PatchTheCVECVE-2026-26213: thingino-firmware versions up to the firmware-2026-03-16 release contains an unauthenticated os command inject
CVE-2026-26213 is a critical-severity flaw (CVSS 9.8) affecting thingino firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 configu
Why this priority
- Critical severity
- EPSS top 8%: very likely to be exploited
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 4.7% (top 8%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2026-03-26 |
| Last modified | 2026-07-14 |
Last updated 2026-07-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-26213?
thingino firmware: upgrade to newer than 2026-03-15. Exact commands for each OS are on this page.
Is CVE-2026-26213 being exploited?
CVE-2026-26213 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-26213 affect?
CVE-2026-26213 affects thingino firmware. Severity is critical (CVSS 9.8). 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 inje
How urgent is CVE-2026-26213?
Priority 62/100. Critical severity; EPSS top 8%: very likely to be exploited; Remotely exploitable, no login, no user action