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TI-2026-70883 Aliases CVE-2026-108804GHSA-7h8p-2xqf-85x7

OS command injection in TRENDnet TEW-751DR and related routers

Priority HIGH 82CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

TRENDnet TEW-751DR, TEW-752DRU and TEW733GR routers from 1.03B01 and 1.03B03 have an OS command injection flaw (CWE-78) in the fwrite function of pigwidgeon.cgi. The service argument is not neutralized before it reaches OS commands, so a remote attacker needs no credentials or user action to run commands. A public exploit is linked in the references. The vendor says these products are end of life.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02318 83rd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TRENDnetTEW-751DR1.03B01; 1.03B03—No fix listedCNA
TRENDnetTEW-752DRU1.03B01; 1.03B03—No fix listedCNA
TRENDnetTEW733GR1.03B01; 1.03B03—No fix listedCNA
  • TEW-751DR VendorTRENDnet Affected 1.03B01; 1.03B03 Fixed in — No fix listed CNA
  • TEW-752DRU VendorTRENDnet Affected 1.03B01; 1.03B03 Fixed in — No fix listed CNA
  • TEW733GR VendorTRENDnet Affected 1.03B01; 1.03B03 Fixed in — No fix listed CNA

CPE names CNA · 3

CPEVersionsRoleVendor
cpe:2.3:a:trendnet:tew-751dr:*:*:*:*:*:*:*:*——TRENDnet
cpe:2.3:a:trendnet:tew-752dru:*:*:*:*:*:*:*:*——TRENDnet
cpe:2.3:a:trendnet:tew733gr:*:*:*:*:*:*:*:*——TRENDnet
  • cpe:2.3:a:trendnet:tew-751dr:*:*:*:*:*:*:*:* Versions — — ·TRENDnet
  • cpe:2.3:a:trendnet:tew-752dru:*:*:*:*:*:*:*:* Versions — — ·TRENDnet
  • cpe:2.3:a:trendnet:tew733gr:*:*:*:*:*:*:*:* Versions — — ·TRENDnet

Remediation

The sources list no fixed version for TEW-751DR, TEW-752DRU or TEW733GR.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-108804
  2. 2026-10-12 Alias added: GHSA-7h8p-2xqf-85x7
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-16 Priority changed: MEDIUM → HIGH

References

Exploit 2

  • TI-2015-01070 The ping tool in multiple D-Link and TRENDnet devices allow remote attackers to execute… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-54249 TRENDnet TEW-821DAP NTP Timezone Configuration apply_time.cgi uci_safe_get stack-based overflow CVSS 4.0CRITICAL 10.0
  • TI-2026-53047 TRENDnet TEW-WLC100 HTTP Header nginx FUN_0040da4c stack-based overflow CVSS 4.0CRITICAL 10.0
  • TI-2026-53046 TRENDnet TEW-WLC100P DHCP blobmsg netifd stack-based overflow CVSS 4.0CRITICAL 9.4
  • TI-2024-37951 TRENDnet TEW-632BRP v1.010B31 devices have an OS command injection vulnerability in the… CVSS 3.1CRITICAL 9.8
  • TI-2024-34076 The boa httpd of Trendnet TEW-820AP 1.01.B01 has a stack overflow vulnerability in… CVSS 3.1CRITICAL 9.8
See all 240 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences