What is CVE-2022-33311?

CVE-2022-33311 is a medium-severity vulnerability in Cybozu Office. CVSS score: 4.3/10. Published 2022-08-18.

How severe is CVE-2022-33311?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Cybozu Office

CVE-2022-33311

Browse restriction bypass vulnerability in Address Book of Cybozu Office 10.0.0 to 10.8.5 allows a remote authenticated attacker to obtain the data of Address Book via unspecified vectors.

Published 2022-08-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

Cybozu Office
Cybozu, Inc. Cybozu Office — versions 10.0.0 to 10.8.5

References

cs.cybozu.co.jp/2022/007584.html (Vendor Advisory)
jvn.jp/en/jp/JVN20573662/index.html (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2022-33311?: CVE-2022-33311 is a medium-severity vulnerability in Cybozu Office. CVSS score: 4.3/10. Published 2022-08-18.
How severe is CVE-2022-33311?: Medium severity. CVSS v3 base score is 4.3 out of 10.