VULNERABILITY INTELLIGENCE
CVE-2026-42392
CVSS score4.3 MEDIUM
EPSS probability0.27%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-09-03
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Description
An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returned to the client. Process memory contents can be disclosed to the client, which may include sensitive data. Disable the IMAP URLAUTH functionality. Update to non-vulnerable version. No publicly available exploits are known.
Weakness classification
- security@open-xchange.com: CWE-200