{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25551 exists.","fix":"No fix has been published for CVE-2026-25551 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-25551 is a high-severity unsafe deserialization vulnerability in Seagull Software, LLC. BarTender 2021, published on 4 Jun 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-2026-25551 and fix it if it is affected.\n\nWhat it is: CVE-2026-25551 is a high-severity unsafe deserialization vulnerability in Seagull Software, LLC. BarTender 2021, published on 4 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25551 exists.\n\nAffected product: Seagull Software, LLC. BarTender 2021. 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-2026-25551/ (Markdown: https://insights.sbomify.com/CVE-2026-25551/index.md)","id":"CVE-2026-25551","markdown":"https://insights.sbomify.com/CVE-2026-25551/index.md","name":"CVE-2026-25551","record":{"aliases":["GHSA-g42f-xxvf-qj27"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"BarTender label software","requires_auth":"low_privilege","summary":"Local attackers can exploit insecure .NET Remoting deserialization in BarTender to execute arbitrary code with SYSTEM privileges.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/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":"Seagull Software BarTender 2021 R1 through 12.0.1 contains an insecure deserialization vulnerability that allows low-privileged local users to escalate privileges. The DataServiceSingleton .NET Remoting endpoint is bound to localhost on TCP port 7375 via BtSystem.Service.exe, limiting the attack surface to local access only. The endpoint is configured with BinaryServerFormatterSinkProvider and TypeFilterLevel set to Full. A low-privileged local attacker can send YSoSerial.NET-generated BinaryFormatter payloads to the localhost-bound endpoint to achieve code execution as NT AUTHORITY\\\\\\\\SYSTEM. The vulnerability was corrected in BarTender 12.1, released on August 14, 2026. Users should upgrade to BarTender 12.1 or later.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Seagull Software BarTender Deserialization Privilege Escalation via .NET Remoting Service","id":"CVE-2026-25551","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Ghost CLI \u003c 1.30.1 IP Spoofing via X-Forwarded-For Header","id":"CVE-2026-25552"},"packages":[],"prev":{"headline":"Seagull Software BarTender Unauthenticated RCE via .NET Remoting Service","id":"CVE-2026-25550"},"products":["BarTender 2021"],"published":"2026-06-04","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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-02","vendors":["Seagull Software, LLC."]},"summary":"Local attackers can exploit insecure .NET Remoting deserialization in BarTender to execute arbitrary code with SYSTEM privileges.","url":"https://insights.sbomify.com/CVE-2026-25551/"}