Security readout for executives and security teams
CVE-2025-55639 is a denial-of-service issue in GPAC MP4Box v2.4. A specially crafted MP4 file can crash processing by triggering a NULL pointer dereference. The main business risk is disruption to services or workflows that automatically process untrusted media files. Exposure is most likely in systems running GPAC MP4Box v2.4 or embedded GPAC components that ingest, validate, transform, or package MP4 files from users or external parties. Treat as a near-term operational resilience issue, not a data-theft emergency. Prioritize environments that automatically process customer-supplied MP4 files or where crashes affect production media services. Mitigation focus: Identify MP4Box/GPAC deployments and confirm whether v2.4 is used.; Apply the upstream GPAC fix commit or vendor-provided patched release when available.; Restrict untrusted MP4 processing until patched, especially in automated upload pipelines..
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
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2025-55639 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H2.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/gpac/gpac/issues/3260CVE reference, mitre
- https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/23/23_poc.mp4CVE reference, mitre
- https://github.com/gpac/gpac/commit/027ce139dda498ee95df36db9f9f6f3cadce8ec9CVE reference, mitre
- https://infosec.exchange/@sigdevel/116769184815236865CVE reference, mitre
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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.