{"id":"CVE-2026-20245","kind":"vulnerability","aliases":["CVE-2026-20245"],"related":[],"title":"A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN…","description":"A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user.\r\nTo exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of  or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices.\r\nCisco recommends that customers upgrade to the fixed software that is documented in the  that was published on May 14, 2026, and verify the configuration of the edge devices.","summary":"Cisco Catalyst SD-WAN Manager (formerly vManage) has an output encoding flaw that lets an authenticated local user run arbitrary commands as root by supplying a crafted file. CISA lists it as actively exploited in the wild.","severity":"high","cvss":7.8,"epss":null,"exploited":true,"exploited_at":"2026-06-09T00:00:00+00:00","products":[{"name":"cisco catalyst sd-wan manager","fixed":["20.9.9.1"],"affected":"< 20.9.9.1","ecosystem":"vendor"},{"name":"cisco catalyst sd-wan manager","fixed":["20.12.5.4"],"affected":">= 20.10, < 20.12.5.4","ecosystem":"vendor"},{"name":"cisco catalyst sd-wan manager","fixed":["20.12.6.2"],"affected":">= 20.12.6, < 20.12.6.2","ecosystem":"vendor"},{"name":"cisco catalyst sd-wan manager","fixed":["20.15.4.4"],"affected":">= 20.13, < 20.15.4.4","ecosystem":"vendor"},{"name":"cisco catalyst sd-wan manager","fixed":["20.15.5.2"],"affected":">= 20.15.5, < 20.15.5.2","ecosystem":"vendor"},{"name":"cisco catalyst sd-wan manager","fixed":["20.18.2.2"],"affected":">= 20.16, < 20.18.2.2","ecosystem":"vendor"},{"name":"cisco catalyst sd-wan manager","fixed":["26.1.1.1"],"affected":">= 26.1, < 26.1.1.1","ecosystem":"vendor"},{"name":"cisco catalyst sd-wan manager","fixed":[],"affected":"= 20.12.7","ecosystem":"vendor"},{"name":"cisco sd-wan vsmart controller","fixed":["20.9.9.1"],"affected":"< 20.9.9.1","ecosystem":"vendor"},{"name":"cisco sd-wan vsmart controller","fixed":["20.12.5.4"],"affected":">= 20.10, < 20.12.5.4","ecosystem":"vendor"},{"name":"cisco sd-wan vsmart controller","fixed":["20.12.6.2"],"affected":">= 20.12.6, < 20.12.6.2","ecosystem":"vendor"},{"name":"cisco sd-wan vsmart controller","fixed":["20.15.4.4"],"affected":">= 20.13, < 20.15.4.4","ecosystem":"vendor"},{"name":"cisco sd-wan vsmart controller","fixed":["20.15.5.2"],"affected":">= 20.15.5, < 20.15.5.2","ecosystem":"vendor"},{"name":"cisco sd-wan vsmart controller","fixed":["20.18.2.2"],"affected":">= 20.16, < 20.18.2.2","ecosystem":"vendor"},{"name":"cisco sd-wan vsmart controller","fixed":["26.1.1.1"],"affected":">= 26.1, < 26.1.1.1","ecosystem":"vendor"},{"name":"cisco sd-wan vsmart controller","fixed":[],"affected":"= 20.12.7","ecosystem":"vendor"},{"name":"Cisco Catalyst SD-WAN Manager","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["catalyst-sd-wan-manager","cisco","exploited","infrastructure","sd-wan","vmanage"],"not_affected_if":["no-catalyst-sd-wan-manager"],"how_to_check":null,"fix":"Apply the mitigations in Cisco's vendor advisory, or discontinue use of the product if mitigations are unavailable (per CISA KEV required action). Fixed version: unknown.","status":"open","published_at":"2026-06-04T23:17:31+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:33:56+00:00","updated_at":"2026-10-24T00:09:50+00:00","category":"infrastructure","confidence":0.8,"triage":{"at":"2026-10-23T20:33:56Z","model":"claude-haiku-5-5","output":{"fix":"Apply the mitigations in Cisco's vendor advisory, or discontinue use of the product if mitigations are unavailable (per CISA KEV required action). Fixed version: unknown.","summary":"Cisco Catalyst SD-WAN Manager (formerly vManage) has an output encoding flaw that lets an authenticated local user run arbitrary commands as root by supplying a crafted file. CISA lists it as actively exploited in the wild.","category":"infrastructure","who_cares":["cisco","sd-wan","catalyst-sd-wan-manager","vmanage"],"confidence":0.8,"analyst_note":"Find the Cisco advisory for CVE-2026-20245 to get affected and fixed versions, and a concrete check command or file path; sources here only give the KEV entry.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["no-catalyst-sd-wan-manager"],"severity_if_unknown":"high"},"cost_usd":0.000381,"input_tokens":2142,"output_tokens":334,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-20245':25A,28A '-2026':24A,27A '14':365C '2026':366C 'activ':176B 'affect':240C,267C,283C,305C 'allow':222C,273C 'arbitrari':163B,229C 'attack':226C,255C,275C,280C,298C 'authent':159B,224C 'awar':319C 'bug':336C 'case':330C 'catalyst':8A,19A,30A,36A,42A,48A,54A,60A,66A,72A,126A,132B,144B,188C,199C,211C 'catalyst-sd-wan-manag':131B 'chang':341C 'cisa':172B 'cisco':7A,18A,29A,35A,41A,47A,53A,59A,65A,71A,77A,83A,89A,95A,101A,107A,113A,119A,125A,136B,143B,187C,198C,210C,316C,326C,346C 'cli':5A,185C 'command':164B,230C,278C 'configur':340C,370C 'control':12A,192C 'controller':82A,88A,94A,100A,106A,112A,118A,124A 'could':221C,256C,272C 'craft':170B,236C,263C 'credenti':311C 'custom':349C 'cve':23A,26A 'devic':345C,374C 'document':357C 'due':245C 'edg':344C,373C 'elev':286C 'encod':154B 'execut':228C 'exploit':137B,177B,257C,271C,294C,313C,322C,333C 'file':171B,237C,264C 'fix':353C 'flaw':155B 'former':13A,149B,193C,204C,216C 'infrastructur':138B 'inject':279C 'input':253C 'insuffici':247C 'let':157B 'limit':329C 'list':173B 'local':160B,225C 'manag':135B,148B,203C 'manager':34A,40A,46A,52A,58A,64A,70A,76A,130A 'may':364C 'method':325C 'must':299C 'netadmin':301C 'observ':328C 'output':153B 'perform':277C 'privileg':288C,302C 'publish':362C 'push':342C 'recommend':347C 'requir':309C 'result':337C 'root':166B,232C,291C 'run':162B 'sd':10A,15A,21A,32A,38A,44A,50A,56A,62A,68A,74A,79A,85A,91A,97A,103A,109A,115A,121A,128A,133B,140B,146B,190C,195C,201C,206C,213C,218C 'sd-wan':9A,14A,20A,31A,37A,43A,49A,55A,61A,67A,73A,78A,84A,90A,96A,102A,108A,114A,120A,127A,139B,145B,189C,194C,200C,205C,212C,217C 'softwar':354C 'success':270C,321C 'suppli':168B,234C,252C 'system':241C,268C,284C,306C 'upgrad':350C 'upload':261C 'user':161B,251C,292C 'user-suppli':250C 'valid':215C,248C,310C 'vbond':220C 'verifi':368C 'vmanag':142B,150B,208C 'vsmart':17A,81A,87A,93A,99A,105A,111A,117A,123A,197C 'vulner':2A,182C,243C,259C,296C 'wan':11A,16A,22A,33A,39A,45A,51A,57A,63A,69A,75A,80A,86A,92A,98A,104A,110A,116A,122A,129A,134B,141B,147B,191C,196C,202C,207C,214C,219C 'wild':180B 'would':308C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2026-06-04T23:17:31+00:00","kev":{"dateAdded":"2026-06-09","dueDate":"2026-06-23","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"psirt@cisco.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2026-20245","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-20245","severity":null,"published_at":"2026-06-09T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T11:39:14+00:00","note":null},{"source":"nvd","external_id":"CVE-2026-20245","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20245","severity":null,"published_at":"2026-06-04T23:17:31+00:00","modified_at":"2026-07-23T07:10:00+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}