Security readout for executives and security teams
Plain-English summary
Bento4 1.5.1.0 has a crash-class flaw in its mp42ts tool when handling certain media descriptor data. For businesses, the main concern is service disruption if Bento4 processes untrusted or externally supplied media. The source bundle does not provide CVSS, affected version range beyond 1.5.1.0, active exploitation evidence, or a named fix.
Executive priority
Treat this as a targeted availability risk, not a confirmed critical incident. Prioritize review if Bento4 processes customer-supplied media or runs in production automation.
Technical view
The CVE describes a NULL pointer dereference in AP4_Descriptor::GetTag, reached from AP4_EsDescriptor::GetDecoderConfigDescriptor in Ap4EsDescriptor.cpp during mp42ts processing. This indicates a malformed or unexpected descriptor path can trigger a crash. The available sources do not classify a CWE, provide CVSS, or identify a patch.
Likely exposure
Exposure is most likely where Bento4 1.5.1.0 mp42ts processes untrusted media files in automated pipelines. Other Bento4 versions, packaged distributions, and downstream products are not confirmed by the source bundle.
Exploitation context
CISA KEV status is false, and the supplied sources do not state active exploitation. A public GitHub issue is referenced, but the bundle does not establish weaponized use, broad targeting, or exploitation in the wild.
Researcher notes
Evidence is sparse. The reliable facts are the affected component, version stated in the CVE description, call path, and NULL pointer dereference class. No CVSS, CWE, fix, exploit status, or broader affected range is provided in the bundle.
Mitigation direction
- Inventory Bento4 and mp42ts usage across media-processing systems.
- Check Bento4 vendor guidance and issue history for fixed releases.
- Restrict mp42ts processing of untrusted or unauthenticated media inputs.
- Run media processing in isolated, least-privilege environments.
- Monitor for repeated mp42ts crashes or null dereference failures.
Validation and detection
- Confirm whether deployed Bento4 is version 1.5.1.0.
- Identify workflows that invoke mp42ts on external media files.
- Review crash logs for AP4 descriptor-related failures.
- Check vendor repository issue 462 for remediation status.
- Verify compensating isolation around media-processing jobs.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-20092 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/axiomatic-systems/Bento4/issues/462CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.