{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-58317 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-58317 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-58317 is a medium-severity vulnerability in TeraTerm Project TTSSH2, published on 17 Jul 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-2026-58317 and fix it if it is affected.\n\nWhat it is: CVE-2026-58317 is a medium-severity vulnerability in TeraTerm Project TTSSH2, published on 17 Jul 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-2026-58317 in the wild and no public exploit code.\n\nAffected product: TeraTerm Project TTSSH2. 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-2026-58317/ (Markdown: https://insights.sbomify.com/CVE-2026-58317/index.md)","id":"CVE-2026-58317","markdown":"https://insights.sbomify.com/CVE-2026-58317/index.md","name":"CVE-2026-58317","record":{"aliases":["GHSA-mmcg-pw3p-cwjh"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["data_read","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"SSH client plugin","requires_auth":"none","summary":"An attacker can trigger an integer conversion error in TTSSH2 to read adjacent memory or crash the Tera Term SSH client.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-196","name":"Unsigned to Signed Conversion Error"}],"description":"Unsigned to Signed Conversion Error (CWE-196) vulnerability exists in TTSSH2 plugin of Tera Term provided by TeraTerm Project. When Tera Term attempts to establish an SSH connection to a server set up by an attacker, out-of-bounds read/write may occur. As a result, the contents of adjacent memory regions may be transmitted to the server, and Tera Term may behave unexpected or terminate abnormally.","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":"Integer overflow in TTSSH2","id":"CVE-2026-58317","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":"Apache Doris: Improper Authentication in Frontend HTTP API","id":"CVE-2026-58319"},"packages":[],"prev":{"headline":"Cross-site request forgery in Web Config","id":"CVE-2026-58315"},"products":["TTSSH2"],"published":"2026-07-17","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":"2026-07-17","vendors":["TeraTerm Project"]},"summary":"An attacker can trigger an integer conversion error in TTSSH2 to read adjacent memory or crash the Tera Term SSH client.","url":"https://insights.sbomify.com/CVE-2026-58317/"}