HOMEVULNERABILITIESCVE-2020-28926
CRITICAL

CVE-2020-28926

CWE-120Published: November 30, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

ReadyMedia (aka MiniDLNA) before versions 1.3.0 allows remote code execution. Sending a malicious UPnP HTTP request to the miniDLNA service using HTTP chunked encoding can lead to a signedness bug resulting in a buffer overflow in calls to memcpy/memmove.

NVD Source

Technical Analysis

CVE-2020-28926 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
readymedia_project1 product(s)
readymedia
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://lists.debian.org/debian-lts-announce/2020/12/msg00017.html
ADVISORYhttps://sourceforge.net/projects/minidlna/
ADVISORYhttps://www.debian.org/security/2020/dsa-4806
ADVISORYhttps://www.rootshellsecurity.net/remote-heap-corruption-bug-discovery-minidlna/
ADVISORYhttps://lists.debian.org/debian-lts-announce/2020/12/msg00017.html
ADVISORYhttps://sourceforge.net/projects/minidlna/
ADVISORYhttps://www.debian.org/security/2020/dsa-4806
ADVISORYhttps://www.rootshellsecurity.net/remote-heap-corruption-bug-discovery-minidlna/

All References (8)

→
https://lists.debian.org/debian-lts-announce/2020/12/msg00017.htmlMailing List · Third Party Advisory
→
https://sourceforge.net/projects/minidlna/Third Party Advisory
→
https://www.debian.org/security/2020/dsa-4806Third Party Advisory
→
https://www.rootshellsecurity.net/remote-heap-corruption-bug-discovery-minidlna/Exploit · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/12/msg00017.htmlMailing List · Third Party Advisory
→
https://sourceforge.net/projects/minidlna/Third Party Advisory
→
https://www.debian.org/security/2020/dsa-4806Third Party Advisory
→
https://www.rootshellsecurity.net/remote-heap-corruption-bug-discovery-minidlna/Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2020-28926
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-120
CISA KEVNo
Affected2 vendor(s)
PublishedNov 30, 2020

Related CVEs (CWE-120)

CVE-2021-33972
10.0
CVE-2023-4260
10.0
CVE-2022-31481
10.0
CVE-2022-20827
10.0
CVE-2021-33975
10.0
CVE-2011-4862
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-28926 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2020-28926·NVD