What is CVE-2021-46389?

CVE-2021-46389 is a high-severity vulnerability in High Resolution Streaming Image Server Project, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2022-02-07.

How severe is CVE-2021-46389?

High severity. CVSS v3 base score is 7.5 out of 10.

Integer overflow in High Resolution Streaming Image Server Project

CVE-2021-46389

IIPImage High Resolution Streaming Image Server prior to commit 882925b295a80ec992063deffc2a3b0d803c3195 is affected by an integer overflow in iipsrv.fcgi through malformed HTTP query parameters.

Vulnerability class: Integer Overflow

Published 2022-02-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

High Resolution Streaming Image Server Project

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

github.com/ruven/iipsrv/commit/882925b295a80ec992063deffc2a3b0d803c3195 (Patch, Third Party Advisory)
github.com/ruven/iipsrv/commit/4ed59265fbbd636dc2fbbf325f8ea37ed300a6d9 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-46389?: CVE-2021-46389 is a high-severity vulnerability in High Resolution Streaming Image Server Project, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2022-02-07.
How severe is CVE-2021-46389?: High severity. CVSS v3 base score is 7.5 out of 10.