High severity · published Jul 20, 2018
CVE-2018-14438
In Wireshark through 2.6.2, the create_app_running_mutex function in wsutil/file_util.c calls SetSecurityDescriptorDacl to set a NULL DACL, which allows attackers to modify the…
7.5
CVSS
1.2%
EPSS
No
On KEV
Description
In Wireshark through 2.6.2, the create_app_running_mutex function in wsutil/file_util.c calls SetSecurityDescriptorDacl to set a NULL DACL, which allows attackers to modify the access control arbitrarily.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Wireshark · Wireshark
through 2.6.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14438
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-14438
Third Party Advisory
http://www.securityfocus.com/bid/104876
Issue Tracking
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14921
More from Wireshark
9.8
CVE-2026-76886
Heap-based Buffer Overflow in Wireshark
9.8
CVE-2022-0582
Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file
9.8
CVE-2018-6836
The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers…
8.8
CVE-2026-95387
Heap-based Buffer Overflow in Wireshark
8.8
CVE-2026-5402
Heap-based Buffer Overflow in Wireshark