{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-121952 exists.","exposure":"","fix":"Upgrade to a fixed version.","what":"CVE-2026-121952 is a critical vulnerability in FreeRDP, published on 4 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-121952 and fix it if it is affected.\n\nWhat it is: CVE-2026-121952 is a critical vulnerability in FreeRDP, published on 4 Nov 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-121952 exists.\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-2026-121952/ (Markdown: https://insights.sbomify.com/CVE-2026-121952/index.md)","id":"CVE-2026-121952","markdown":"https://insights.sbomify.com/CVE-2026-121952/index.md","name":"CVE-2026-121952","record":{"aliases":["DEBIAN-CVE-2026-121952","GHSA-9gqr-m6pm-p7q7","GHSA-xc85-4mqc-xgcx","UBUNTU-CVE-2026-121952"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[{"name":"FreeRDP","product":"freerdp","vendor":"freerdp"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"FreeRDP before 3.32.2 has an out-of-bounds write in the proxy because rdp_read_bitmap_cache_v2_capability_set rejects only numCellCaches values above 5, yet the bitmap cache v2 cell array is later accessed at fixed indices 0 through 4. A client connecting to the proxy can declare fewer than five cell caches in its Confirm Active, causing heap corruption, heap data leakage to the backend, or a crash.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"FreeRDP before 3.32.2 Proxy Out-of-Bounds Write via Bitmap Cache v2 Capability","id":"CVE-2026-121952","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"freerdp:freerdp","products":["freerdp:freerdp"],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"FreeRDP before 3.32.2 Use-After-Free via rdpgfx Dynamic Virtual Channel Close","id":"CVE-2026-121953"},"nickname":null,"packages":[],"prev":{"headline":"FreeRDP 3.0.0 before 3.32.2 Denial of Service via Slow-Path Input Event","id":"CVE-2026-121951"},"products":["FreeRDP"],"published":"2026-11-04","related":[{"cvss_score":9.8,"headline":"FreeRDP ExtractRunLengthRegular* out of bound read","id":"CVE-2024-32658","kev_date_added":null,"published":"2024-04-23"},{"cvss_score":9.8,"headline":"freerdp_image_copy out of bound read","id":"CVE-2024-32659","kev_date_added":null,"published":"2024-04-23"},{"cvss_score":9.8,"headline":"FreeRDP Integer overflow \u0026 OutOfBound Write in clear_decompress_residual_data","id":"CVE-2024-32039","kev_date_added":null,"published":"2024-04-22"},{"cvss_score":9.8,"headline":"FreeRDP OutOfBound Read in zgfx_decompress_segment","id":"CVE-2024-32041","kev_date_added":null,"published":"2024-04-22"},{"cvss_score":9.8,"headline":"FreeRDP Out-Of-Bounds Read in planar_skip_plane_rle","id":"CVE-2024-32458","kev_date_added":null,"published":"2024-04-22"},{"cvss_score":9.8,"headline":"FreeRDP Out-Of-Bounds Read in ncrush_decompress","id":"CVE-2024-32459","kev_date_added":null,"published":"2024-04-22"},{"cvss_score":9.8,"headline":"In FreeRDP before 2.4.0 on Windows, wf_cliprdr_server_file_contents_request in client/Windows/wf_cliprdr.c has missing input checks for a FI","id":"CVE-2021-37594","kev_date_added":null,"published":"2021-07-27"}],"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":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-11-04","vendors":["FreeRDP"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-121952/"}