{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-0233 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-0233 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-0233 is a high-severity denial of service vulnerability in Cisco Secure Firewall Management Center, published on 19 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-0233 and fix it if it is affected.\n\nWhat it is: CVE-2018-0233 is a high-severity denial of service vulnerability in Cisco Secure Firewall Management Center, published on 19 Apr 2018. 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-2018-0233 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-2018-0233/ (Markdown: https://insights.sbomify.com/CVE-2018-0233/index.md)","id":"CVE-2018-0233","markdown":"https://insights.sbomify.com/CVE-2018-0233/index.md","name":"CVE-2018-0233","record":{"aliases":["GHSA-wchf-39q2-hfmr"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Firepower System","requires_auth":"none","summary":"Remote attackers can cause memory exhaustion and denial of service in Cisco Firepower detection engines by sending crafted SSL connections.","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"}],"cvss":{"score":8.6,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A vulnerability in the Secure Sockets Layer (SSL) packet reassembly functionality of the detection engine in Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause the detection engine to consume excessive system memory on an affected device, which could cause a denial of service (DoS) condition. The vulnerability is due to the affected software improperly handling changes to SSL connection states. An attacker could exploit this vulnerability by sending crafted SSL connections through an affected device. A successful exploit could allow the attacker to cause the detection engine to consume excessive system memory on the affected device, which could cause a DoS condition. The device may need to be reloaded manually to recover from this condition. This vulnerability affects Cisco Firepower System Software Releases 6.0.0 and later, running on any of the following Cisco products: Adaptive Security Appliance (ASA) 5500-X Series Firewalls with FirePOWER Services, Adaptive Security Appliance (ASA) 5500-X Series Next-Generation Firewalls, Advanced Malware Protection (AMP) for Networks, 7000 Series Appliances, Advanced Malware Protection (AMP) for Networks, 8000 Series Appliances, Firepower 4100 Series Appliances, FirePOWER 7000 Series Appliances, FirePOWER 8000 Series Appliances, Firepower 9300 Series Security Appliances, Firepower Threat Defense for Integrated Services Routers (ISRs), Firepower Threat Defense Virtual for VMware, Industrial Security Appliance 3000, Sourcefire 3D System Appliances. Cisco Bug IDs: CSCve23031.","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 Cisco Firepower Detection Engine","id":"CVE-2018-0233","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:secure_firewall_management_center","products":["cisco:secure_firewall_management_center"],"type":"denial_of_service","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in Cisco Aironet 1810, 1830, and 1850 Series Access Points","id":"CVE-2018-0234"},"packages":[],"prev":{"headline":"Denial of service in Cisco Adaptive Security Appliance","id":"CVE-2018-0231"},"products":["Cisco Firepower Detection Engine"],"published":"2018-04-19","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-29","vendors":["n/a"]},"summary":"Remote attackers can cause memory exhaustion and denial of service in Cisco Firepower detection engines by sending crafted SSL connections.","url":"https://insights.sbomify.com/CVE-2018-0233/"}