{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89028 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-89028 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-89028 is a high-severity memory corruption vulnerability in MikroTik RouterOS, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-89028 and fix it if it is affected.\n\nWhat it is: CVE-2026-89028 is a high-severity memory corruption vulnerability in MikroTik RouterOS, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-89028 in the wild and no public exploit code.\n\nAffected product: MikroTik RouterOS. 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-2026-89028/ (Markdown: https://insights.sbomify.com/CVE-2026-89028/index.md)","id":"CVE-2026-89028","markdown":"https://insights.sbomify.com/CVE-2026-89028/index.md","name":"CVE-2026-89028","record":{"aliases":["GHSA-2jvh-jvq5-35jq"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"MikroTik RouterOS","requires_auth":"none","summary":"Remote attackers can corrupt heap memory in MikroTik RouterOS via crafted SMB1 requests, potentially leading to code execution or service disruption.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"MikroTik RouterOS before 7.24 contains a heap memory corruption vulnerability in the userspace SMB daemon that allows remote attackers to corrupt adjacent heap memory by supplying a crafted uniPwdLen value in the SMB1 SessionSetupAndX handler. An attacker can send a malformed SMB1 request with a uniPwdLen field that triggers an integer underflow, causing the resulting value to be used as the copy length in a memory copy operation into a smaller heap buffer, corrupting adjacent heap memory.","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":"MikroTik RouterOS \u003c 7.24 Heap Corruption via SMB1 SessionSetupAndX","id":"CVE-2026-89028","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":"Blog2Social WordPress Plugin \u003c 9.1.0 User Enumeration via AJAX Handler","id":"CVE-2026-89029"},"packages":[],"prev":{"headline":"miniOrange JWT Authentication for WP REST APIs \u003c 4.8.0 Authentication Downgrade","id":"CVE-2026-89027"},"products":["RouterOS"],"published":"2026-09-16","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":"2026-10-01","vendors":["MikroTik"]},"summary":"Remote attackers can corrupt heap memory in MikroTik RouterOS via crafted SMB1 requests, potentially leading to code execution or service disruption.","url":"https://insights.sbomify.com/CVE-2026-89028/"}