Read the docs
TI-2026-70980 Aliases CVE-2026-108895GHSA-v6gp-cmwg-49h5

OS command injection in Linksys E1700 setDMZ function

Priority HIGH 76CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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

Linksys E1700 firmware 1.0.0.4.003 contains an OS command injection flaw in the setDMZ function of /goform/setDMZ. Manipulating the MAC_addr argument lets a remote attacker run operating system commands, which is tracked as CWE-78. The attack needs low privileges and no user interaction. A public exploit is available, and the vendor did not respond to early disclosure.

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

Description from the CNA

A weakness has been identified in Linksys E1700 1.0.0.4.003. The affected element is the function setDMZ of the file /goform/setDMZ. Executing a manipulation of the argument MAC_addr can lead to os command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02202 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged 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
No
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
LinksysE17001.0.0.4.003—No fix listedCNA
  • E1700 VendorLinksys Affected 1.0.0.4.003 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:o:linksys:e1700_firmware:*:*:*:*:*:*:*:*——Linksys
  • cpe:2.3:o:linksys:e1700_firmware:*:*:*:*:*:*:*:* Versions — — ·Linksys

Remediation

The sources list no fixed version for Linksys E1700.

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

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-108895
  2. 2026-10-12 Alias added: GHSA-v6gp-cmwg-49h5
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-10-13 Priority changed: MEDIUM → HIGH

References

Exploit 1

Other 1

  • TI-2025-24206 Linksys Routers E/WAG/WAP/WES/WET/WRT-Series CVSS 4.0CRITICAL 10.0
  • TI-2017-12715 OS command injection in Linksys WVBR0 CVSS 3.0CRITICAL 9.8
  • TI-2026-70977 Stack-based buffer overflow in Linksys E1700 Mac Filter CVSS 4.0CRITICAL 10.0
  • TI-2026-22199 Missing neutralization in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
  • TI-2026-22198 Missing neutralization in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
  • TI-2026-22197 Missing authentication in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
See all 253 →

Sources

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