CVE Explorer

CVE-2026-1773

IEC 60870-5-104 used in RTU500: Potential Denial of Service impact on reception of invalid U-format frame. Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a0286812a60db2499e333eabf9df780a7949c2fb5874167e6bd513690056f7a1

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"RTU500 series CMU firmware","vendor":"Hitachi Energy","versions":[{"lessThanOrEqual":"12.7.7","status":"affected","version":"12.7.1","versionType":"custom"},{"lessThanOrEqual":"13.5.4","status":"affected","version":"13.5.1","versionType":"custom"},{"lessThanOrEqual":"13.6.2","status":"affected","version":"13.6.1","versionType":"custom"},{"lessThanOrEqual":"13.7.7","status":"affected","version":"13.7.1","versionType":"custom"},{"status":"affected","version":"13.8.1","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1631248577085f25681084928e962d72ef6e5c45c73f0a9076dacd2e65ea157f · sha256:f03846ef8dd38a99… · /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":"NETWORK","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:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:1631248577085f25681084928e962d72ef6e5c45c73f0a9076dacd2e65ea157f · sha256:f03846ef8dd38a99… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-184","description":"CWE-184 Incomplete List of Disallowed Inputs","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:1631248577085f25681084928e962d72ef6e5c45c73f0a9076dacd2e65ea157f · sha256:f03846ef8dd38a99… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://publisher.hitachienergy.com/preview?DocumentID=8DBD000237&LanguageCode=en&DocumentPartId=&Action=Launch"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1631248577085f25681084928e962d72ef6e5c45c73f0a9076dacd2e65ea157f · sha256:f03846ef8dd38a99… · /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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