{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55827 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-55827 is a high-severity memory corruption vulnerability in Freerdp Freerdp, published on 10 Jul 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-2026-55827 and fix it if it is affected.\n\nWhat it is: CVE-2026-55827 is a high-severity memory corruption vulnerability in Freerdp Freerdp, published on 10 Jul 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55827 exists.\n\nAffected product: Freerdp 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-2026-55827/ (Markdown: https://insights.sbomify.com/CVE-2026-55827/index.md)","id":"CVE-2026-55827","markdown":"https://insights.sbomify.com/CVE-2026-55827/index.md","name":"CVE-2026-55827","record":{"aliases":["ALSA-2026:50747","DEBIAN-CVE-2026-55827","GHSA-c495-h83v-3prp","RHSA-2026:50747","RHSA-2026:54667","RLSA-2026:50747","UBUNTU-CVE-2026-55827"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"FreeRDP client","requires_auth":"none","summary":"A malicious RDP server can trigger a heap out-of-bounds write in FreeRDP clients using the non-default RemoteFX cache option, potentially leading to code execution.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"freerdp","vendor":"freerdp"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-131","name":"Incorrect Calculation of Buffer Size"}],"description":"FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.1, FreeRDP clients launched with the non-default /cache:codec:rfx option pass desktop stride and height to RemoteFX decoding for Cache Bitmap V3 data while allocating bitmap-\u003edata only for the smaller DstWidth and DstHeight in gdi_Bitmap_Decompress, allowing a malicious RDP server to trigger a heap out-of-bounds write with attacker-controlled offset and content. This issue is fixed in version 3.27.1.","ecosystems":["AlmaLinux:10","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux_eus:10.0","Rocky Linux:10"],"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: Heap out-of-bounds write in RemoteFX (RFX) Cache Bitmap V3 decode","id":"CVE-2026-55827","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"freerdp:freerdp","products":["freerdp:freerdp"],"type":"memory_corruption","year":"2026"},"n_packages":29,"n_references":4,"next":{"headline":"qbee transport: Symlink-chain path traversal in tar extraction (one level outside destination)","id":"CVE-2026-55828"},"packages":[{"ecosystem":"AlmaLinux:10","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp","purl":"pkg:rpm/almalinux/freerdp","source":"ALSA-2026:50747"},{"ecosystem":"AlmaLinux:10","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-devel","purl":"pkg:rpm/almalinux/freerdp-devel","source":"ALSA-2026:50747"},{"ecosystem":"AlmaLinux:10","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-libs","purl":"pkg:rpm/almalinux/freerdp-libs","source":"ALSA-2026:50747"},{"ecosystem":"AlmaLinux:10","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-server","purl":"pkg:rpm/almalinux/freerdp-server","source":"ALSA-2026:50747"},{"ecosystem":"AlmaLinux:10","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"libwinpr","purl":"pkg:rpm/almalinux/libwinpr","source":"ALSA-2026:50747"},{"ecosystem":"AlmaLinux:10","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"libwinpr-devel","purl":"pkg:rpm/almalinux/libwinpr-devel","source":"ALSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp","purl":"pkg:rpm/redhat/freerdp","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-debuginfo","purl":"pkg:rpm/redhat/freerdp-debuginfo","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-debugsource","purl":"pkg:rpm/redhat/freerdp-debugsource","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-devel","purl":"pkg:rpm/redhat/freerdp-devel","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-libs","purl":"pkg:rpm/redhat/freerdp-libs","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-libs-debuginfo","purl":"pkg:rpm/redhat/freerdp-libs-debuginfo","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-server","purl":"pkg:rpm/redhat/freerdp-server","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp-server-debuginfo","purl":"pkg:rpm/redhat/freerdp-server-debuginfo","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"libwinpr","purl":"pkg:rpm/redhat/libwinpr","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"libwinpr-debuginfo","purl":"pkg:rpm/redhat/libwinpr-debuginfo","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"libwinpr-devel","purl":"pkg:rpm/redhat/libwinpr-devel","source":"RHSA-2026:50747"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"freerdp","purl":"pkg:rpm/redhat/freerdp","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"freerdp-debuginfo","purl":"pkg:rpm/redhat/freerdp-debuginfo","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"freerdp-debugsource","purl":"pkg:rpm/redhat/freerdp-debugsource","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"freerdp-devel","purl":"pkg:rpm/redhat/freerdp-devel","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"freerdp-libs","purl":"pkg:rpm/redhat/freerdp-libs","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"freerdp-libs-debuginfo","purl":"pkg:rpm/redhat/freerdp-libs-debuginfo","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"freerdp-server","purl":"pkg:rpm/redhat/freerdp-server","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"freerdp-server-debuginfo","purl":"pkg:rpm/redhat/freerdp-server-debuginfo","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"libwinpr","purl":"pkg:rpm/redhat/libwinpr","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"libwinpr-debuginfo","purl":"pkg:rpm/redhat/libwinpr-debuginfo","source":"RHSA-2026:54667"},{"ecosystem":"Red Hat:enterprise_linux_eus:10.0","fixed":["2:3.10.3-3.el10_0.10"],"introduced":["0"],"last_affected":[],"package":"libwinpr-devel","purl":"pkg:rpm/redhat/libwinpr-devel","source":"RHSA-2026:54667"},{"ecosystem":"Rocky Linux:10","fixed":["2:3.10.3-12.el10_2.7"],"introduced":["0"],"last_affected":[],"package":"freerdp","purl":"pkg:rpm/rocky-linux/freerdp?distro=rocky-linux-10\u0026epoch=2","source":"RLSA-2026:50747"}],"prev":{"headline":"The GTM Server Side plugin by stape.io implements server-side tracking on WordPress websites.","id":"CVE-2026-55826"},"products":["FreeRDP"],"published":"2026-07-10","related":[{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-2021-37594","kev_date_added":null,"published":"2021-07-27"},{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-2021-37595","kev_date_added":null,"published":"2021-07-27"},{"cvss_score":9.4,"headline":"FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr","id":"CVE-2026-67305","kev_date_added":null,"published":"2026-08-01"},{"cvss_score":9.3,"headline":"FreeRDP before 3.29.0 TLS Certificate Identity Validation Bypass","id":"CVE-2026-66402","kev_date_added":null,"published":"2026-08-01"},{"cvss_score":9.3,"headline":"FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection","id":"CVE-2026-67289","kev_date_added":null,"published":"2026-08-01"},{"cvss_score":9.3,"headline":"FreeRDP before 3.29.0 WebSocket Ping Buffer Over-disclosure","id":"CVE-2026-67292","kev_date_added":null,"published":"2026-08-01"},{"cvss_score":9.3,"headline":"FreeRDP before 3.29.0 Improper Certificate Hostname Validation","id":"CVE-2026-67293","kev_date_added":null,"published":"2026-08-01"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"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":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["FreeRDP"]},"summary":"A malicious RDP server can trigger a heap out-of-bounds write in FreeRDP clients using the non-default RemoteFX cache option, potentially leading to code execution.","url":"https://insights.sbomify.com/CVE-2026-55827/"}