{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40277 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40277 is a high-severity vulnerability in Linux, published on 6 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-40277 and fix it if it is affected.\n\nWhat it is: CVE-2025-40277 is a high-severity vulnerability in Linux, published on 6 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-40277 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2025-40277/ (Markdown: https://insights.sbomify.com/CVE-2025-40277/index.md)","id":"CVE-2025-40277","markdown":"https://insights.sbomify.com/CVE-2025-40277/index.md","name":"CVE-2025-40277","record":{"aliases":["BELL-CVE-2025-40277","DEBIAN-CVE-2025-40277","GHSA-6jjc-g279-fq4c","ROOT-OS-DEBIAN-12-CVE-2025-40277","ROOT-OS-DEBIAN-13-CVE-2025-40277","ROOT-OS-UBUNTU-2204-CVE-2025-40277","ROOT-OS-UBUNTU-2404-CVE-2025-40277","UBUNTU-CVE-2025-40277"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A local attacker can trigger an integer overflow in the vmwgfx driver, leading to out-of-bounds memory access and potential code execution or system crash.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE\n\nThis data originates from userspace and is used in buffer offset\ncalculations which could potentially overflow causing an out-of-bounds\naccess.","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":"drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE","id":"CVE-2025-40277","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"net: sched: act_ife: initialize struct tc_ife to fix KMSAN kernel-infoleak","id":"CVE-2025-40278"},"packages":[],"prev":{"headline":"drm/panthor: Flush shmem writes before mapping buffers CPU-uncached","id":"CVE-2025-40276"},"products":["Linux"],"published":"2025-12-06","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A local attacker can trigger an integer overflow in the vmwgfx driver, leading to out-of-bounds memory access and potential code execution or system crash.","url":"https://insights.sbomify.com/CVE-2025-40277/"}