploitation in the next 30 days.

Description

Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
2.21%

80.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
WiresharkWireshark>= 3.4.0, <= 3.4.10
FedoraprojectFedora34
FedoraprojectFedora35

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-4186?
Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
How severe is CVE-2021-4186?
CVE-2021-4186 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.21% probability of exploitation in the next 30 days.
How do I fix CVE-2021-4186?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4186?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST