EUVD-2026-94963
GHSA-w4qj-mcfp-cvf5
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Remote unauthenticated reach (AV:N/PR:N/UI:N) per description; out-of-bounds write most reliably crashes the appliance (A:H) with limited C/I exposure.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
2DescriptionCVE.org
IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to cause memory corruption due to an out-of-bounds write.
AnalysisAI
An out-of-bounds write in IBM DataPower Gateway (10.5.0.0 through 10.5.0.22, 10.6.0.0 through 10.6.0.10, 10.6.1 through 10.6.6, and 11.0.0.0 through 11.0.0.2) allows an unauthenticated remote attacker to corrupt gateway memory, most reliably causing a denial of service and potentially enabling partial confidentiality or integrity compromise. The flaw carries a CVSS 3.1 base score of 8.6 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H), and the vector's PR:N/UI:N components confirm no credentials or user interaction are required to reach the vulnerable code - the practical limiting factor is whether the attacker's network can reach a DataPower service listener. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The description specifies no configuration precondition, feature flag, or deployment mode - it states a remote attacker can cause memory corruption via an out-of-bounds write, and the CVSS vector (AV:N/PR:N/UI:N) supports unauthenticated remote reachability against affected versions (10.5.0.0-10.5.0.22, 10.6.0.0-10.6.0.10, 10.6.1-10.6.6, 11.0.0.0-11.0.0.2). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H, base 8.6) indicates a network-reachable, low-complexity flaw requiring no privileges or user interaction, with high availability impact and partial confidentiality/integrity impact - consistent with a remotely triggerable out-of-bounds write (CWE-787) that most reliably crashes the gateway. … 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 | IBM has released a fix for CVE-2026-16163 (patch status: available from vendor); because the provided intelligence does not specify an exact fixed firmware build, obtain the correct target level and installation steps directly from the IBM Support advisory at https://www.ibm.com/support/pages/node/7289775 and apply the vendor-recommended firmware update to any gateway running 10.5.0.0-10.5.0.22, 10.6.0.0-10.6.0.10, 10.6.1-10.6.6, or 11.0.0.0-11.0.0.2. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every DataPower Gateway instance and identify which ones run the affected builds (10.5.0.0 through 10.5.0.22, 10.6.0.0 through 10.6.0.10, 10.6.1 through 10.6.6, and 11.0.0.0 through 11.0.0.2); in parallel, tighten network access controls so that only trusted source ranges can reach DataPower service listeners, and enable alerting on unexpected gateway restarts or crash signatures. …
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External POC / Exploit Code
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