{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-20156 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20156 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20156 is a high-severity memory corruption vulnerability in Cisco RoomOS Software, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-20156 and fix it if it is affected.\n\nWhat it is: CVE-2026-20156 is a high-severity memory corruption vulnerability in Cisco RoomOS Software, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-20156 in the wild and no public exploit code.\n\nAffected product: Cisco RoomOS Software. 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-2026-20156/ (Markdown: https://insights.sbomify.com/CVE-2026-20156/index.md)","id":"CVE-2026-20156","markdown":"https://insights.sbomify.com/CVE-2026-20156/index.md","name":"CVE-2026-20156","record":{"aliases":["GHSA-gxwc-c8rv-5m26"],"analysis":{"component_type":"iot_embedded","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco RoomOS","requires_auth":"none","summary":"Cisco RoomOS contains buffer management vulnerabilities allowing potential code execution or denial of service, requiring a security hardening update.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"roomos","vendor":"cisco"},{"product":"roomos_cloud","vendor":"cisco"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco RoomOS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-20156 are related to improper restriction of operations within the bounds of a memory buffer that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-119.","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":"Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities","id":"CVE-2026-20156","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities","id":"CVE-2026-20157"},"packages":[],"prev":{"headline":"Cisco Evolved Programmable Network Manager Improper Authorization Vulnerability","id":"CVE-2026-20155"},"products":["Cisco RoomOS Software"],"published":"2026-07-15","related":[{"cvss_score":8.8,"headline":"Cisco RoomOS Security Hardening Release - Access Control Vulnerabilities","id":"CVE-2026-20150","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":8.8,"headline":"Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Privilege Escalation Vulnerability","id":"CVE-2019-15288","kev_date_added":null,"published":"2019-11-26"},{"cvss_score":7.5,"headline":"Cisco RoomOS Security Hardening Release - Input Validation Vulnerabilities","id":"CVE-2026-20153","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":7.5,"headline":"Cisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities","id":"CVE-2026-20157","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":7.5,"headline":"Cisco RoomOS Security Hardening Release - Resource Lifetime Management Vulnerabilities","id":"CVE-2026-20158","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":7.5,"headline":"Cisco RoomOS Security Hardening Release - Exceptional Conditions Handling Vulnerabilities","id":"CVE-2026-20187","kev_date_added":null,"published":"2026-07-15"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-08-14","vendors":["Cisco"]},"summary":"Cisco RoomOS contains buffer management vulnerabilities allowing potential code execution or denial of service, requiring a security hardening update.","url":"https://insights.sbomify.com/CVE-2026-20156/"}