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HIGH

CVE-2020-25863

CVSS v3

7.5

HIGH

EPSS Score

4.9 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In Wireshark 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the MIME Multipart dissector could crash. This was addressed in epan/dissectors/packet-multipart.c by correcting the deallocation of invalid MIME parts.

Technical details

Published
2020-10-06

Frequently asked questions

What is CVE-2020-25863?

In Wireshark 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the MIME Multipart dissector could crash. This was addressed in epan/dissectors/packet-multipart.c by correcting the deallocation of invalid MIME parts.

Is CVE-2020-25863 actively exploited?

Active exploitation of CVE-2020-25863 has not been confirmed. Its EPSS score was 4.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-25863?

CVE-2020-25863 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2020-25863 affecting your environment?

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