{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-71392 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-71392 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-71392 is a medium-severity vulnerability in GNU Emacs, published on 10 Aug 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-2026-71392 and fix it if it is affected.\n\nWhat it is: CVE-2026-71392 is a medium-severity vulnerability in GNU Emacs, published on 10 Aug 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: There is no known exploitation of CVE-2026-71392 in the wild and no public exploit code.\n\nAffected product: GNU Emacs. 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-2026-71392/ (Markdown: https://insights.sbomify.com/CVE-2026-71392/index.md)","id":"CVE-2026-71392","markdown":"https://insights.sbomify.com/CVE-2026-71392/index.md","name":"CVE-2026-71392","record":{"aliases":["GHSA-39p3-jw8m-jmr7","UBUNTU-CVE-2026-71392"],"analysis":{"component_type":"mobile_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"GNU Emacs Android","requires_auth":"none","summary":"An integer overflow in GNU Emacs for Android allows attackers to execute arbitrary code via a crafted TrueType font file.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERT-PL","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"GNU Emacs for Android is vulnerable to an integer overflow in the sfnt_read_cmap_format_12() function in src/sfnt.c. When processing a crafted TrueType font file, an unguarded addition in the xmalloc allocation call wraps around on 32-bit builds, causing a heap buffer overflow write. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This results in heap memory corruption that can lead to code execution.\n\nThis issue was fixed in commit c4e20777c26548722a37b03db93243e83a0d6188","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Integer Overflow in GNU Emacs for Android","id":"CVE-2026-71392","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Heap Buffer Overflow in GNU Emacs for Android","id":"CVE-2026-71393"},"packages":[],"prev":{"headline":"Off-by-One Error in GNU Emacs for Android","id":"CVE-2026-71391"},"products":["Emacs"],"published":"2026-08-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-08-10","vendors":["GNU"]},"summary":"An integer overflow in GNU Emacs for Android allows attackers to execute arbitrary code via a crafted TrueType font file.","url":"https://insights.sbomify.com/CVE-2026-71392/"}