{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2016-6263 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2016-6263 is a high-severity vulnerability in n/a, published on 7 Sep 2016."},"fix_prompt":"Check this codebase for CVE-2016-6263 and fix it if it is affected.\n\nWhat it is: CVE-2016-6263 is a high-severity vulnerability in n/a, published on 7 Sep 2016. \nExploitation: There is no known exploitation of CVE-2016-6263 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2016-6263/ (Markdown: https://insights.sbomify.com/CVE-2016-6263/index.md)","id":"CVE-2016-6263","markdown":"https://insights.sbomify.com/CVE-2016-6263/index.md","name":"CVE-2016-6263","record":{"aliases":["ALPINE-CVE-2016-6263","DEBIAN-CVE-2016-6263","GHSA-4q6w-2734-9q8x","UBUNTU-CVE-2016-6263"],"analysis":null,"analysis_generated_by":null,"assigner":"mitre","cpe":[{"product":"libidn","vendor":"gnu"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.","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":"The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of serv","id":"CVE-2016-6263","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2016"},"n_packages":0,"n_references":12,"next":{"headline":"Integer overflow in n/a","id":"CVE-2016-6264"},"packages":[],"prev":{"headline":"Information disclosure in n/a","id":"CVE-2016-6262"},"products":["n/a"],"published":"2016-09-07","related":[{"cvss_score":4,"headline":"Information disclosure in libidn","id":"CVE-2026-57053","kev_date_added":null,"published":"2026-06-23"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-06","vendors":["n/a"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2016-6263/"}