Critical severity · published Oct 12, 2026
CVE-2026-108804
TRENDnet TEW-751DR/TEW-752DRU/TEW733GR Web Management Backend pigwidgeon.cgi fwrite os command injection
10.0
CVSS
2.3%
EPSS
No
On KEV
Description
A vulnerability was detected in TRENDnet TEW-751DR, TEW-752DRU and TEW733GR 1.03B01/1.03B03. Affected is the function fwrite of the file pigwidgeon.cgi of the component Web Management Backend. The manipulation of the argument service results in os command injection. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor confirms: "As this router was EOL'd in 2011, we have no way of testing if such vulnerability exists. We will notify our customers of a potential vulnerability on this product." This vulnerability only affects products that are no longer supported by the maintainer.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TE
TEW-751DR · TRENDnet
1.03B01; 1.03B03 · source: vendor
TE
TEW-752DRU · TRENDnet
1.03B01; 1.03B03 · source: vendor
TE
TEW733GR · TRENDnet
1.03B01; 1.03B03 · source: vendor