{"cveID":"CVE-2022-20699","vendorProject":"Cisco","product":"Small Business RV160, RV260, RV340, and RV345 Series Routers","vulnerabilityName":"Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability","dateAdded":"2022-03-03","shortDescription":"A vulnerability in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code elevate privileges, execute arbitrary commands, bypass authentication and authorization protections, fetch and run unsigned software, or cause a denial of service (DoS).","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-03-17","knownRansomwareCampaignUse":"Unknown","notes":"https://nvd.nist.gov/vuln/detail/CVE-2022-20699","cwes":["CWE-785"],"year":2022,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2022-20699","technique":"T1133","technique_name_at_mapping":"External Remote Services","mapping_type":"exploitation_technique","capability_group":"buffer_overflow","comments":"This vulnerability is exploited by a remote, unauthenticated attacker by \"sending a specially crafted HTTP request to a vulnerable device that is acting as an SSL VPN Gateway.” This can be performed due to insufficient boundary checks when processing specific HTTP requests. If exploited, this could grant root privileges to the attacker. ","references":["https://www.tenable.com/blog/cve-2022-20699-cve-2022-20700-cve-2022-20708-critical-flaws-in-cisco-small-business-rv-series","https://www.zerodayinitiative.com/advisories/ZDI-22-414/","https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-smb-mult-vuln-KA9PK6D"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2022-20699","technique":"T1059.004","technique_name_at_mapping":"Unix Shell","mapping_type":"primary_impact","capability_group":"buffer_overflow","comments":"This vulnerability is exploited by a remote, unauthenticated attacker by \"sending a specially crafted HTTP request to a vulnerable device that is acting as an SSL VPN Gateway.” This can be performed due to insufficient boundary checks when processing specific HTTP requests. If exploited, this could grant root privileges to the attacker. ","references":["https://www.tenable.com/blog/cve-2022-20699-cve-2022-20700-cve-2022-20708-critical-flaws-in-cisco-small-business-rv-series","https://www.zerodayinitiative.com/advisories/ZDI-22-414/","https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-smb-mult-vuln-KA9PK6D"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1059.004","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Unix Shell","name_at_mapping":"Unix Shell","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":18,"has_detection_strategy":true},{"id":"T1133","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"External Remote Services","name_at_mapping":"External Remote Services","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":20,"has_detection_strategy":true}],"mapping_types":["exploitation_technique","primary_impact"],"has_exploitation_technique":true,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":[],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-23 05:47 UTC","_attack_version":"19.2"}