CVE-2021-38383
CVE-2021-38383 is a critical-severity vulnerability in Owntone Owntone Server with a CVSS 3.x base score of 9.8. 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-416.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (65th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Owntone Owntone Server
- Published:
- Last modified:
Description
OwnTone (aka owntone-server) through 28.1 has a use-after-free in net_bind() in misc.c.
Frequently asked questions
- What is CVE-2021-38383?
- OwnTone (aka owntone-server) through 28.1 has a use-after-free in net_bind() in misc.c.
- How severe is CVE-2021-38383?
- CVE-2021-38383 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-38383 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-38383?
- CVE-2021-38383 affects Owntone Owntone Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-38383?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-38383 published?
- CVE-2021-38383 was published on 2021-08-10 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-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…
- CVE-2025-57155 — High (CVSS 7.5): NULL pointer dereference in the daap_reply_groups function in src/httpd_daap.c in owntone-server through commit 5e6f19a…
All CVEs affecting Owntone Owntone Server →
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