{"answers":{"affected":"It affects 16 products.","exploited":"There is no known exploitation of CVE-2021-34778 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34778 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34778 is a medium-severity memory corruption vulnerability in Cisco Small Business 200 Series Smart Switches, published on 6 Oct 2021. 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-2021-34778 and fix it if it is affected.\n\nWhat it is: CVE-2021-34778 is a medium-severity memory corruption vulnerability in Cisco Small Business 200 Series Smart Switches, published on 6 Oct 2021. 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-2021-34778 in the wild and no public exploit code.\n\nAffected product: Cisco Small Business 200 Series Smart Switches. 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-2021-34778/ (Markdown: https://insights.sbomify.com/CVE-2021-34778/index.md)","id":"CVE-2021-34778","markdown":"https://insights.sbomify.com/CVE-2021-34778/index.md","name":"CVE-2021-34778","record":{"aliases":["GHSA-jr9h-58gc-725g"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Cisco Smart Switch","requires_auth":"none","summary":"An adjacent attacker can execute code or cause a reload on Cisco Small Business 220 Series Smart Switches via LLDP vulnerabilities.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"business_220-16p-2g_firmware","vendor":"cisco"},{"product":"business_220-16t-2g_firmware","vendor":"cisco"},{"product":"business_220-24fp-4g_firmware","vendor":"cisco"},{"product":"business_220-24fp-4x_firmware","vendor":"cisco"},{"product":"business_220-24p-4g_firmware","vendor":"cisco"},{"product":"business_220-24p-4x_firmware","vendor":"cisco"},{"product":"business_220-24t-4g_firmware","vendor":"cisco"},{"product":"business_220-24t-4x_firmware","vendor":"cisco"},{"product":"business_220-48fp-4x_firmware","vendor":"cisco"},{"product":"business_220-48p-4g_firmware","vendor":"cisco"},{"product":"business_220-48p-4x_firmware","vendor":"cisco"},{"product":"business_220-48t-4g_firmware","vendor":"cisco"},{"product":"business_220-48t-4x_firmware","vendor":"cisco"},{"product":"business_220-8fp-e-2g_firmware","vendor":"cisco"},{"product":"business_220-8p-e-2g_firmware","vendor":"cisco"},{"product":"business_220-8t-e-2g_firmware","vendor":"cisco"}],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker could perform the following: Execute code on the affected device or cause it to reload unexpectedly Cause LLDP database corruption on the affected device For more information about these vulnerabilities, see the Details section of this advisory. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). Cisco has released firmware updates that address these vulnerabilities.","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 Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities","id":"CVE-2021-34778","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities","id":"CVE-2021-34779"},"packages":[],"prev":{"headline":"Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities","id":"CVE-2021-34777"},"products":["Cisco Small Business 200 Series Smart Switches"],"published":"2021-10-06","related":[{"cvss_score":4.9,"headline":"Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities","id":"CVE-2021-34744","kev_date_added":null,"published":"2021-10-06"},{"cvss_score":4.9,"headline":"Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities","id":"CVE-2021-34757","kev_date_added":null,"published":"2021-10-06"},{"cvss_score":4.3,"headline":"Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities","id":"CVE-2021-34775","kev_date_added":null,"published":"2021-10-06"},{"cvss_score":4.3,"headline":"Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities","id":"CVE-2021-34776","kev_date_added":null,"published":"2021-10-06"},{"cvss_score":4.3,"headline":"Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities","id":"CVE-2021-34777","kev_date_added":null,"published":"2021-10-06"},{"cvss_score":4.3,"headline":"Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities","id":"CVE-2021-34779","kev_date_added":null,"published":"2021-10-06"}],"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":"partial"},"state":"PUBLISHED","updated":"2024-11-07","vendors":["Cisco"]},"summary":"An adjacent attacker can execute code or cause a reload on Cisco Small Business 220 Series Smart Switches via LLDP vulnerabilities.","url":"https://insights.sbomify.com/CVE-2021-34778/"}