Out-of-bounds read in cURL - CVE-2025-9086
Published: September 10, 2025
Vulnerability identifier: #VU115138
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:L/E:U/U:Clear
CVE-ID: CVE-2025-9086
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: curl.haxx.se
Affected software:
cURL
cURL
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when reading cookie path. A malicious server can set a specially crafted cookie path using the secure keyword, trigger an out-of-bounds read error and crash the application.
How to mitigate CVE-2025-9086
Install updates from vendor's website.