What is CVE-2026-3856?

CVE-2026-3856 is a medium-severity vulnerability in IBM Db2 Recovery Expert, classified under CWE-353. CVSS score: 5.3/10. Published 2026-03-17.

How severe is CVE-2026-3856?

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

Vulnerability in IBM Db2 Recovery Expert

CVE-2026-3856

IBM Db2 Recovery Expert for Linux, UNIX and Windows 5.5 IF 2 could allow an attacker to modify or corrupt data due to an insecure mechanism used for verifying the integrity of the data during transmission.

Published 2026-03-17 · 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: 0.002 (7.9th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

IBM Db2 Recovery Expert — versions 5.5 IF 2
IBM Db2 Recovery Expert — versions 5.5.0

Weakness classification (CWE)

CWE-353

References

www.ibm.com/support/pages/node/7266272 (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-3856?: CVE-2026-3856 is a medium-severity vulnerability in IBM Db2 Recovery Expert, classified under CWE-353. CVSS score: 5.3/10. Published 2026-03-17.
How severe is CVE-2026-3856?: Medium severity. CVSS v3 base score is 5.3 out of 10.