{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/ssm-on-prem/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":9.8,"id":"CVE-2026-20160"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["critical"],"_cs_tags":["cve-2026-20160","cisco","ssm-on-prem","rce","webserver"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCVE-2026-20160 affects Cisco Smart Software Manager On-Prem (SSM On-Prem). The vulnerability allows an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected SSM On-Prem host. This is due to the unintentional exposure of an internal service. The vulnerability was reported in April 2026. Successful exploitation allows for command execution with root-level privileges, making it a critical risk for organizations using the affected Cisco SSM On-Prem software. Defenders should apply available patches or mitigations immediately.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies an internet-facing Cisco Smart Software Manager On-Prem (SSM On-Prem) instance.\u003c/li\u003e\n\u003cli\u003eThe attacker discovers the unintentionally exposed internal service through reconnaissance techniques such as port scanning and service enumeration.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious request specifically designed to exploit the exposed API endpoint of the internal service.\u003c/li\u003e\n\u003cli\u003eThe attacker sends the crafted request to the vulnerable API endpoint of the exposed service.\u003c/li\u003e\n\u003cli\u003eThe vulnerable SSM On-Prem software processes the malicious request without proper authentication or authorization checks.\u003c/li\u003e\n\u003cli\u003eThe software executes arbitrary commands on the underlying operating system due to the exposed API.\u003c/li\u003e\n\u003cli\u003eThe attacker gains root-level privileges on the SSM On-Prem host, allowing for full control of the system.\u003c/li\u003e\n\u003cli\u003eThe attacker can then perform further malicious activities, such as data exfiltration, lateral movement, or installation of persistent backdoors.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-20160 allows an attacker to execute arbitrary commands on the underlying operating system with root-level privileges. This could lead to complete compromise of the affected SSM On-Prem host. The attacker could exfiltrate sensitive data, disrupt services, or use the compromised system as a launchpad for further attacks within the network. Given the critical nature of software license management performed by SSM On-Prem, a successful attack could have significant operational and financial consequences.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the security patch released by Cisco to address CVE-2026-20160 on all affected Cisco Smart Software Manager On-Prem (SSM On-Prem) instances.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for unusual API requests targeting Cisco Smart Software Manager On-Prem instances to detect potential exploitation attempts, using the \u0026ldquo;Detect Cisco SSM On-Prem API Exploitation Attempt\u0026rdquo; Sigma rule.\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the exposure of internal services and prevent unauthorized access from external networks.\u003c/li\u003e\n\u003cli\u003eReview access controls and authentication mechanisms for all internal services to ensure proper security configurations and prevent unintentional exposure.\u003c/li\u003e\n\u003cli\u003eDeploy the \u0026ldquo;Detect Cisco SSM On-Prem Root Command Execution\u0026rdquo; Sigma rule to detect suspicious process execution originating from the SSM On-Prem server.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-01T17:28:31Z","date_published":"2026-04-01T17:28:31Z","id":"/briefs/2024-02-cisco-ssm-rce/","summary":"CVE-2026-20160 is a critical vulnerability in Cisco Smart Software Manager On-Prem (SSM On-Prem) that allows an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system with root privileges by sending a crafted request to an exposed API.","title":"Cisco Smart Software Manager On-Prem RCE via Exposed API (CVE-2026-20160)","url":"https://feed.craftedsignal.io/briefs/2024-02-cisco-ssm-rce/"}],"language":"en","title":"CraftedSignal Threat Feed — Ssm-on-Prem","version":"https://jsonfeed.org/version/1.1"}