{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-21665 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-21665 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-21665 is a high-severity unsafe deserialization vulnerability in Fiserv Originate Loans Peripherals (formerly Velocity Services) -- Print Service component, published on 23 Feb 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-2026-21665 and fix it if it is affected.\n\nWhat it is: CVE-2026-21665 is a high-severity unsafe deserialization vulnerability in Fiserv Originate Loans Peripherals (formerly Velocity Services) -- Print Service component, published on 23 Feb 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-2026-21665 in the wild and no public exploit code.\n\nAffected product: Fiserv Originate Loans Peripherals (formerly Velocity Services) -- Print Service component. 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-2026-21665/ (Markdown: https://insights.sbomify.com/CVE-2026-21665/index.md)","id":"CVE-2026-21665","markdown":"https://insights.sbomify.com/CVE-2026-21665/index.md","name":"CVE-2026-21665","record":{"aliases":["GHSA-h68v-wm52-cjcj"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Loan peripherals service","requires_auth":"none","summary":"Unauthenticated attackers can achieve remote code execution via unsafe deserialization in legacy Print Service components exposed to untrusted networks.","user_interaction":"required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"The Print Service component of Fiserv Originate Loans Peripherals (formerly Velocity Services) in unsupported version 2021.2.4 (build 4.7.3155.0011) uses deprecated .NET Remoting TCP channels that allow unsafe deserialization of untrusted data. When these services are exposed to an untrusted network in a client-managed deployment, an unauthenticated attacker can achieve remote code execution. Version 2021.2.4 is no longer supported by Fiserv. Customers should upgrade to a currently supported release (2025.1 or later) and ensure that .NET Remoting service ports are not exposed beyond trusted network boundaries.\r\n\r\nThis CVE documents behavior observed in a client-hosted deployment running an unsupported legacy version of Originate Loans Peripherals with .NET Remoting ports exposed to an untrusted network. This is not a default or supported configuration. Customers running legacy versions should upgrade to a currently supported release and ensure .NET Remoting ports are restricted to trusted network segments. The finding does not apply to Fiserv-hosted environments.","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":"Deserialization in Originate Loans Peripherals (formerly Velocity Services) -- Print Service component","id":"CVE-2026-21665","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Missing authorization in Backup and Replication","id":"CVE-2026-21666"},"packages":[],"prev":{"headline":"Cross-site scripting in Revive Adserver","id":"CVE-2026-21664"},"products":["Originate Loans Peripherals (formerly Velocity Services) -- Print Service component"],"published":"2026-02-23","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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-25","vendors":["Fiserv"]},"summary":"Unauthenticated attackers can achieve remote code execution via unsafe deserialization in legacy Print Service components exposed to untrusted networks.","url":"https://insights.sbomify.com/CVE-2026-21665/"}