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vgmstream CVE-2026-86515

| EUVDEUVD-2026-72638 LOW
Uncontrolled Resource Consumption (CWE-400)
2026-09-08 VulDB GHSA-rvx9-668h-q594
Denial Of Service N A Vgmstream
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
4.3 MEDIUM

File-parsing DoS requires user to open a malicious TXTP file (UI:R); impact is limited to application crash with no code execution or data exposure (A:L only).

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

5
Source Code Evidence Fetched
Sep 08, 2026 - 03:31 vuln.today
Analysis Generated
Sep 08, 2026 - 03:31 vuln.today
Severity Changed
Sep 08, 2026 - 03:22 NVD
MEDIUM LOW
CVSS changed
Sep 08, 2026 - 03:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
CVE Published
Sep 08, 2026 - 03:00 cve.org
LOW 2.1

DescriptionCVE.org

A security vulnerability has been detected in vgmstream up to r2117. Impacted is the function add_entry of the file src/meta/txtp_parser.c of the component txtp. Such manipulation of the argument range_start/range_end leads to resource consumption. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The name of the patch is 4b6a02dd1aff6428255db912563d77d4cb0a143e. It is advisable to implement a patch to correct this issue.

AnalysisAI

Resource exhaustion in vgmstream up to revision r2117 allows a remote attacker to trigger application unresponsiveness or crash by supplying a crafted TXTP playlist file containing adversarial range_start/range_end values to the add_entry parser function in src/meta/txtp_parser.c. A public proof-of-concept exists (GitHub issue #1973) and an upstream patch has been merged (commit 4b6a02dd1aff6428255db912563d77d4cb0a143e). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires the victim to open or process a specially crafted TXTP file using a vgmstream-powered application at revision r2117 or earlier. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L) yields a base score of 2.1, correctly reflecting that the sole impact is low availability degradation on the vulnerable system, with user interaction required to open a malicious file. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation The upstream fix is available in commit 4b6a02dd1aff6428255db912563d77d4cb0a143e, merged via pull request #1965 at https://github.com/vgmstream/vgmstream/pull/1965. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-86515 vulnerability details – vuln.today
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