What is CVE-2021-20536?

CVE-2021-20536 is a medium-severity vulnerability in IBM Spectrum Protect Plus, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.2/10. Published 2021-04-26.

How severe is CVE-2021-20536?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Information disclosure in IBM Spectrum Protect Plus

CVE-2021-20536

IBM Spectrum Protect Plus File Systems Agent 10.1.6 and 10.1.7 stores potentially sensitive information in log files that could be read by a local user. IBM X-Force ID: 198836.

Published 2021-04-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (16.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

IBM Spectrum Protect Plus — versions 10.1.6, 10.1.7
IBM Spectrum Protect Plus — versions 10.1.6, 10.1.7
Microsoft Windows

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

www.ibm.com/support/pages/node/6445739 (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/198836 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20536?: CVE-2021-20536 is a medium-severity vulnerability in IBM Spectrum Protect Plus, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.2/10. Published 2021-04-26.
How severe is CVE-2021-20536?: Medium severity. CVSS v3 base score is 6.2 out of 10.