Security readout for executives and security teams
Plain-English summary
This CVE describes a denial-of-service condition in Bento4 1.6.0-638. A crafted media file may cause memory allocation exhaustion during parsing, potentially crashing or disrupting a service that processes that input.
Executive priority
Prioritize if the business accepts or processes untrusted media at scale. For exposed media workflows, treat this as a service-availability risk requiring inventory, containment, and vendor-guidance review.
Technical view
The issue is reported in Bento4 1.6.0-638 in AP4_Array<AP4_TrunAtom::Entry>::EnsureCapacity in Ap4Array.h:172. The public description says allocator out-of-memory can occur, demonstrated by GPAC, causing DoS. No CVSS, CWE, patch version, or affected CPE data is provided.
Likely exposure
Exposure is most likely in systems using Bento4 1.6.0-638 to parse or process untrusted media files. The source bundle does not establish broader product impact beyond Bento4.
Exploitation context
CISA KEV is false, and the supplied sources do not claim active exploitation. Public evidence supports denial of service, not code execution or data theft. The GPAC mention appears to describe a demonstration context, not confirmed affected-product scope.
Researcher notes
The record is sparse: no CVSS vector, CWE, affected CPEs, or named patch is included. Analysis should avoid expanding scope beyond Bento4 1.6.0-638 unless upstream issue details or vendor advisories confirm more.
Mitigation direction
- Inventory services, containers, and build dependencies for Bento4 1.6.0-638.
- Check Bento4 upstream guidance and issue history for fixed versions or recommended handling.
- Isolate media parsing workers from critical application processes.
- Apply memory and runtime limits to untrusted media processing jobs.
- Restrict unauthenticated or bulk media uploads where Bento4 processing is reachable.
Validation and detection
- Confirm whether Bento4 1.6.0-638 is present in SBOMs, images, or build manifests.
- Map which public routes or internal jobs process user-supplied media through Bento4.
- Review logs for Bento4 parser crashes, worker restarts, or memory exhaustion events.
- Verify media-processing workers have resource limits and failure isolation.
- Confirm any vendor-recommended update or mitigation has been applied.
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-2021-40941 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/644CVE 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.