{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63550 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-63550 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-63550 is a high-severity memory corruption vulnerability in MZ Automation GmbH libiec61850, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-63550 and fix it if it is affected.\n\nWhat it is: CVE-2026-63550 is a high-severity memory corruption vulnerability in MZ Automation GmbH libiec61850, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-63550 in the wild and no public exploit code.\n\nAffected product: MZ Automation GmbH libiec61850. 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-2026-63550/ (Markdown: https://insights.sbomify.com/CVE-2026-63550/index.md)","id":"CVE-2026-63550","markdown":"https://insights.sbomify.com/CVE-2026-63550/index.md","name":"CVE-2026-63550","record":{"aliases":["GHSA-mgh9-x48v-5vx9"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"IEC 61850 library","requires_auth":"low_privilege","summary":"A crafted BER-encoded message can cause a heap out-of-bounds read in the MMS decoder, leading to a denial-of-service in IEC 61850 systems.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"The MMS BER decoder contains a boundary-handling flaw in the processing \nof certain fields within confirmed-request messages. When a crafted \nBER-encoded element is received over an established MMS session (TCP \nport 102), the decoder may advance its internal read position \nincorrectly, leading to a heap out-of-bounds read. This condition causes\n the MMS handling process to terminate unexpectedly, resulting in a \ndenial-of-service.","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":"MZ Automation libiec61850 Out-of-bounds Read","id":"CVE-2026-63550","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"o6 Automation open62541 Integer Overflow or Wraparound","id":"CVE-2026-63559"},"packages":[],"prev":{"headline":"Information disclosure in Sharp MFPs","id":"CVE-2026-63545"},"products":["libiec61850"],"published":"2026-07-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-07-31","vendors":["MZ Automation GmbH"]},"summary":"A crafted BER-encoded message can cause a heap out-of-bounds read in the MMS decoder, leading to a denial-of-service in IEC 61850 systems.","url":"https://insights.sbomify.com/CVE-2026-63550/"}