CVE-2026-108894
CRITICAL 9.4A security flaw has been discovered in Linksys E1700 1.0.0.4.003. Impacted is the function addStaticRoute of the file /goform/addStaticRoute of the component Static Route Handler. Performing a manipulation of the argument staticRoute_IP_setting/staticRoute_Netmask_setting/staticRoute_Gateway_setting/staticRoute_Metric_setting results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severe if exploited (CVSS 9.4), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
2.2%chance of exploitation in 30 days · 82nd percentile
Impact if exploited
9.4CVSS 4.0 · CRITICAL
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-78: OS Command Injection
- CWE-77: Command Injection
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
References and research data (JSON)
All CVSS metrics
- CRITICAL 9.4 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P - CRITICAL 9.9 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R - CRITICAL 9.9 v3.0 · CNA Primary
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R - CRITICAL 9 v2.0 · CNA Primary
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR - HIGH 8.6 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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 - CRITICAL 9.9 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - HIGH 9 v2.0 · NVD Secondary
AV:N/AC:L/Au:S/C:C/I:C/A:C
References
Exploit-tagged references (not proof of a PoC)
- https://github.com/wudipjq/my_vuln/blob/main/Linksys3/vuln_68/68.md CVE record · VulDB · Updated 2026-10-12T14:00:15.516Z
NVD · CVE-2026-108894 · Updated 2026-10-14T18:17:31.883
Advisories
- https://vuldb.com/cve/CVE-2026-108894 CVE record · VulDB · Updated 2026-10-12T14:00:15.516Z
NVD · CVE-2026-108894 · Updated 2026-10-14T18:17:31.883 - https://vuldb.com/submit/973113 CVE record · VulDB · Updated 2026-10-12T14:00:15.516Z
NVD · CVE-2026-108894 · Updated 2026-10-14T18:17:31.883 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-97436 EUVD · EUVD-2026-97436
Technical & other
- https://vuldb.com/vuln/416686 CVE record · VulDB · Updated 2026-10-12T14:00:15.516Z
NVD · CVE-2026-108894 · Updated 2026-10-14T18:17:31.883 - https://vuldb.com/vuln/416686/cti CVE record · VulDB · Updated 2026-10-12T14:00:15.516Z
NVD · CVE-2026-108894 · Updated 2026-10-14T18:17:31.883 - https://www.linksys.com/ CVE record · VulDB · Updated 2026-10-12T14:00:15.516Z
NVD · CVE-2026-108894 · Updated 2026-10-14T18:17:31.883