High severity · published Oct 6, 2020
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
7.5
CVSS
4.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.9% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
FE
Fedora · Fedoraproject
31; 32; 33 · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
WI
Wireshark · Wireshark
2.6.0 through 2.6.20; 3.0.0 through 3.0.13; 3.2.0 through 3.2.6 · source: NVD
ZS
Zfs Storage Appliance Firmware · Oracle
8.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25863
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-25863
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.html
Patch
https://gitlab.com/wireshark/wireshark/-/commit/5803c7b87b3414cdb8bf502af50bb406ca774482
Exploit
https://gitlab.com/wireshark/wireshark/-/issues/16741
Mailing List
https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DQHPKZFQ7W3X34RYN3FWFYCFJD4FXJW/
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-24061
GNU InetUtils Argument Injection Vulnerability