Heap-based buffer overflow in SAIL - CVE-2026-27168
Published: February 19, 2026
Vulnerability identifier: #VU123085
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2026-27168
CWE-ID: CWE-122
Exploitation vector: Adjecent network
Exploit availability:
Public exploit is available
Vendor: Dzmitry Baryshau
Affected software:
SAIL
SAIL
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Sail-codecs-xwd. A remote attacker on the local network can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2026-27168
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.