#VU123887 Use-after-free in cURL - CVE-2026-3805
Published: March 11, 2026
Vulnerability identifier: #VU123887
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-3805
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
cURL
cURL
Software vendor:
curl.haxx.se
curl.haxx.se
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when doing a second SMB request to the same host again. A remote attacker can gain access to sensitive information on the system.
Remediation
Install updates from vendor's website.