Is CVE-2026-26213 actively exploited?

No active exploitation of CVE-2026-26213 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-26213 be exploited remotely?

Partially. CVE-2026-26213 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-26213?

CVE-2026-26213 has a CVSS score of 8.7 (HIGH).

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HIGH

CVE-2026-26213

CWE-78Published: March 26, 2026· Updated: Mar 30, 2026

8.7

CVSS v3.1

EPSS:0.19%probability of exploitation in 30 daysPercentile:40.4th

Official Description

thingino-firmware versions up to the firmware-2026-03-16 release contains an unauthenticated os command injection vulnerability in the WiFi captive portal CGI script that allows remote attackers to execute arbitrary commands as root by injecting malicious code through unsanitized HTTP parameter names. Attackers can exploit the eval function in parse_query() and parse_post() functions to achieve remote code execution and perform privileged configuration changes including root password reset and SSH authorized_keys modification, resulting in full persistent device compromise.

NVD Source

Technical Analysis

CVE-2026-26213 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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