cbcvebase.
CVE-2025-12272
published 2025-10-27

CVE-2025-12272: A security flaw has been discovered in Tenda CH22 1.0.0.1. This impacts the function fromAddressNat of the file /goform/addressNat. Performing a manipulation…

PriorityP262critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.68%
48.1th percentile
A security flaw has been discovered in Tenda CH22 1.0.0.1. This impacts the function fromAddressNat of the file /goform/addressNat. Performing a manipulation of the argument page results in buffer overflow. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

Affected

2 ranges
VendorProductVersion rangeFixed in
tendach22——
tendach22_firmware——

Detection & IOCsextracted from sources · hover to see the quote

path/goform/addressNat↗
snort
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Tenda addressNat Multiple Parameters Buffer Overflow Attempt (CVE-2025-12272)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:18; content:"/goform/addressNat"; fast_pattern; http.request_body; pcre:"/(?:mitInterface|page)[^\x2c\x7d$]{100,}(?:\x2c|\x7d|$)/"; reference:url,github.com/WhereisDoujo/CVE/issues/5; reference:cve,2025-12272; classtype:web-application-attack; sid:2063030; rev:2; metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_06_17, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)
  • →Attack targets the `fromAddressNat` function via HTTP POST to `/goform/addressNat`; the vulnerable parameters are `page` and `mitInterface` — oversized values (100+ chars) in the POST body trigger the buffer overflow. ↗
  • →Detection regex for the POST body: match either `mitInterface` or `page` parameter followed by 100 or more non-delimiter characters before a comma, closing brace, or end-of-string — indicating an oversized payload.
  • →The URI path `/goform/addressNat` has an exact byte size of 18; use `bsize:18` alongside the content match to reduce false positives.
  • →Attack is remote, unauthenticated, and exploit code is publicly available; prioritize perimeter and internal network monitoring for POST requests to this endpoint on Tenda CH22 devices.
  • →Traffic is expected in plaintext (not TLS); focus inspection on unencrypted HTTP flows.
  • ·The rule targets `$HOME_NET` as the destination; confirm Tenda CH22 devices are included in your `$HOME_NET` definition, particularly if they reside in a DMZ or IoT VLAN.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/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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