What is CVE-2025-57155?

CVE-2025-57155 is a high-severity vulnerability in Owntone Server, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-01-20.

How severe is CVE-2025-57155?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Owntone Server

CVE-2025-57155

NULL pointer dereference in the daap_reply_groups function in src/httpd_daap.c in owntone-server through commit 5e6f19a (newer commit after version 28.2) allows remote attackers to cause a Denial of Service.

Published 2026-01-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (30.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Owntone Server

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/owntone/owntone-server/commit/d857116e4143a500d6a1ea13f4baa057ba3b00… (Patch)
github.com/archersec/security-advisories/blob/master/owntone-server/owntone-ser… (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-57155?: CVE-2025-57155 is a high-severity vulnerability in Owntone Server, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-01-20.
How severe is CVE-2025-57155?: High severity. CVSS v3 base score is 7.5 out of 10.