{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-40114 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-40114 is a medium-severity denial of service vulnerability in Cisco Secure Firewall Management Center, published on 27 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-40114 and fix it if it is affected.\n\nWhat it is: CVE-2021-40114 is a medium-severity denial of service vulnerability in Cisco Secure Firewall Management Center, published on 27 Oct 2021. 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-2021-40114 in the wild and no public exploit code.\n\nAffected product: Cisco Secure Firewall Management Center. 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-2021-40114/ (Markdown: https://insights.sbomify.com/CVE-2021-40114/index.md)","id":"CVE-2021-40114","markdown":"https://insights.sbomify.com/CVE-2021-40114/index.md","name":"CVE-2021-40114","record":{"aliases":["ALPINE-CVE-2021-40114","GHSA-5v43-2p8q-45m6","UBUNTU-CVE-2021-40114"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Firepower Threat Defense","requires_auth":"none","summary":"Unauthenticated remote attackers can cause a denial of service by sending crafted ICMP packets to Cisco Firepower devices, exhausting memory resources.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"secure_firewall_management_center","vendor":"cisco"},{"product":"secure_firewall_threat_defense","vendor":"cisco"},{"product":"unified_threat_defense","vendor":"cisco"},{"product":"snort","vendor":"snort"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"},{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Multiple Cisco Products Snort Memory Leak Denial of Service Vulnerability","id":"CVE-2021-40114","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:secure_firewall_management_center","products":["cisco:secure_firewall_management_center","cisco:secure_firewall_threat_defense"],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Cisco Webex Video Mesh Cross-Site Scripting Vulnerability","id":"CVE-2021-40115"},"packages":[],"prev":{"headline":"Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities","id":"CVE-2021-40113"},"products":["Cisco Firepower Threat Defense Software"],"published":"2021-10-27","related":[{"cvss_score":10,"headline":"Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2026-20079","kev_date_added":"2026-09-09","published":"2026-03-04"},{"cvss_score":10,"headline":"Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data","id":"CVE-2026-20131","kev_date_added":"2026-03-19","published":"2026-03-04"},{"cvss_score":5.3,"headline":"Cisco Secure Firewall Management Center Use of Hard-coded Password","id":"CVE-2026-20316","kev_date_added":"2026-07-29","published":"2026-07-29"},{"cvss_score":10,"headline":"Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability","id":"CVE-2025-20265","kev_date_added":null,"published":"2025-08-14"},{"cvss_score":9.9,"headline":"Command injection in Cisco Firepower Management Center","id":"CVE-2024-20424","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":9.9,"headline":"Missing authorization in Cisco Firepower Management Center","id":"CVE-2023-20048","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":9.8,"headline":"Cisco Firepower Management Center Lightweight Directory Access Protocol Authentication Bypass Vulnerability","id":"CVE-2019-16028","kev_date_added":null,"published":"2020-09-23"}],"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":"Unauthenticated remote attackers can cause a denial of service by sending crafted ICMP packets to Cisco Firepower devices, exhausting memory resources.","url":"https://insights.sbomify.com/CVE-2021-40114/"}