CVE-2025-3993
published 2025-04-28CVE-2025-3993: A vulnerability was found in TOTOLINK N150RT 3.4.0-B20190525 and classified as critical. This issue affects some unknown processing of the file…
PriorityP261high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
0.85%
53.6th percentile
A vulnerability was found in TOTOLINK N150RT 3.4.0-B20190525 and classified as critical. This issue affects some unknown processing of the file /boafrm/formWsc. The manipulation of the argument submit-url leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| totolink | n150rt | — | — |
| totolink | n150rt_firmware | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Exploit targets HTTP POST requests to URI paths beginning with /boafrm/form followed by one of: Vlan, WdsEncrypt, Wlwds, or Wsc — specifically /boafrm/formWsc for CVE-2025-3993.
- →Attack is unauthenticated (no Cookie header) and initiated remotely over plaintext HTTP, targeting networking equipment on the perimeter or internal network.
- →Public exploit PoC is available in the referenced GitHub repository for TOTOLINK N150RT. ↗
- ·The Snort/Suricata rule (sid:2062172) covers four related CVEs (CVE-2025-3990 through CVE-2025-3993) across multiple endpoints; tune or split the rule if per-CVE granularity is required.
- ·The affected firmware version is TOTOLINK N150RT 3.4.0-B20190525; verify device inventory against this specific version before deploying detections. ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.7HIGHCVSS: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:X/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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Suricata
ET WEB_SPECIFIC_APPS Totolink BufferOverflow Attempt multiple URI endpoints submit-url Parameter Buffer Overflow Attempt (CVE-2025-3990, CVE-2025-3993)
suricata·2025-05-08·CVSS 8.7
CVE-2025-3990 [HIGH] ET WEB_SPECIFIC_APPS Totolink BufferOverflow Attempt multiple URI endpoints submit-url Parameter Buffer Overflow Attempt (CVE-2025-3990, CVE-2025-3993)
ET WEB_SPECIFIC_APPS Totolink BufferOverflow Attempt multiple URI endpoints submit-url Parameter Buffer Overflow Attempt (CVE-2025-3990, CVE-2025-3993)
Rule: alert http1 any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Totolink BufferOverflow Attempt multiple URI endpoints submit-url Parameter Buffer Overflow Attempt (CVE-2025-3990, CVE-2025-3993)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/boafrm/form"; startswith; pcre:"/^(?:Vlan|WdsEncrypt|Wlwds|Wsc)/R"; http.request_body; content:"submit-url"; fast_pattern; pcre:"/^\x3d[^\x26$]{100,}(?:\x26|$)/R"; http.header_names; content:!"|0d 0a|Cookie|0d 0a|"; reference:cve,2025-3990; reference:cve,2025-3991; reference:cve,2025-3992; reference:cve,2025-3993; reference:url,github.com/fizz-is-on-the-way/Iot_vul
No public exploits indexed.
No writeups or analysis indexed.
2025-04-28
Published