{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-11557: Tenda F451 Web Management Natlimit fromNatlimit stack-based overflow","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-11557","status":"final","version":"1","initial_release_date":"2026-06-08T18:15:10.637Z","current_release_date":"2026-06-08T19:52:29.251Z","revision_history":[{"date":"2026-06-08T18:15:10.637Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"A weakness has been identified in Tenda F451 1.0.0.7/1.0.0.9. The affected element is the function fromNatlimit of the file /goform/Natlimit of the component Web Management Interface. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-11557 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-11557"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-11557"},{"category":"external","summary":"VDB-369167 | Tenda F451 Web Management Natlimit fromNatlimit stack-based overflow","url":"https://vuldb.com/vuln/369167"},{"category":"external","summary":"VDB-369167 | CTI Indicators (IOB, IOC, IOA)","url":"https://vuldb.com/vuln/369167/cti"},{"category":"external","summary":"CVE-2026-11557 | CVE Analysis and Report","url":"https://vuldb.com/cve/CVE-2026-11557"},{"category":"external","summary":"Submit #836477 | Tenda Tenda F451 Wireless Router V1.0.0.7, V1.0.0.9 Stack-based Buffer Overflow","url":"https://vuldb.com/submit/836477"},{"category":"external","summary":"github.com","url":"https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/fromNatlimit/fromNatlimit.md"},{"category":"external","summary":"tenda.com.cn","url":"https://www.tenda.com.cn/"}]},"product_tree":{"branches":[{"category":"vendor","name":"Tenda","branches":[{"category":"product_name","name":"F451","branches":[{"category":"product_version","name":"1.0.0.7","product":{"name":"Tenda F451 1.0.0.7","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:tenda:f451:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"1.0.0.9","product":{"name":"Tenda F451 1.0.0.9","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:tenda:f451:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-11557","title":"Tenda F451 Web Management Natlimit fromNatlimit stack-based overflow","notes":[{"category":"description","text":"A weakness has been identified in Tenda F451 1.0.0.7/1.0.0.9. The affected element is the function fromNatlimit of the file /goform/Natlimit of the component Web Management Interface. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","baseScore":8.7,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-2"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1","CSAFPID-2"]}]}]}