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CVE-2026-26335

Calero VeraSMART versions prior to 2022 R1 use static ASP.NET/IIS machineKey values configured for the VeraSMART web application and stored in C:\\Program Files (x86)\\Veramark\\VeraSMART\\WebRoot\\web.config. An attacker who obtains these keys can craft a valid ASP.NET ViewState payload that passes integrity validation and is accepted by the application, resulting in server-side deserialization and remote code execution in the context of the IIS application.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b4a7c43232045ce25a7045a79582ff196d012f3b0bbd060ebddcc6358ab34f2f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"VeraSMART","vendor":"Calero","versions":[{"lessThan":"2022 R1","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2298a41d3f5351b1018dd7a2760feea47b7e71348811ec369892a5ad8c052844 · sha256:2523f22244c18587… · /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":9.3,"baseSeverity":"CRITICAL","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:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2298a41d3f5351b1018dd7a2760feea47b7e71348811ec369892a5ad8c052844 · sha256:2523f22244c18587… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-321","description":"CWE-321 Use of Hard-coded Cryptographic Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2298a41d3f5351b1018dd7a2760feea47b7e71348811ec369892a5ad8c052844 · sha256:2523f22244c18587… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["product"],"url":"https://www.calero.com/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2298a41d3f5351b1018dd7a2760feea47b7e71348811ec369892a5ad8c052844 · sha256:2523f22244c18587… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/calero-verasmart-2022-r1-static-iis-machine-keys-enable-viewstate-rce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2298a41d3f5351b1018dd7a2760feea47b7e71348811ec369892a5ad8c052844 · sha256:2523f22244c18587… · /containers/cna/references/1

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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