CVE-2021-42917Public exploit

Application crash via unchecked ASX stream parsing

Published Nov 1, 2021 · Updated Nov 18, 2024

Buffer overflow in Kodi 19.0 allows context-dependent attackers to crash the application by supplying a crafted ASX playlist file. CPlayListASX::LoadData passes the attacker-controlled stream directly to TinyXML through an extraction operator that performs no bounds checking. Opening or browsing to the malicious playlist requires user interaction and causes a hang or application crash.

CVSS severity5.5
Medium
EPSS probability1.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Kodi 19.0 allows context-dependent attackers to crash the application by supplying a crafted ASX playlist file. CPlayListASX::LoadData passes the attacker-controlled stream directly to TinyXML through an extraction operator that performs no bounds checking. Opening or browsing to the malicious playlist requires user interaction and causes a hang or application crash.

The record

CVE
CVE-2021-42917
Published
Nov 1, 2021
Updated
Nov 18, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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