{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-77556 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-77556 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-77556 is a high-severity denial of service vulnerability in Ubiquiti Inc Cloud Gateways, published on 22 Sep 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-2026-77556 and fix it if it is affected.\n\nWhat it is: CVE-2026-77556 is a high-severity denial of service vulnerability in Ubiquiti Inc Cloud Gateways, published on 22 Sep 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-2026-77556 in the wild and no public exploit code.\n\nAffected product: Ubiquiti Inc Cloud Gateways. 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-2026-77556/ (Markdown: https://insights.sbomify.com/CVE-2026-77556/index.md)","id":"CVE-2026-77556","markdown":"https://insights.sbomify.com/CVE-2026-77556/index.md","name":"CVE-2026-77556","record":{"aliases":["GHSA-rf8m-f7x4-4m54"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"UniFi network gateway","requires_auth":"none","summary":"A remote attacker can cause a denial of service on UniFi network devices via an out-of-bounds read vulnerability.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Ubiquiti","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"A malicious actor with access to the network could exploit an Out-of-bounds Read vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.","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":"Denial of service in Cloud Gateways","id":"CVE-2026-77556","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Privilege escalation in UniFi Protect AI Key","id":"CVE-2026-77557"},"packages":[],"prev":{"headline":"Memory corruption in Cloud Gateways","id":"CVE-2026-77555"},"products":["Cloud Gateways","Dream Machines","Dream Routers","Dream Wall","Enterprise Firewalls","Express","Express 7","UniFi Gateways"],"published":"2026-09-22","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":"partial"},"state":"PUBLISHED","updated":"2026-09-22","vendors":["Ubiquiti Inc"]},"summary":"A remote attacker can cause a denial of service on UniFi network devices via an out-of-bounds read vulnerability.","url":"https://insights.sbomify.com/CVE-2026-77556/"}