{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-48852 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-48852 is a low-severity denial of service vulnerability in PuTTY, published on 25 May 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-2026-48852 and fix it if it is affected.\n\nWhat it is: CVE-2026-48852 is a low-severity denial of service vulnerability in PuTTY, published on 25 May 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-2026-48852 in the wild and no public exploit code.\n\nAffected product: PuTTY. 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-2026-48852/ (Markdown: https://insights.sbomify.com/CVE-2026-48852/index.md)","id":"CVE-2026-48852","markdown":"https://insights.sbomify.com/CVE-2026-48852/index.md","name":"CVE-2026-48852","record":{"aliases":["DEBIAN-CVE-2026-48852","GHSA-rx8r-f2xx-98h9","UBUNTU-CVE-2026-48852"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"SSH client","requires_auth":"none","summary":"An attacker can cause a denial of service in PuTTY via an assertion failure during ECDSA signature verification.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"putty","vendor":"putty"}],"cvss":{"score":3.7,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.","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":"Denial of service in PuTTY","id":"CVE-2026-48852","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Remote code execution and denial of service via unsafe Erlang term deserialization in elixir-grpc/grpc","id":"CVE-2026-48853"},"packages":[],"prev":{"headline":"Security feature bypass in PuTTY","id":"CVE-2026-48851"},"products":["PuTTY"],"published":"2026-05-25","related":[{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2004-1008","kev_date_added":null,"published":"2004-12-01"},{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-2019-17067","kev_date_added":null,"published":"2019-10-01"},{"cvss_score":8.1,"headline":"Auth bypass in n/a","id":"CVE-2021-36367","kev_date_added":null,"published":"2021-07-09"},{"cvss_score":7.8,"headline":"Other in n/a","id":"CVE-2016-6167","kev_date_added":null,"published":"2017-01-30"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2021-33500","kev_date_added":null,"published":"2021-05-21"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2005-0467","kev_date_added":null,"published":"2005-02-21"},{"cvss_score":7.5,"headline":"Memory corruption in n/a","id":"CVE-2004-1440","kev_date_added":null,"published":"2005-02-13"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-26","vendors":["PuTTY"]},"summary":"An attacker can cause a denial of service in PuTTY via an assertion failure during ECDSA signature verification.","url":"https://insights.sbomify.com/CVE-2026-48852/"}