CVE-2023-33476

CVE-2023-33476 is a critical-severity vulnerability in Readymedia Project Readymedia 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-787.

Key facts

• Severity: Critical (CVSS 3.x base score 9.8)
• EPSS exploit prediction: 2% (79th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-787
• Affected product: Readymedia Project Readymedia
• Published: 2023-06-02
• Last modified: 2026-06-17

Description

ReadyMedia (MiniDLNA) versions from 1.1.15 up to 1.3.2 is vulnerable to Buffer Overflow. The vulnerability is caused by incorrect validation logic when handling HTTP requests using chunked transport encoding. This results in other code later using attacker-controlled chunk values that exceed the length of the allocated buffer, resulting in out-of-bounds read/write.

Frequently asked questions

What is CVE-2023-33476?

ReadyMedia (MiniDLNA) versions from 1.1.15 up to 1.3.2 is vulnerable to Buffer Overflow. The vulnerability is caused by incorrect validation logic when handling HTTP requests using chunked transport encoding. This results in other code later using attacker-controlled chunk values that exceed the length of the allocated buffer, resulting in out-of-bounds read/write.

How severe is CVE-2023-33476?

CVE-2023-33476 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-2023-33476 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-33476?

CVE-2023-33476 affects Readymedia Project Readymedia. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-33476?

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-2023-33476 published?

CVE-2023-33476 was published on 2023-06-02 and last updated on 2026-06-17.

References

• https://blog.coffinsec.com/0day/2023/05/31/minidlna-heap-overflow-rca.html
• https://lists.debian.org/debian-lts-announce/2023/06/msg00027.html
• https://security.gentoo.org/glsa/202311-12
• https://sourceforge.net/p/minidlna/git/ci/9bd58553fae5aef3e6dd22f51642d2c851225aec/
• https://sourceforge.net/projects/minidlna/
• https://www.debian.org/security/2023/dsa-5434

Affected products (1)

• cpe:2.3:a:readymedia_project:readymedia:*:*:*:*:*:*:*:*

More vulnerabilities in Readymedia Project Readymedia

• CVE-2020-28926 — Critical (CVSS 9.8): ReadyMedia (aka MiniDLNA) before versions 1.3.0 allows remote code execution. Sending a malicious UPnP HTTP request to…
• CVE-2013-2739 — Critical (CVSS 9.8): MiniDLNA has heap-based buffer overflow
• CVE-2013-2738 — Critical (CVSS 9.8): minidlna has SQL Injection that may allow retrieval of arbitrary files
• CVE-2023-47430 — High (CVSS 7.5): Stack-buffer-overflow vulnerability in ReadyMedia (MiniDLNA) v1.3.3 allows attackers to cause a denial of service via…
• CVE-2022-26505 — High (CVSS 7.4): A DNS rebinding issue in ReadyMedia (formerly MiniDLNA) before 1.3.1 allows a remote web server to exfiltrate media…

All CVEs affecting Readymedia Project Readymedia →

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