CASCACascade Atlas

Evidence dossier

CVE-2023-26359

Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution

73.0–88.0Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.

State
PUBLISHED
Published
Mar 23, 2023
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

FIRST EPSS17.94%

2026-07-18 · v2026.06.15 · percentile 96.9%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

adobeoriginal assertion
container

Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution

CISA-ADPindependent enrichment
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CISA ADP Vulnrichment

CVEderivative copy
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CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.179370000000; percentile 0.968500000000

Applicability

Cited product scope

Trace impact →
AdobeColdFusion
[{"status": "affected", "version": "unspecified", "versionType": "custom", "lessThanOrEqual": "CF2018U15, CF2021U5"}, {"status": "affected", "version": "unspecified", "versionType": "custom", "lessThanOrEqual": "None"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:-:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update10:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update11:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update12:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update13:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update14:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update15:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update5:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update6:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update7:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update8:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2018:update9:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2021:-:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2021:update1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2021:update2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2021:update3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2021:update4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:adobe:coldfusion:2021:update5:*:*:*:*:*:*supported

Assessments

CVSS by origin

9.8
psirt@adobe.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
adobeCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.