CVE-2025-36425Network attack vector

Authenticated disclosure of HADR-stored passwords

Published Feb 17, 2026 · Updated Feb 17, 2026

Plaintext password storage in IBM Db2 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3 allows remote authenticated users to read sensitive data. IBM has not disclosed which HADR resource stores the password or how an authenticated request exposes it, stating that key functionality and replication steps are withheld. The attacker must have a Db2 account and reach an HADR deployment with reads on standby enabled; exposed credentials grant access to password-protected resources.

CVSS severity5.3
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Plaintext password storage in IBM Db2 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3 allows remote authenticated users to read sensitive data. IBM has not disclosed which HADR resource stores the password or how an authenticated request exposes it, stating that key functionality and replication steps are withheld. The attacker must have a Db2 account and reach an HADR deployment with reads on standby enabled; exposed credentials grant access to password-protected resources.

The record

CVE
CVE-2025-36425
Published
Feb 17, 2026
Updated
Feb 17, 2026
Vendor
IBM
Product
IBM Db2 for Linux, UNIX, and Windows
Classifications
CWE-256, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.5.0 <=11.5.9
  2. Affected versionversion=12.1.0 <=12.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Db2 for Linux, UNIX, and Windowsversion=11.5.0 <=11.5.9; version=12.1.0 <=12.1.3

Published CVSS scores

5.3IBMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-256Plaintext Storage of a Password
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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