{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-39873 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-39873 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-39873 is a critical memory corruption vulnerability in Apple Macos, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-39873 and fix it if it is affected.\n\nWhat it is: CVE-2026-39873 is a critical memory corruption vulnerability in Apple Macos, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-39873 in the wild and no public exploit code.\n\nAffected product: Apple Macos. 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-2026-39873/ (Markdown: https://insights.sbomify.com/CVE-2026-39873/index.md)","id":"CVE-2026-39873","markdown":"https://insights.sbomify.com/CVE-2026-39873/index.md","name":"CVE-2026-39873","record":{"aliases":["GHSA-2pcr-98qw-8jgc"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"macOS SMB client","requires_auth":"none","summary":"A memory handling flaw in macOS allows a malicious SMB server to cause unexpected system termination, requiring users to apply security updates.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apple","cpe":[{"product":"macos","vendor":"apple"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Connecting to a malicious SMB server may lead to unexpected system termination.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Memory corruption in macOS","id":"CVE-2026-39873","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"apple:macos","products":["apple:macos"],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Privilege escalation in macOS","id":"CVE-2026-39874"},"packages":[],"prev":{"headline":"Use after free in Safari","id":"CVE-2026-39872"},"products":["macOS"],"published":"2026-07-27","related":[{"cvss_score":9.8,"headline":"Apple macOS Improper Authentication","id":"CVE-2026-65400","kev_date_added":"2026-08-18","published":"2026-08-06"},{"cvss_score":10,"headline":"Security feature bypass in macOS","id":"CVE-2024-44146","kev_date_added":null,"published":"2024-09-16"},{"cvss_score":10,"headline":"Security feature bypass in macOS","id":"CVE-2024-44148","kev_date_added":null,"published":"2024-09-16"},{"cvss_score":10,"headline":"Security feature bypass in macOS","id":"CVE-2023-38586","kev_date_added":null,"published":"2023-09-26"},{"cvss_score":10,"headline":"Security feature bypass in macOS","id":"CVE-2023-40455","kev_date_added":null,"published":"2023-09-26"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-1999-0590","kev_date_added":null,"published":"2000-02-04"},{"cvss_score":9.8,"headline":"Memory corruption in macOS","id":"CVE-2026-84520","kev_date_added":null,"published":"2026-09-14"}],"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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["Apple"]},"summary":"A memory handling flaw in macOS allows a malicious SMB server to cause unexpected system termination, requiring users to apply security updates.","url":"https://insights.sbomify.com/CVE-2026-39873/"}