cbcvebase.
CVE-2025-5799
published 2025-06-06

CVE-2025-5799: A vulnerability was found in Tenda AC8 16.03.34.09. It has been declared as critical. Affected by this vulnerability is the function fromSetWirelessRepeat of…

PriorityP267high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
1.00%
58.8th percentile
A vulnerability was found in Tenda AC8 16.03.34.09. It has been declared as critical. Affected by this vulnerability is the function fromSetWirelessRepeat of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Affected

2 ranges
VendorProductVersion rangeFixed in
tendaac8——
tendaac8_firmware——

Detection & IOCsextracted from sources · hover to see the quote

url/goform/WifiExtraSet↗
path/goform/WifiExtraSet↗
snort
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Tenda WifiExtraSet wpapsk_crypto Parameter Buffer Overflow Attempt (CVE-2025-25663, CVE-2025-10838, CVE-2025-7596, CVE-2025-5799)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:20; content:"/goform/WifiExtraSet"; fast_pattern; http.request_body; content:"wpapsk_crypto|3d|"; pcre:"/^[^&]{100,}(?:&|$)/R"; reference:cve,2025-10838; reference:url,community.emergingthreats.net/t/ruleset-update-summary-2025-10-14-v11039/3081; reference:cve,2025-25663; reference:url,www.cve.org/CVERecord/SearchResults?query=wpapsk_crypto; reference:cve,2025-5799; reference:cve,2025-7596; classtype:web-application-attack; sid:2065201; rev:1; metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_10_15, cve CVE_2025_5799_CVE_2025_10838_CVE_2025_7596_CVE_2025_25663, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_15, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)
bytes
wpapsk_crypto=<100+ chars>
  • →Exploit arrives as an HTTP POST to /goform/WifiExtraSet with the wpapsk_crypto parameter set to a value of 100 or more characters (stack-based buffer overflow trigger). Match on POST method, exact URI length of 20 bytes, and body pattern wpapsk_crypto= followed by ≥100 non-ampersand characters.
  • →The vulnerable function is fromSetWirelessRepeat; look for stack-based buffer overflow conditions triggered via the wpapsk_crypto argument in POST body requests to Tenda AC8 devices (firmware 16.03.34.09). ↗
  • →Traffic is expected in plaintext (no TLS); deploy detection at the network perimeter and internally. The ET rule (sid:2065201) maps to MITRE ATT&CK T1190 (Exploit Public-Facing Application) under tactic TA0001 (Initial Access).
  • ·The Emerging Threats Snort/Suricata rule (sid:2065201) covers four CVEs simultaneously (CVE-2025-5799, CVE-2025-10838, CVE-2025-7596, CVE-2025-25663) all sharing the same /goform/WifiExtraSet wpapsk_crypto attack vector; tune or split the rule if per-CVE attribution is required.
  • ·The URI bsize match is exactly 20 bytes (/goform/WifiExtraSet); ensure your HTTP inspection engine supports the bsize keyword (Suricata 4.0+) or adapt accordingly for other platforms.

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.07.4HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
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