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PatchSiren cyber security CVE debrief

CVE-2026-18554 IBM CVE debrief

IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to obtain sensitive information due to improper limitation of a pathname to a restricted directory. This vulnerability, classified under CWE-22, Improper Limitation of a Pathname to a Restricted Directory, has a high CVSS score of 7.5, indicating high severity. The vulnerability exists because the affected product does not properly restrict access to certain directories, potentially allowing attackers to access sensitive information. IBM Db2 Mirror for i administrators, security teams, and users with access to affected systems should be aware of this vulnerability and take necessary precautions. This includes reviewing system configurations, ensuring appropriate access controls are in place, and preparing for potential exploitation attempts. Vulnerability management and security teams should prioritize patching and compensating controls based on the high CVSS score and potential for sensitive information disclosure. Evidence from official CVE and NVD sources indicates a high CVSS score of 7.5 and a CWE-22 weakness. Limited details are available on affected configurations and vendor remediation. Defenders should verify affected IBM Db2 Mirror for i versions (7.4, 7.5, 7.6) and review vendor-provided mitigations or patches when available. Additional information may be required to fully understand the vulnerability's impact and to implement effective mitigations.

Vendor
IBM
Product
Db2 Mirror for i
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-14
Original CVE updated
2026-08-21
Advisory published
2026-08-14
Advisory updated
2026-08-21

Who should care

IBM Db2 Mirror for i administrators, security teams, and users with access to affected systems should be aware of this vulnerability and take necessary precautions. This includes reviewing system configurations, ensuring appropriate access controls are in place, and preparing for potential exploitation attempts. Vulnerability management and security teams should prioritize patching and compensating controls based on the high CVSS score and potential for sensitive information disclosure.

Technical summary

The vulnerability exists in IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6, allowing remote authenticated attackers to obtain sensitive information due to improper limitation of a pathname to a restricted directory. The CVSS score is 7.5, indicating a high severity. This issue is related to CWE-22, Improper Limitation of a Pathname to a Restricted Directory. Affected administrators should focus on restricting directory access and monitoring for exploitation attempts.

Defensive priority

High priority due to high CVSS score and potential for sensitive information disclosure.

Recommended defensive actions

  • Inventory and verify affected IBM Db2 Mirror for i versions (7.4, 7.5, 7.6).
  • Implement compensating controls to restrict access to sensitive directories.
  • Monitor for potential exploitation attempts.
  • Review and apply vendor-provided mitigations or patches when available.
  • Review relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

Evidence from official CVE and NVD sources indicates a high CVSS score of 7.5 and a CWE-22 weakness. Limited details are available on affected configurations and vendor remediation. Defenders should verify affected IBM Db2 Mirror for i versions (7.4, 7.5, 7.6) and review vendor-provided mitigations or patches when available. Additional information may be required to fully understand the vulnerability's impact and to implement effective mitigations.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-14T20:16:51.720Z and has not been modified since then.