High severity · published Nov 29, 2018
CVE-2018-19622
In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the MMSE dissector could go into an infinite loop
7.5
CVSS
3.2%
EPSS
No
On KEV
Description
In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the MMSE dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-mmse.c by preventing length overflows.
CVSS vector
CVSS:3.0/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)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
WI
Wireshark · Wireshark
2.4.0 through 2.4.10; 2.6.0 through 2.6.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-19622
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-19622
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
Third Party Advisory
http://www.securityfocus.com/bid/106051
Exploit
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15250
code.wireshark.org
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=3b7555d32d11862f0e500ec466ad6bfe54190076
Mailing List
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
Third Party Advisory
https://www.debian.org/security/2018/dsa-4359
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-2026-111497
Out-of-Bounds Write in Google Brotli Decoder