{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-103010 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-103010 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-103010 is a high-severity memory corruption vulnerability in Progressive Robot Ltd hMailServer, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-103010 and fix it if it is affected.\n\nWhat it is: CVE-2026-103010 is a high-severity memory corruption vulnerability in Progressive Robot Ltd hMailServer, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-103010 in the wild and no public exploit code.\n\nAffected product: Progressive Robot Ltd hMailServer. 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-2026-103010/ (Markdown: https://insights.sbomify.com/CVE-2026-103010/index.md)","id":"CVE-2026-103010","markdown":"https://insights.sbomify.com/CVE-2026-103010/index.md","name":"CVE-2026-103010","record":{"aliases":["GHSA-mgwr-8mph-vj23"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Mail server software","requires_auth":"low_privilege","summary":"A local attacker can trigger a heap buffer overflow in hMailServer via an unauthenticated COM method, potentially achieving code execution as LocalSystem.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitLab","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Heap-based buffer overflow in the legacy Blowfish decryption routine (BlowFishEncryptor::DecryptFromString) in Progressive Robot hMailServer 6.0.0 through 6.3.3 on Windows allows a local interactive user with no hMailServer credentials to write bytes of their choosing past the end of a 255-byte heap buffer in the hMailServer service process, which runs as LocalSystem by default. The user does this by passing a long hexadecimal string to the COM method Utilities.BlowfishDecrypt, which checked no authentication. The routine converted hexadecimal input of any length into a fixed 255-byte buffer before decrypting it in place. The result is a denial of service (service crash), and possibly code execution with the privileges of the service account.","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":"Heap-based Buffer Overflow in hMailServer","id":"CVE-2026-103010","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Heap-based Buffer Overflow in hMailServer","id":"CVE-2026-103011"},"packages":[],"prev":{"headline":"Authorization Bypass Through User-Controlled Key in Elasticsearch Leading to Information Disclosure","id":"CVE-2026-103009"},"products":["hMailServer"],"published":"2026-10-08","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":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["Progressive Robot Ltd"]},"summary":"A local attacker can trigger a heap buffer overflow in hMailServer via an unauthenticated COM method, potentially achieving code execution as LocalSystem.","url":"https://insights.sbomify.com/CVE-2026-103010/"}