Fedora 43 : exim (2026-71b1e9b455)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-71b1e9b455 advisory. This is an update fixing a pre-authentication information disclosure CVE-2026-48840. Tenable has extracted the preceding description block directly from the...

CVE-2026-48840

A flaw was found in Exim. In certain proxy configurations, Exim mishandles short data payloads. This can lead to the disclosure of uninitialized stack memory values to a remote client, potentially exposing sensitive information...

CVE-2026-48840

Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of uninitialized stack memory values to a client...