Security readout for executives and security teams
Plain-English summary
CVE-2020-23567 is a denial-of-service issue in IrfanView v4.53 triggered by a crafted JPEG 2000 file. In business terms, opening a malicious image could crash or disrupt the application, not necessarily compromise the whole device based on the provided sources.
Executive priority
Handle as a targeted workstation resilience issue, not a confirmed breach-level emergency. Prioritize if IrfanView v4.53 is widely deployed or used to inspect externally supplied images.
Technical view
The CVE describes an integer divide-by-zero condition in IrfanView v4.53, related to JPEG2000!ShowPlugInSaveOptions_W, reachable through a crafted JPEG 2000 file. The public record does not provide CVSS, CWE, affected CPEs, or a vendor fix statement.
Likely exposure
Exposure is limited to environments using IrfanView v4.53, especially where users open untrusted JPEG 2000 images from email, downloads, shared folders, or customer submissions. The affected-product metadata in the source bundle is incomplete.
Exploitation context
The CVE record references public proof-of-concept research, but the bundle does not show CISA KEV listing or active exploitation. Treat exploit status as public research available, not confirmed in-the-wild exploitation.
Researcher notes
Key gaps are missing CVSS, CWE, CPE, and vendor remediation details. The strongest source evidence is the CVE description and referenced public research path identifying a JPEG 2000 divide-by-zero denial-of-service condition.
Mitigation direction
- Inventory endpoints for IrfanView v4.53 usage.
- Check IrfanView vendor guidance for fixed versions or recommended remediation.
- Restrict opening untrusted JPEG 2000 files in IrfanView.
- Use safer file-handling workflows for externally supplied images.
- Prioritize remediation where image handling is part of business operations.
Validation and detection
- Confirm installed IrfanView versions across managed endpoints.
- Identify teams that process untrusted or external image files.
- Review security controls for downloaded and emailed JPEG 2000 files.
- Check vendor advisories before approving remediation.
- Track this CVE separately because CVSS and CPE data are missing.
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-2020-23567 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/KamasuOri/publicResearch/tree/master/poc/irfanview/2CVE 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.