Security readout for executives and security teams
Plain-English summary
CVE-2021-46389 affects IIPImage High Resolution Streaming Image Server builds before the referenced upstream commit. Malformed HTTP query parameters can trigger an integer overflow in iipsrv.fcgi. The public record does not provide CVSS, impact detail, or confirmed exploitation, so urgency depends on whether the service is exposed.
Executive priority
Treat as an inventory-and-remediation item, with higher priority for public image streaming services. The absence of CVSS and exploitation evidence lowers certainty, not necessarily risk.
Technical view
The issue is an integer overflow in iipsrv.fcgi query-parameter handling. The CVE description identifies versions before commit 882925b295a80ec992063deffc2a3b0d803c3195 as affected. Public metadata does not specify CWE, affected version numbers, exploit maturity, or precise security impact.
Likely exposure
Exposure is likely limited to organizations running IIPImage/iipsrv.fcgi, especially internet-facing image streaming endpoints using code before the referenced commit. The source bundle does not provide package names, CPEs, or version ranges.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source claims active exploitation. The known trigger condition is malformed HTTP query parameters, but the public record does not describe reliable impact or exploitability.
Researcher notes
The public record is sparse: no CVSS, CWE, CPE, or impact statement beyond integer overflow via malformed HTTP query parameters. Analysis should focus on the referenced commits and deployed iipsrv.fcgi exposure.
Mitigation direction
- Inventory IIPImage and iipsrv.fcgi deployments, including embedded or legacy image services.
- Upgrade to commit 882925b295a80ec992063deffc2a3b0d803c3195 or newer, following upstream guidance.
- Review the referenced upstream commits for the exact corrected query handling.
- Prioritize remediation for internet-facing iipsrv.fcgi endpoints.
Validation and detection
- Confirm deployed IIPImage code is at or after the referenced fixed commit.
- Check web server routing for exposed iipsrv.fcgi endpoints.
- Review change history for commit 882925b295a80ec992063deffc2a3b0d803c3195 in deployed builds.
- Document any legacy deployments where version or commit provenance is unknown.
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-2021-46389 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/ruven/iipsrv/commit/882925b295a80ec992063deffc2a3b0d803c3195CVE reference · x_refsource_MISC
- https://github.com/ruven/iipsrv/commit/4ed59265fbbd636dc2fbbf325f8ea37ed300a6d9CVE 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.