Security readout for executives and security teams
Plain-English summary
This issue concerns IrfanView 4.44 32-bit handling of malicious .mov files. The CVE says an attacker could execute code if a crafted video is processed by the vulnerable application. The provided sources do not include CVSS, vendor affected metadata, or a named patch.
Executive priority
Treat as a high-priority workstation exposure if IrfanView 4.44 32-bit exists in the environment. The business urgency depends on deployment scope and likelihood that users open untrusted video files.
Technical view
CVE-2017-8766 describes a crafted .mov file causing a “User Mode Write AV near NULL” in IrfanView 4.44 32-bit, with reported remote code execution impact. The bundle lacks CWE classification, CVSS scoring, detailed root cause, and vendor remediation details.
Likely exposure
Exposure is most likely on user workstations with IrfanView 4.44 32-bit installed, especially where .mov files from email, downloads, or removable media may be opened. Server exposure is unlikely unless automated workflows process untrusted MOV files with this application.
Exploitation context
The bundle marks this CVE as not in KEV, and no provided source states active exploitation. The risk is file-driven: a victim or workflow must open or process a crafted .mov file in the vulnerable IrfanView version.
Researcher notes
The public metadata is sparse. The description identifies IrfanView 4.44 32-bit and a crafted MOV trigger, but affected CPEs, CVSS, CWE, exploit maturity, and official fix details are not present in the provided bundle.
Mitigation direction
- Inventory endpoints for IrfanView 4.44 32-bit installations.
- Check IrfanView vendor guidance for fixed versions or recommended updates.
- Restrict opening untrusted .mov files in vulnerable IrfanView installations.
- Remove vulnerable IrfanView versions where business use is not required.
- Review file association policies for .mov on managed endpoints.
Validation and detection
- Confirm installed IrfanView version and architecture on managed systems.
- Check whether IrfanView is associated with .mov files.
- Review endpoint telemetry for IrfanView processing downloaded or emailed MOV files.
- Verify update or removal through software inventory tooling.
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-2017-8766 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/wlinzi/security_advisories/tree/master/CVE-2017-8766CVE 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.