The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20554-1 advisory.

    - Update to v2.4.3
    - CVE-2025-59028: Invalid base64 authentication can cause DoS for other logins (bsc#1260894).
    - CVE-2025-59031: decode2text.sh OOXML extraction may follow symlinks and read unintended files during     indexing       (bsc#1260895).
    - CVE-2025-59032: pigeonhole: ManageSieve panic occurs with sieve-connect as a client (bsc#1260902).
    - CVE-2026-24031: SQL injection possible if auth_username_chars is configured empty. Fixed escaping to     always happen.
      v2.4 regression (bsc#1260896).
    - CVE-2026-27855: OTP driver vulnerable to replay attack (bsc#1260900).
    - CVE-2026-27856: Doveadm credentials were not checked using timing-safe checking function (bsc#1260899).
    - CVE-2026-27857: sending excessive parenthesis causes imap-login to use excessive memory (bsc#1260898).
    - CVE-2026-27858: pigeonhole: managesieve-login can allocate large amount of memory during authentication     (bsc#1260901).
    - CVE-2026-27859: excessive RFC 2231 MIME parameters in email would can excessive CPU usage (bsc#1260897).
    - CVE-2026-27860: LDAP query injection possible if auth_username_chars is configured empty. Fixed escaping     to always       happen. v2.4 regression (bsc#1260893).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

openSUSE 16 Security Update : dovecot24 (openSUSE-SU-2026:20554-1)

high Nessus Plugin ID 309138

Version 1.2

Version 1.1

Version 1.2 May 1, 2026, 1:37 PM CVSS metrics ("CVSSv2 score" set to 8.5) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:N/C:P/I:C/A:N") CVSS metrics ("CVSSv3 score" set to 8.2) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N") Plugin Feed: 202605011337
Version 1.1 Apr 22, 2026, 2:55 PM New Plugin Feed: 202604221455