CVE-2026-16832 (GCVE-0-2026-16832)

Vulnerability from cvelistv5 – Published: 2026-08-19 18:49 – Updated: 2026-08-19 19:21
VLAI
Title
Power System Buffer Overflow
Summary
IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP management network protocol. An attacker with authenticated HMC administrator access can execute arbitrary code on the service processor, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 19:21 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7283895 vendor-advisorypatch
Impacted products
Vendor Product Version CPE status
IBM Power Systems Firmware Affected: FW1120.00
Affected: FW1110.00 , ≤ FW1110.30 (semver)
Affected: FW1060.00 , ≤ FW1060.80 (semver)
Affected: FW950.00 , ≤ FW950.H2 (semver)
    cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*
    cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*
    cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*
    cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*
    cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*
    cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:*
    cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:*
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An attacker with authenticated HMC administrator access can execute arbitrary code on the service processor, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-121\", \"description\": \"CWE-121 Stack-based Buffer Overflow\"}]}], \"providerMetadata\": {\"orgId\": \"9a959283-ebb5-44b6-b705-dcc2bbced522\", \"shortName\": \"ibm\", \"dateUpdated\": \"2026-08-19T18:58:53.948Z\"}}}",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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