CVE-2026-36911

MP4 Buffer Size Division-by-Zero Exploit in MPC-BE Enables DoS

Published Jul 1, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
A division-by-zero vulnerability in the CStreamSwitcherOutputPin::DecideBufferSize function of Aleksoid1978 MPC-BE before commit 4341cb3 allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title MP4 Buffer Size Division-by-Zero Exploit in MPC-BE Enables DoS
Type Values Removed Values Added
Title Division‑by‑zero in MPC‑BE Buffer Size Calculation Causes DoS
Type Values Removed Values Added
First Time appeared Aleksoid1978
Aleksoid1978 mpc-be
Vendors & Products Aleksoid1978
Aleksoid1978 mpc-be
Type Values Removed Values Added
Title Division‑by‑zero in MPC‑BE Buffer Size Calculation Causes DoS
Type Values Removed Values Added
Title Division-by-Zero Vulnerability in MPC‑BE MP4 Parsing Allows DoS
Type Values Removed Values Added
Title Division-by-Zero Vulnerability in MPC‑BE MP4 Parsing Allows DoS
Type Values Removed Values Added
Title Division‑By‑Zero Vulnerability in MPC‑BE Buffer‑Size Calculation Enables Denial of Service
Type Values Removed Values Added
Title Division‑By‑Zero Vulnerability in MPC‑BE Buffer‑Size Calculation Enables Denial of Service
Type Values Removed Values Added
Title Denial of Service via Division-by-Zero in MPC‑BE MP4 Parsing
Type Values Removed Values Added
Title Denial of Service via Division-by-Zero in MPC‑BE MP4 Parsing
Type Values Removed Values Added
Title Division‑by‑Zero in MPC‑BE MP4 Buffer Size Calculation Causes DoS
Type Values Removed Values Added
Title Division‑by‑Zero in MPC‑BE MP4 Buffer Size Calculation Causes DoS
Type Values Removed Values Added
Title Division-by-Zero Vulnerability in MPC-BE Buffer-Size Calculation Enables Denial of Service
Type Values Removed Values Added
Title Division-by-Zero Vulnerability in MPC-BE Buffer-Size Calculation Enables Denial of Service
Type Values Removed Values Added
Title Division-by-Zero Buffer Size Bug Causes DoS in MPC-BE
Type Values Removed Values Added
Title Division-by-Zero Buffer Size Bug Causes DoS in MPC-BE
Type Values Removed Values Added
Title Division-by-Zero Crash in Media Player Classic – Basic Edition Leads to DoS via Malicious MP4
Type Values Removed Values Added
Title Division-by-Zero Crash in Media Player Classic – Basic Edition Leads to DoS via Malicious MP4
Type Values Removed Values Added
Title Division‑by‑Zero in MPC‑BE Buffer Size Calculation Causes Denial of Service
Type Values Removed Values Added
Title Division‑by‑Zero in MPC‑BE Buffer Size Calculation Causes Denial of Service
Type Values Removed Values Added
Title Division-by-Zero Crash in MPC-BE MP4 Parsing Leads to DoS
Type Values Removed Values Added
Title Division-by-Zero Crash in MPC-BE MP4 Parsing Leads to DoS
Type Values Removed Values Added
Weaknesses CWE-369
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Division‑By‑Zero Vulnerability in MPC‑BE Causing DoS via Malicious MP4
Weaknesses CWE-369
Type Values Removed Values Added
Title Division‑By‑Zero Vulnerability in MPC‑BE Causing DoS via Malicious MP4
Weaknesses CWE-369
Type Values Removed Values Added
Description A division-by-zero vulnerability in the CStreamSwitcherOutputPin::DecideBufferSize function of Aleksoid1978 MPC-BE before commit 4341cb3 allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 2, 2026, 2:40 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Deferred
Published
Jul 1, 2026, 10:16 PM
Modified
Jul 2, 2026, 5:42 PM