{"answers":{"affected":"It affects 10 products.","exploited":"There is no known exploitation of CVE-2026-17042 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-17042 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-17042 is a high-severity memory corruption vulnerability in IBM Power Systems Firmware, published on 19 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-17042 and fix it if it is affected.\n\nWhat it is: CVE-2026-17042 is a high-severity memory corruption vulnerability in IBM Power Systems Firmware, published on 19 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-17042 in the wild and no public exploit code.\n\nAffected product: IBM Power Systems Firmware. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-17042/ (Markdown: https://insights.sbomify.com/CVE-2026-17042/index.md)","id":"CVE-2026-17042","markdown":"https://insights.sbomify.com/CVE-2026-17042/index.md","name":"CVE-2026-17042","record":{"aliases":["GHSA-rcv3-hw8m-43fg"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["denial_of_service","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"IBM Power Systems Firmware","requires_auth":"low_privilege","summary":"A root user in a guest partition can crash the host firmware via crafted NVRAM, causing denial of service and potential memory corruption on OpenPOWER systems.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"power_hardware_management_console_\\(7063-cr2\\)_firmware","vendor":"ibm"},{"product":"power_system_ac922_\\(8335-gth\\)_firmware","vendor":"ibm"},{"product":"power_system_ac922_\\(8335-gtx\\)_firmware","vendor":"ibm"},{"product":"power_system_e950_\\(9040-mr9\\)_firmware","vendor":"ibm"},{"product":"power_system_e980_\\(9080-m9s\\)_firmware","vendor":"ibm"},{"product":"power_system_h922_\\(9223-22s\\)_firmware","vendor":"ibm"},{"product":"power_system_h924_\\(9223-42s\\)_firmware","vendor":"ibm"},{"product":"power_system_s914_\\(9009-41g\\)_firmware","vendor":"ibm"},{"product":"power_system_s922_\\(9009-22g\\)_firmware","vendor":"ibm"},{"product":"power_system_s924_\\(9009-42g\\)_firmware","vendor":"ibm"}],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"IBM Power Systems Firmware FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) is affected by a vulnerability in host firmware NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM image, causing the host firmware boot stage to crash with possible memory corruption. This condition persists until operator intervention — clearing NVRAM via the service processor — to restore normal operation. This vulnerability only affects OpenPOWER systems; systems running PowerVM are not affected. Successful exploitation results in an integrity and availability impact to the managed system.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Power System Out-of-bounds Read","id":"CVE-2026-17042","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"IBM i is Affected By Multiple Vulnerabilities in Digital Certificate Manager","id":"CVE-2026-17043"},"packages":[],"prev":{"headline":"Vulnerabilities in IBM AIX and PowerVM VIOS","id":"CVE-2026-17040"},"products":["Power Systems Firmware"],"published":"2026-08-19","related":[{"cvss_score":8.2,"headline":"Power System Integer Overflow","id":"CVE-2026-16933","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":8.2,"headline":"Power System Buffer Overflow","id":"CVE-2026-17093","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":8.2,"headline":"Power System Out-of-bounds Write","id":"CVE-2026-17100","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":8.1,"headline":"Power System Incorrect Authorization","id":"CVE-2026-17429","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":5.3,"headline":"Information disclosure in HMC","id":"CVE-2021-38960","kev_date_added":null,"published":"2022-02-04"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-19","vendors":["IBM"]},"summary":"A root user in a guest partition can crash the host firmware via crafted NVRAM, causing denial of service and potential memory corruption on OpenPOWER systems.","url":"https://insights.sbomify.com/CVE-2026-17042/"}