{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-91964 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-91964 is a high-severity memory corruption vulnerability in FreeRDP, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-91964 and fix it if it is affected.\n\nWhat it is: CVE-2026-91964 is a high-severity memory corruption vulnerability in FreeRDP, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-91964 in the wild and no public exploit code.\n\nAffected product: FreeRDP. 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-2026-91964/ (Markdown: https://insights.sbomify.com/CVE-2026-91964/index.md)","id":"CVE-2026-91964","markdown":"https://insights.sbomify.com/CVE-2026-91964/index.md","name":"CVE-2026-91964","record":{"aliases":["DEBIAN-CVE-2026-91964","GHSA-2vf2-grvj-6g8x","GHSA-f73m-4rv5-6gp4","UBUNTU-CVE-2026-91964"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"RDP client library","requires_auth":"none","summary":"A malicious RDP server can trigger a heap buffer overflow in FreeRDP clients, potentially leading to code execution or crashes.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in nego_send_negotiation_request when processing Server Redirection PDU messages with attacker-controlled LoadBalanceInfo fields. A malicious RDP server can trigger the overflow by sending an arbitrary-length field that gets written to a fixed 512-byte buffer without validation, causing client crashes or potential code execution when chained with memory disclosure.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"FreeRDP 2.0.0 through 3.30.0 Heap Buffer Overflow via RoutingToken","id":"CVE-2026-91964","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":"WWBN AVideo through 29.0 Broken Access Control via Live Endpoints","id":"CVE-2026-91965"},"packages":[],"prev":{"headline":"FreeRDP 2.0.0 through 3.30.0 Uninitialized Heap Memory Disclosure via urbdrc","id":"CVE-2026-91963"},"products":["FreeRDP"],"published":"2026-09-15","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":"total"},"state":"PUBLISHED","updated":"2026-09-16","vendors":["FreeRDP"]},"summary":"A malicious RDP server can trigger a heap buffer overflow in FreeRDP clients, potentially leading to code execution or crashes.","url":"https://insights.sbomify.com/CVE-2026-91964/"}