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CVE-2026-27663

A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.10), RTUM85 RTU Base (All versions < V26.10). The affected application contains denial-of-service (DoS) vulnerability. The remote operation mode is susceptible to a resource exhaustion condition when subjected to a high volume of requests. Sending multiple requests can exhaust resources, preventing parameterization and requiring a reset or reboot to restore functionality.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:32b68817a37917d64c206d4b7e7862a7e3b3bec2807e9451b5ee86edeb378fba
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":"unknown","product":"CPCI85 Central Processing/Communication","vendor":"Siemens","versions":[{"lessThan":"V26.10","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"RTUM85 RTU Base","vendor":"Siemens","versions":[{"lessThan":"V26.10","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/affected/1
cvss · 2 assertions

{"metric":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/metrics/0/cvssV3_1

{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/metrics/1/cvssV4_0

Affected products and versions

2 source assertions
{"defaultStatus":"unknown","product":"CPCI85 Central Processing/Communication","vendor":"Siemens","versions":[{"lessThan":"V26.10","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"RTUM85 RTU Base","vendor":"Siemens","versions":[{"lessThan":"V26.10","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/affected/1

Provider-owned CVSS observations

2 source assertions
{"metric":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/metrics/1/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"http://seclists.org/fulldisclosure/2026/Apr/6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /containers/adp/1/references/0
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-246443.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f678d86a16af2d0785d7055c111686b36774a9daed748b8636ea7e03bdf5b126 · sha256:6f191b92cfe8218d… · /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.

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