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4 vulnerabilities found for openNDS by openNDS
CVE-2026-38822 (GCVE-0-2026-38822)
Vulnerability from cvelistv5
Published
2026-08-28 00:12
Modified
2026-08-28 15:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Summary
In openNDS before 11.0.0, the client_params.sh script, invoked by the openNDS daemon to serve the authenticated client status page, is vulnerable to OS command injection through crafted HTTP GET query parameter keys. An authenticated captive portal user can inject arbitrary shell commands by embedding semicolons in a URL query parameter name.
References
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CVE-2026-38821 (GCVE-0-2026-38821)
Vulnerability from cvelistv5
Published
2026-08-28 00:10
Modified
2026-08-28 15:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-122 - Heap-based Buffer Overflow
Summary
A heap-based buffer overflow vulnerability exists in openNDS before 11.0.0 that allows an unauthenticated attacker on the captive portal network to crash the openNDS daemon (denial of service) and potentially achieve remote code execution. This is in http_microhttpd.c.
References
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CVE-2026-38820 (GCVE-0-2026-38820)
Vulnerability from cvelistv5
Published
2026-08-28 00:07
Modified
2026-08-28 16:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Summary
openNDS before 11.0.0 is susceptible to unauthenticated OS command execution via shell command injection through the fas query parameter on the /opennds_preauth/ endpoint because of libopennds.sh.
References
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CVE-2026-38819 (GCVE-0-2026-38819)
Vulnerability from cvelistv5
Published
2026-08-28 00:03
Modified
2026-08-28 16:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Summary
Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated attacker on the captive portal network to exhaust all available memory on the device within minutes.
References
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