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IBM Db2 Mirror CVE-2026-18554

| EUVDEUVD-2026-58770 HIGH
Path Traversal (CWE-22)
2026-08-14 ibm GHSA-cpj8-2gxp-8xp9
7.5
CVSS 3.1 · Vendor: ibm
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Severity by source

Vendor (ibm) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vuln.today AI
6.5 MEDIUM

CVE description explicitly states 'remote authenticated attacker,' warranting PR:L over NVD's PR:N; path traversal yields read-only file access so I:N and A:N.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (ibm).

CVSS VectorVendor: ibm

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Aug 14, 2026 - 20:22 vuln.today
CVE Published
Aug 14, 2026 - 19:23 nvd
HIGH 7.5

DescriptionCVE.org

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.

AnalysisAI

Sensitive file disclosure in IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6 is possible through a path traversal flaw (CWE-22) that allows attackers to escape a restricted directory boundary and read files outside the intended accessible path, resulting in high confidentiality impact. The CVE description attributes the exposure to a remote authenticated attacker, though this conflicts with the NVD-assigned CVSS vector - a discrepancy security teams must resolve before finalizing triage. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation The CVE description explicitly restricts the threat actor to a 'remote authenticated attacker,' implying valid credentials to IBM Db2 Mirror for i are a prerequisite - however, this directly contradicts the NVD CVSS vector (PR:N), and the correct authentication requirement is not independently confirmed from the available advisory text. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 7.5 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N signals a network-exploitable, low-complexity flaw with high confidentiality impact - however, a material discrepancy exists: the NVD-assigned vector sets PR:N (no authentication required) while the CVE description explicitly limits the threat actor to a 'remote authenticated attacker.' This conflict is operationally significant because it determines whether the vulnerability is exploitable pre-authentication and therefore whether it can be mass-targeted; security teams must verify the correct requirement against the full IBM advisory text at node/7283359 before using the raw CVSS score to prioritize remediation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation A vendor-released patch is confirmed available from IBM per the support advisory at https://www.ibm.com/support/pages/node/7283359. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all systems running IBM Db2 Mirror for i versions 7.4, 7.5, or 7.6 and assess their criticality and data sensitivity. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-18554 vulnerability details – vuln.today

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