Security readout for executives and security teams
Plain-English summary
This CVE affects XnView Classic for Windows 2.40 when handling a crafted .rle image file. The documented impact is denial of service, with unspecified other impact also mentioned. Business risk is mainly endpoint disruption from users opening untrusted files; the sources do not show active exploitation or a confirmed patch.
Executive priority
Treat this as a targeted hygiene issue, not an emergency based on current evidence. Prioritize if the organization still uses XnView Classic 2.40 or routinely receives external image files. The lack of severity and fix data means teams should verify vendor guidance before broad action.
Technical view
The CVE describes attacker-controlled data from a crafted RLE file influencing branch selection in COMCTL32 Tab_OnGetItem, causing a fault in XnView Classic 2.40. The record has no CVSS score, CWE, complete affected CPEs, or vendor remediation details in the provided sources.
Likely exposure
Exposure is likely limited to Windows endpoints where XnView Classic 2.40 is installed and used to open .rle files, especially files received from email, downloads, or shared repositories. The source bundle does not identify other affected versions or products.
Exploitation context
The sources describe a crafted-file attack requiring the vulnerable application to process a malicious .rle file. CISA KEV status is false in the bundle, and no cited source in the bundle states active exploitation in the wild.
Researcher notes
Evidence is sparse. The CVE record identifies XnView Classic 2.40 and a crafted .rle denial-of-service condition, but affected metadata is incomplete and the impact beyond DoS is unspecified. Do not assume code execution, additional versions, or a patch without independent vendor confirmation.
Mitigation direction
- Inventory XnView Classic installations and identify version 2.40 on Windows endpoints.
- Restrict handling of untrusted .rle files until vendor guidance is confirmed.
- Check XnView or trusted vendor channels for updates or replacement guidance.
- Use endpoint controls to block suspicious image attachments where practical.
Validation and detection
- Confirm whether XnView Classic 2.40 exists on managed Windows assets.
- Review file association settings for .rle files on affected endpoints.
- Check email, web, and endpoint telemetry for suspicious .rle file handling.
- Document any compensating controls applied to untrusted image files.
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-2017-10764 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-2017-10764CVE 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.