How severe is CVE-2025-57155?

CVE-2025-57155 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-57155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-57155?

CVE-2025-57155 affects Owntone Owntone Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-57155?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-57155 have an EU (EUVD) identifier?

Yes. CVE-2025-57155 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3326.

When was CVE-2025-57155 published?

CVE-2025-57155 was published on 2026-01-20 and last updated on 2026-06-17.

CVE-2025-57155

CVE-2025-57155 is a high-severity vulnerability in Owntone Owntone Server with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3326
Weakness: CWE-476
Affected product: Owntone Owntone Server
Published: 2026-01-20
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-57155?: CVE-2025-57155 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-57155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-57155?: CVE-2025-57155 affects Owntone Owntone Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-57155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-57155 have an EU (EUVD) identifier?: Yes. CVE-2025-57155 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3326.
When was CVE-2025-57155 published?: CVE-2025-57155 was published on 2026-01-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:owntone:owntone_server:*:*:*:*:*:*:*:*

More vulnerabilities in Owntone Owntone Server

CVE-2021-38383 — Critical (CVSS 9.8): OwnTone (aka owntone-server) through 28.1 has a use-after-free in net_bind() in misc.c.
CVE-2025-63648 — High (CVSS 7.5): A NULL pointer dereference in the dacp_reply_playqueueedit_move function (src/httpd_dacp.c) of owntone-server commit…
CVE-2025-63647 — High (CVSS 7.5): A NULL pointer dereference in the parse_meta function (src/httpd_daap.c) of owntone-server commit 334beb allows…
CVE-2025-57156 — High (CVSS 7.5): NULL pointer dereference in the dacp_reply_playqueueedit_clear function in src/httpd_dacp.c in owntone-server through…

All CVEs affecting Owntone Owntone Server →

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