Memory Buffer Bounds ErrorWeakness · CWE-119

CVE-2026-36910

MEDIUM · 5.5 CVSS v3.1 Published 2026-07-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
58/100
Remediation priority · Elevated
No privileges 7 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An access violation in the BaseSplitterFile::Read function of Aleksoid1978 MPC-BE before commit 4341cb3 allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

An access violation vulnerability exists in the BaseSplitterFile::Read function of MPC-BE media player. The vulnerability is triggered when parsing a specially crafted MP4 file, causing an out-of-bounds read or null pointer dereference that leads to a denial of service condition.

MitigationUsers should avoid opening untrusted MP4 files until the fix from commit 4341cb3 is applied. Update MPC-BE to the latest version containing the patched code.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify MPC-BE installation
    Check for MPC-BE executable in typical installation paths: C:\Program Files\MPC-BE\mpc-be.exe (Windows) or search for the binary using system file search tools
    Affected if MPC-BE executable is found on the system
  2. Determine installed MPC-BE version
    Right-click the mpc-be.exe file, select Properties, then view the Details tab to see the File Version, or run 'mpc-be.exe /?' to display version information from the command line
    Affected if The displayed version number is lower than the version containing the fix from commit 4341cb3
  3. Identify vulnerable component
    Locate the splitter library files that handle MP4 parsing, typically named mpcparsers.dll or similar splitter DLLs in the MPC-BE installation directory
    Affected if The splitter parser component exists and handles MP4 file decoding
  4. Verify MP4 file handling is enabled
    MPC-BE automatically attempts to parse MP4 files when opened; no explicit configuration toggle exists - the vulnerability triggers upon opening a crafted MP4 file
    Affected if MPC-BE can be used to open MP4 files, meaning the MP4 parsing functionality is present

The system is affected if MPC-BE media player is installed and the installed version predates the fix from commit 4341cb3, enabling the vulnerable BaseSplitterFile::Read function to parse MP4 files.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Users should avoid opening untrusted MP4 files until the fix from commit 4341cb3 is applied. Update MPC-BE to the latest version containing the patched code.

Recommended fix Moderate confidence

Latest MPC-BE stable release (verify version includes commit 4341cb3)

  1. 1. Visit the official MPC-BE GitHub repository at github.com/Aleksoid1978/MPC-BE
  2. 2. Navigate to the releases section to identify the latest stable release
  3. 3. Download and install the latest version of MPC-BE
  4. 4. Alternatively, verify if commit 4341cb3 is included in your current version by checking the application's version information
  5. 5. If your version predates the fix, upgrade to the most recent release which should contain the patch

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-36910 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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