{"id":"CVE-2022-26318","published":"2022-03-04T18:15:08Z","modified":"2026-06-17T04:34:58Z","title":"WatchGuard Firebox and XTM Appliances Arbitrary Code Execution","vendor":"WatchGuard","product":"Firebox and XTM Appliances","tier":"core","eol":null,"description":{"text":"On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.","provenance":"source","from":"NVD"},"summary":{"text":"WatchGuard Firebox and XTM appliances contain a heap-based buffer overflow flaw in the appliance's Fireware OS (tracked as FBX-22786) that allows arbitrary code execution. An unauthenticated attacker over the network can exploit it with no authentication, no user interaction, and no special configuration required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:56Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.78157,"percentile":0.99576,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2022-03-25","dueDate":"2022-04-15","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2022-26318","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-03-17","exploitedFirstSeen":"2022-03-17","ransomware":false,"evidence":[{"url":"https://www.greynoise.io/blog/watchguard-cve-2022-26318-rce-detection-iocs-and-prevention-for-defenders","date":"2022-03-17"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-03-25"},{"url":"https://aws.amazon.com/blogs/security/amazon-threat-intelligence-identifies-russian-cyber-threat-group-targeting-western-critical-infrastructure/","date":"2025-12-15"},{"url":"https://ics-cert.kaspersky.com/publications/reports/2026/03/06/apt-and-financial-attacks-on-industrial-organizations-in-q4-2025/","date":"2026-03-06"}],"evidenceTotal":4,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"references":[{"url":"https://www.watchguard.com/support/release-notes/fireware/12/en-US/EN_ReleaseNotes_Fireware_12_7_2/index.html#Fireware/en-US/resolved_issues.html","tags":["Release Notes","Vendor Advisory"]},{"url":"https://www.watchguard.com/support/release-notes/fireware/12/en-US/EN_ReleaseNotes_Fireware_12_7_2/index.html#Fireware/en-US/resolved_issues.html","tags":["Release Notes","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26318","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Network-reachable unauthenticated appliance exploitation via public-facing service","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"an unauthenticated user can execute arbitrary code","start":42,"end":92}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Arbitrary code execution on the appliance","mappingType":"primary_impact","evidence":[{"from":"description","quote":"an unauthenticated user can execute arbitrary code","start":42,"end":92}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2022-30879","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-30879","exploited":true,"exploitedSince":"2022-03-25","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":4,"skipped":0,"earliest":"2022-03-28","earliestUrl":"https://github.com/misterxid/watchguard_cve-2022-26318","repos":[{"name":"misterxid/watchguard_cve-2022-26318","url":"https://github.com/misterxid/watchguard_cve-2022-26318","stars":11,"created":"2022-03-28"},{"name":"h3llk4t3/Watchguard-RCE-POC-CVE-2022-26318","url":"https://github.com/h3llk4t3/Watchguard-RCE-POC-CVE-2022-26318","stars":2,"created":"2022-04-18"},{"name":"BabyTeam1024/CVE-2022-26318","url":"https://github.com/BabyTeam1024/CVE-2022-26318","stars":2,"created":"2022-05-21"},{"name":"egilas/Watchguard-RCE-POC-CVE-2022-26318","url":"https://github.com/egilas/Watchguard-RCE-POC-CVE-2022-26318","stars":0,"created":"2024-12-05"}]},"metasploit":[{"name":"WatchGuard XTM Firebox Unauthenticated Remote Command Execution","module":"exploit/linux/http/watchguard_firebox_unauth_rce_cve_2022_26318","type":"exploit","disclosureDate":"2022-08-29","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/watchguard_firebox_unauth_rce_cve_2022_26318.rb"}],"first":{"date":"2022-03-28","source":"PoC-in-GitHub","url":"https://github.com/misterxid/watchguard_cve-2022-26318"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2022-03-04","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-26318","provenance":"source"},{"date":"2022-03-17","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.greynoise.io/blog/watchguard-cve-2022-26318-rce-detection-iocs-and-prevention-for-defenders","provenance":"source"},{"date":"2022-03-25","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-03-25","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-30879","provenance":"source"},{"date":"2022-03-28","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub; later: Metasploit 2022-08-29","url":"https://github.com/misterxid/watchguard_cve-2022-26318","provenance":"source"}],"speed":{"daysToPublicExploit":24,"firstExploitFrom":"PoC-in-GitHub","daysToKev":21},"priority":{"score":69.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1687 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.92,"detail":"percentile 0.9958"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"4 PoC-in-GitHub repos; 1 Metasploit module"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}