{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-1718 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-1718 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-1718 is a medium-severity denial of service vulnerability in Cisco Identity Services Engine, published on 17 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-1718 and fix it if it is affected.\n\nWhat it is: CVE-2019-1718 is a medium-severity denial of service vulnerability in Cisco Identity Services Engine, published on 17 Apr 2019. 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-2019-1718 in the wild and no public exploit code.\n\nAffected product: Cisco Identity Services Engine. 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-2019-1718/ (Markdown: https://insights.sbomify.com/CVE-2019-1718/index.md)","id":"CVE-2019-1718","markdown":"https://insights.sbomify.com/CVE-2019-1718/index.md","name":"CVE-2019-1718","record":{"aliases":["GHSA-x3m5-7cfg-xfpq"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Identity Services Engine","requires_auth":"none","summary":"Unauthenticated remote attackers can cause denial of service in Cisco ISE by flooding SSL renegotiation requests, leading to high CPU usage.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"identity_services_engine","vendor":"cisco"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.0"},"cwes":[{"id":"CWE-399","name":null}],"description":"A vulnerability in the web interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to trigger high CPU usage, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of Secure Sockets Layer (SSL) renegotiation requests. An attacker could exploit this vulnerability by sending renegotiation requests at a high rate. An successful exploit could increase the resource usage on the system, eventually leading to a DoS condition. This vulnerability affects version 2.1.","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 Identity Services Engine SSL Renegotiation Denial of Service Vulnerability","id":"CVE-2019-1718","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:identity_services_engine","products":["cisco:identity_services_engine"],"type":"denial_of_service","year":"2019"},"n_packages":0,"n_references":2,"next":{"headline":"Cisco Identity Services Engine Cross-Site Scripting Vulnerability","id":"CVE-2019-1719"},"packages":[],"prev":{"headline":"Cisco Video Surveillance Manager Web-Based Management Interface Information Disclosure Vulnerability","id":"CVE-2019-1717"},"products":["Cisco Identity Services Engine Software"],"published":"2019-04-17","related":[{"cvss_score":10,"headline":"Cisco Identity Services Engine Incorrect Use of Privileged APIs","id":"CVE-2026-76460","kev_date_added":"2026-09-16","published":"2026-09-16"},{"cvss_score":10,"headline":"Cisco Identity Services Engine Injection","id":"CVE-2025-20337","kev_date_added":"2025-07-28","published":"2025-07-16"},{"cvss_score":10,"headline":"Cisco Identity Services Engine Injection","id":"CVE-2025-20281","kev_date_added":"2025-07-28","published":"2025-06-25"},{"cvss_score":10,"headline":"Cisco Identity Services Engine Hardening Release - Improper Neutralization Vulnerabilities","id":"CVE-2026-20130","kev_date_added":null,"published":"2026-09-16"},{"cvss_score":10,"headline":"Cisco Identity Services Engine Hardening Release - Access Control Vulnerabilities","id":"CVE-2026-20192","kev_date_added":null,"published":"2026-09-16"},{"cvss_score":10,"headline":"Cisco ISE API Unauthenticated Remote Code Execution Vulnerability","id":"CVE-2025-20282","kev_date_added":null,"published":"2025-06-25"},{"cvss_score":10,"headline":"Hardcoded credentials in n/a","id":"CVE-2011-3290","kev_date_added":null,"published":"2011-09-21"}],"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":"2024-11-19","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can cause denial of service in Cisco ISE by flooding SSL renegotiation requests, leading to high CPU usage.","url":"https://insights.sbomify.com/CVE-2019-1718/"}