What is CVE-2025-27901?

CVE-2025-27901 is a medium-severity vulnerability in IBM Db2 Recovery Expert, classified under Improper Neutralization of HTTP Headers for Scripting Syntax. CVSS score: 6.5/10. Published 2026-02-17.

How severe is CVE-2025-27901?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in IBM Db2 Recovery Expert

CVE-2025-27901

IBM DB2 Recovery Expert for LUW 5.5 Interim Fix 002 IBM Db2 Recovery Expert for Linux, UNIX and Windows is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.

EPSS: 0.002 (6.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Ibm Db2_recovery_expert — versions 5.5.0
Ibm Db2 Recovery Expert For Luw — versions 5.5 Interim Fix 002

Weakness classification (CWE)

CWE-644 — Improper Neutralization of HTTP Headers for Scripting Syntax

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-27901?: CVE-2025-27901 is a medium-severity vulnerability in IBM Db2 Recovery Expert, classified under Improper Neutralization of HTTP Headers for Scripting Syntax. CVSS score: 6.5/10. Published 2026-02-17.
How severe is CVE-2025-27901?: Medium severity. CVSS v3 base score is 6.5 out of 10.