Analyst readout for executives and security teams
Plain-English summary
This issue can let a remote attacker crash software that processes media with vulnerable Libav code. The supplied sources describe denial of service only, not data theft or system takeover. Business impact depends on whether public-facing or automated media-processing services use Libav 11.8.
Executive priority
Treat as an availability risk for media-processing workloads. Prioritize if media ingestion is customer-facing, business-critical, or automated at scale. Evidence is insufficient to rate it as a data breach or code execution issue.
Technical view
CVE-2016-9825 is a crash condition in libswscale/utils.c in Libav 11.8 involving a left shift of a negative value. The record describes remote denial of service vectors. No CVSS, CWE, complete affected-product metadata, or named fixed version is included in the supplied bundle.
Likely exposure
Exposure is most likely where Libav 11.8 or its libswscale component processes untrusted media. The bundle does not confirm downstream packages, full affected version ranges, or whether related forks are affected.
Exploitation context
The CVE states remote attackers can cause a crash. CISA KEV is false in the bundle, and the provided sources do not show active exploitation or exploit availability.
Researcher notes
The public record is sparse: description, two references, no CVSS, no CWE, and no explicit fix details in the supplied bundle. Analysis should stay limited to Libav 11.8 and denial-of-service impact unless vendor advisories add detail.
Mitigation direction
- Inventory systems that use Libav or libswscale for media processing.
- Check vendor or distribution advisories for fixed Libav packages.
- Prioritize updates on internet-facing or automated media ingestion services.
- Isolate media processing workers and enable automatic restart where feasible.
- Limit untrusted media intake until package status is confirmed.
Validation and detection
- Confirm whether Libav 11.8 is deployed in production or build artifacts.
- Map services that process user-supplied or remote media files.
- Review crash telemetry for libswscale or media-processing worker failures.
- Verify vendor package status before marking systems remediated.
- Document compensating controls if no vendor fix is available.
Public sources used
Based on public source material and reviewed before publication.
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-2016-9825 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
- 94732CVE reference · vdb-entry, x_refsource_BID
- https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/CVE 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.