CVE Explorer

CVE-2026-31847

Hidden functionality in the /goform/setSysTools endpoint in Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 allows remote enablement of a Telnet service. By sending a crafted POST request with parameters such as telnetManageEn=true and telnetPwd, an authenticated attacker can activate a Telnet service on port 23. This exposes a privileged diagnostic interface that is not intended for external access and can be used to interact with the underlying system.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:00da65823235226ccbe188ffd2fc7053a0b5ee6a6240226a19681b114e89c28c

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Nebula 300+","vendor":"Nexxt Solutions","versions":[{"lessThanOrEqual":"Nebula300+_v12.01.01.37","status":"affected","version":"<= 12.01.01.37","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d551436a1f3a0ba27eb1080a93ced6e2e59828ea6d1941eb8cd81d7c7b9e0b66 · sha256:8aabda656bbe231c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":8.5,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:d551436a1f3a0ba27eb1080a93ced6e2e59828ea6d1941eb8cd81d7c7b9e0b66 · sha256:8aabda656bbe231c… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-912","description":"CWE-912 Hidden Functionality","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:d551436a1f3a0ba27eb1080a93ced6e2e59828ea6d1941eb8cd81d7c7b9e0b66 · sha256:8aabda656bbe231c… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"Firmware download","url":"https://nexxt-connectivity-frontend.s3.amazonaws.com/media/docs/Nebula300+_v12.01.01.37.zip"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d551436a1f3a0ba27eb1080a93ced6e2e59828ea6d1941eb8cd81d7c7b9e0b66 · sha256:8aabda656bbe231c… · /containers/cna/references/1

{"name":"Official product page","url":"https://www.nexxtsolutions.com/connectivity/internal-products/ARN02304U6/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d551436a1f3a0ba27eb1080a93ced6e2e59828ea6d1941eb8cd81d7c7b9e0b66 · sha256:8aabda656bbe231c… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer