CVE-2020-9428

7.5 HIGH 3% exploit odds Fix listed

What it is

In Wireshark 3.2.0 to 3.2.1, 3.0.0 to 3.0.8, and 2.6.0 to 2.6.14, the EAP dissector could crash. This was addressed in epan/dissectors/packet-eap.c by using more careful sscanf parsing.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 3.1% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-02-27 23:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:27 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.1% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-02-27 23:15 UTC
Last modified: 2026-06-17 03:27 UTC
Exploit probability: 3.1% · EPSS, next 30 days
Weakness: CWE-125 · Out-of-bounds read
Record status: Modified

Affected

Wireshark ≤ 2.6.14
Wireshark ≤ 3.0.8
Wireshark ≤ 3.2.1
Debian Linux 9.0
Fedoraproject Fedora 30
Fedoraproject Fedora 31
Fedoraproject Fedora 32
Opensuse Leap 15.1

Attack profile CVSS 3.1 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record