What is CVE-2021-39367?

CVE-2021-39367 is a medium-severity vulnerability in Canon Oce Print Exec Workgroup, classified under Improper Encoding or Escaping of Output. CVSS score: 5.3/10. Published 2021-08-23.

How severe is CVE-2021-39367?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Canon Oce Print Exec Workgroup

CVE-2021-39367

Canon Oce Print Exec Workgroup 1.3.2 allows Host header injection.

Published 2021-08-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Canon Oce Print Exec Workgroup — versions 1.3.2

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

References

github.com/IthacaLabs/Canon/tree/main/OCE_Print_Exec_Workgroup_Version_1_3_2/HHI (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-39367?: CVE-2021-39367 is a medium-severity vulnerability in Canon Oce Print Exec Workgroup, classified under Improper Encoding or Escaping of Output. CVSS score: 5.3/10. Published 2021-08-23.
How severe is CVE-2021-39367?: Medium severity. CVSS v3 base score is 5.3 out of 10.