CVE-2022-48521: Opendkim

Medium severity, CVSS 5.3. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in OpenDKIM through 2.10.3, and 2.11.x through 2.11.0-Beta2. It fails to keep track of ordinal numbers when removing fake Authentication-Results header fields, which allows a remote attacker to craft an e-mail message with a fake sender address such that programs that rely on Authentication-Results from OpenDKIM will treat the message as having a valid DKIM signature when in fact it has none.

Affected products

• Opendkim Opendkim: up to and including 2.10.3; version 2.11.0 only

Published 2023-07-11. Last modified 2026-06-17.