Security readout for executives and security teams
Plain-English summary
CVE-2013-3945 is an arbitrary code execution flaw in the IrfanView MrSID plugin before version 4.37. The public detail is sparse, but the business concern is that handling malicious MrSID content could compromise a user workstation running the vulnerable plugin.
Executive priority
Prioritize remediation where IrfanView is installed on user workstations or file-processing systems that may handle untrusted imagery. Treat as a focused patching task, not a broad enterprise emergency based on current evidence.
Technical view
The CVE describes MrSID.dll before 4.37 for IrfanView allowing remote attackers to execute arbitrary code via an nband tag. No CVSS, CWE, root-cause detail, or exploit prerequisites are provided in the source bundle.
Likely exposure
Exposure is limited to environments with IrfanView using the MrSID plugin version before 4.37. Systems without that plugin, or with version 4.37 or later, are not identified as affected by the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. It only states that remote attackers can execute arbitrary code via an nband tag, without confirming public exploit use or attack volume.
Researcher notes
Evidence is incomplete: no CVSS vector, CWE, exploit maturity, or detailed advisory text is included. Analysis should stay constrained to MrSID.dll before 4.37 and the described nband tag code execution condition.
Mitigation direction
- Upgrade the IrfanView MrSID plugin to version 4.37 or later.
- Remove or disable the MrSID plugin where MrSID files are not required.
- Check IrfanView vendor history and guidance for any related plugin update notes.
- Reduce exposure to untrusted MrSID files until affected endpoints are remediated.
Validation and detection
- Inventory endpoints with IrfanView installed and identify MrSID.dll presence.
- Verify MrSID.dll version is 4.37 or later on in-scope systems.
- Confirm security tooling can detect outdated IrfanView plugin files.
- Review file-handling workflows that process or open MrSID content.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2013-3945 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://exchange.xforce.ibmcloud.com/vulnerabilities/89805CVE reference · x_refsource_MISC
- https://www.irfanview.com/history_old.htmCVE reference · x_refsource_CONFIRM
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.