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CVE-2026-12562

The RCU II+ and Multiload II+ are vulnerable to an unauthenticated service that exposes a debug interface granting full root-level access to the embedded system. This vulnerability stems from a network-accessible port running a Target Communications Framework (TCF) service that does not require any authentication, allowing an attacker to directly interact with the Linux environment that powers the device. Once connected, an attacker can freely view and modify the filesystem, manipulate ru
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:97d8b20d52e5a62e01a1fdd28317ab5a41751ff0a90a52c20c0b9bcafad3c64a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"RCU II+","vendor":"Toptech Systems","versions":[{"lessThan":"2025-11-24","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Multiload II+","vendor":"Toptech Systems","versions":[{"lessThan":"2025-11-24","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/affected/1
cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/metrics/0/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","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:N/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:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/metrics/1/cvssV4_0

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"RCU II+","vendor":"Toptech Systems","versions":[{"lessThan":"2025-11-24","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Multiload II+","vendor":"Toptech Systems","versions":[{"lessThan":"2025-11-24","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/affected/1

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","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:N/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:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/metrics/1/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-306","description":"CWE-306","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-03.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/references/5
{"url":"https://s3.amazonaws.com/docs.toptech.com/index.html#downloads/Firmware/RCUII+_MLII+_SMPII+/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/references/2
{"url":"https://s3.amazonaws.com/docs.toptech.com/nonpublic/2025%2012%2001%20RCU%20IIPlus%20MultiLoad%20IIPlus%20Vulnerability%20Notice.pdf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/references/3
{"url":"https://s3.amazonaws.com/docs.toptech.com/nonpublic/rcuiip_mliip_vrt.gz"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/references/1
{"url":"https://s3.amazonaws.com/docs.toptech.com/nonpublic/rcuiip_mliip_vrt.zip"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/references/0
{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-03"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bd0ee7f5f6fa33fd20e1b5e74ee3aba6da09c6656a69657df2d4fe55c60caaa9 · sha256:72536cb24c077257… · /containers/cna/references/4

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.

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