{"id":"CVE-2026-83549","kind":"vulnerability","aliases":["CVE-2026-83549"],"related":[],"title":"Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')…","description":"SonicWall SMA1000 Appliances contains an OS command injection vulnerability that could enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.\n\nCISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","summary":"SonicWall SMA1000 appliances contain an OS command injection flaw that lets a remote attacker who is already logged in as administrator run arbitrary operating system commands, which means remote code execution on the appliance. CISA lists it as actively exploited in the wild.","severity":"high","cvss":7.8,"epss":null,"exploited":true,"exploited_at":"2026-09-02T00:00:00+00:00","products":[{"name":"SonicWall SMA1000 Appliances","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"sonicwall sma8200v","fixed":["12.4.3-03526"],"affected":"< 12.4.3-03526","ecosystem":"vendor"},{"name":"sonicwall sma8200v","fixed":["12.5.0-02952"],"affected":">= 12.5.0, < 12.5.0-02952","ecosystem":"vendor"},{"name":"sonicwall sma6210 firmware","fixed":["12.4.3-03526"],"affected":"< 12.4.3-03526","ecosystem":"vendor"},{"name":"sonicwall sma6210 firmware","fixed":["12.5.0-02952"],"affected":">= 12.5.0, < 12.5.0-02952","ecosystem":"vendor"},{"name":"sonicwall sma7210 firmware","fixed":["12.4.3-03526"],"affected":"< 12.4.3-03526","ecosystem":"vendor"},{"name":"sonicwall sma7210 firmware","fixed":["12.5.0-02952"],"affected":">= 12.5.0, < 12.5.0-02952","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","self-hosted","sma1000","sonicwall"],"not_affected_if":["no-sma1000-deployed","patched-firmware"],"how_to_check":"Check the SMA1000 firmware version in the appliance management console against the fixed version in the SonicWall advisory (not stated in the sources).\nReview admin login and audit logs for unexpected administrator sessions or commands.","fix":"Apply the vendor patch or mitigation from SonicWall, as CISA's required action directs; the specific fixed version is not stated in the sources.\nIf no mitigation is available, discontinue use of the product per CISA guidance.","status":"open","published_at":"2026-09-01T22:17:13+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:31:44+00:00","updated_at":"2026-10-23T23:44:52+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-23T20:31:44Z","model":"claude-haiku-5-5","output":{"fix":"Apply the vendor patch or mitigation from SonicWall, as CISA's required action directs; the specific fixed version is not stated in the sources.\nIf no mitigation is available, discontinue use of the product per CISA guidance.","summary":"SonicWall SMA1000 appliances contain an OS command injection flaw that lets a remote attacker who is already logged in as administrator run arbitrary operating system commands, which means remote code execution on the appliance. CISA lists it as actively exploited in the wild.","category":"infrastructure","who_cares":["sonicwall","sma1000","self-hosted"],"confidence":0.7,"analyst_note":"Find the SonicWall advisory for CVE-2026-83549 to get affected and fixed firmware versions, IOCs, and the forensic triage steps CISA references.","how_to_check":"Check the SMA1000 firmware version in the appliance management console against the fixed version in the SonicWall advisory (not stated in the sources).\nReview admin login and audit logs for unexpected administrator sessions or commands.\nunknown","needs_analyst":true,"not_affected_if":["no-sma1000-deployed","patched-firmware"],"severity_if_unknown":"high"},"cost_usd":0.000431,"input_tokens":2228,"output_tokens":416,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-04':137C,163C,194C '-2026':18A,21A '-83549':19A,22A '26':136C,162C,193C 'accord':126C 'action':122C 'activ':87B 'adher':190C 'administr':69B,109C 'alreadi':65B 'appli':123C 'applianc':51B,82B,94C 'appliances':25A 'applic':160C 'arbitrari':71B,112C 'asset':184C 'attack':62B,107C 'authent':3A,106C 'base':141C 'bod':135C,161C,192C 'cisa':83B,120C,133C,150C 'cloud':166C 'code':78B,118C 'command':13A,15A,55B,74B,98C,114C 'complianc':131C 'contain':52B,95C 'could':102C 'cve':17A,20A 'discontinu':169C 'element':8A 'enabl':103C 'ensur':130C,189C 'evalu':182C 'execut':79B,111C,119C 'exploit':42B,88B 'exposur':187C 'firmware':32A,35A,38A,41A 'flaw':57B 'follow':159C 'forens':152C 'guidanc':148C,164C 'guidelin':196C 'host':46B 'improp':4A 'infrastructur':43B 'inject':16A,56B,99C 'instruct':129C 'internet':186C 'let':59B 'list':84B 'log':66B 'mean':76B 'mitig':124C,175C 'neutral':5A 'note':147C,158C 'oper':72B 'os':12A,14A,54B,97C,113C 'patch':195C 'post':2A 'post-authent':1A 'priorit':138C 'product':173C 'remot':61B,77B,105C,117C 'requir':121C,154C 'respons':180C 'result':115C 'risk':143C 'run':70B 'secur':139C 'see':144C,155C 'self':45B 'self-host':44B 'servic':167C 'sma1000':24A,47B,50B,93C 'sma6210':31A,34A 'sma7210':37A,40A 'sma8200v':27A,29A 'sonicwal':48B,49B,92C 'sonicwall':23A,26A,28A,30A,33A,36A,39A 'special':7A 'stakehold':178C 'system':73B 'triag':153C 'unavail':177C 'updat':140C 'url':145C,156C 'use':9A,170C 'vendor':128C 'vulner':100C 'wild':91B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2026-09-01T22:17:13+00:00","kev":{"dateAdded":"2026-09-02","dueDate":"2026-09-05","requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","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":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2026-83549","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-83549","severity":null,"published_at":"2026-09-02T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T10:39:04+00:00","note":null},{"source":"nvd","external_id":"CVE-2026-83549","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83549","severity":null,"published_at":"2026-09-01T22:17:13+00:00","modified_at":"2026-09-21T14:17:21+00:00","first_seen_at":"2026-10-23T23:44:52+00:00","fetched_at":"2026-10-23T23:44:52+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"}