{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-91948 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-91948 is a high-severity memory corruption vulnerability in FreeRDP, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-91948 and fix it if it is affected.\n\nWhat it is: CVE-2026-91948 is a high-severity memory corruption vulnerability in FreeRDP, published on 15 Sep 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-2026-91948 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-2026-91948/ (Markdown: https://insights.sbomify.com/CVE-2026-91948/index.md)","id":"CVE-2026-91948","markdown":"https://insights.sbomify.com/CVE-2026-91948/index.md","name":"CVE-2026-91948","record":{"aliases":["DEBIAN-CVE-2026-91948","GHSA-9jcm-x588-gh26","GHSA-vg28-cmpq-3hp8","UBUNTU-CVE-2026-91948"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"FreeRDP library","requires_auth":"low_privilege","summary":"Authenticated clients can trigger heap corruption in FreeRDP server-side channel handling, potentially leading to remote code execution.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"}],"description":"FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in server-side static virtual channel handling when CHANNEL_OPTION_SHOW_PROTOCOL is enabled. Authenticated clients can queue oversized channel messages that cause buffer underflow and corrupt heap memory including live pointers, potentially enabling code execution.","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 before 3.31.0 Out-of-bounds Write via SHOW_PROTOCOL","id":"CVE-2026-91948","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass","id":"CVE-2026-91949"},"packages":[],"prev":{"headline":"FreeRDP Server before 3.31.0 Use-After-Free via DRDYNVC","id":"CVE-2026-91947"},"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":"2026-09-17","vendors":["FreeRDP"]},"summary":"Authenticated clients can trigger heap corruption in FreeRDP server-side channel handling, potentially leading to remote code execution.","url":"https://insights.sbomify.com/CVE-2026-91948/"}