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CVE Record

CVE-2026-48277: ColdFusion | Improper Input Validation (CWE-20)

ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction. Scope is changed.

CriticalCVSS 10Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

This critical ColdFusion flaw may let an unauthenticated remote attacker run code with the application’s current-user privileges. No user action is required. A successful compromise could expose data, alter systems, or disrupt service, particularly where affected ColdFusion instances are reachable over a network.

Executive priority

Treat as an immediate remediation priority for reachable ColdFusion systems. Assign ownership, identify exposed instances, and follow Adobe’s guidance promptly. Escalate internet-facing or business-critical deployments first because the stated impact includes unauthenticated arbitrary code execution and complete confidentiality, integrity, and availability compromise.

Technical view

CVE-2026-48277 is an improper input validation vulnerability, classified as CWE-20. Its CVSS 3.1 vector indicates network access, low attack complexity, no privileges or interaction, changed scope, and high confidentiality, integrity, and availability impact. The supplied description identifies ColdFusion 2025.9, 2023.20, and earlier as affected.

Likely exposure

Highest risk applies to network-reachable ColdFusion deployments running the stated affected releases, especially internet-facing applications. Internal instances remain exposed to attackers with network access. The source bundle does not identify vulnerable components, configurations, or reliable external detection signatures.

Exploitation context

The supplied CVSS and description indicate unauthenticated, low-complexity remote exploitation without user interaction. The bundle marks this CVE as absent from KEV and provides no evidence of observed exploitation, public exploit availability, or exploitation prerequisites beyond network access.

Researcher notes

The supplied structured affected data appears inconsistent with the narrative: it lists version values “0” and “10” or “21” with default status unaffected, while the description says 2025.9, 2023.20, and earlier are affected. Confirm authoritative version boundaries through Adobe. No vulnerable endpoint, root cause detail, indicators, patch version, or exploit evidence is supplied.

Mitigation direction

  • Inventory ColdFusion deployments and compare installed versions with Adobe’s advisory.
  • Apply Adobe’s documented update or mitigation after confirming applicable versions and prerequisites.
  • Restrict unnecessary network access to ColdFusion while remediation is pending.
  • Isolate affected services and enforce least privilege for their operating accounts.

Validation and detection

  • Confirm each ColdFusion edition, exact version, patch level, and network exposure.
  • Verify remediation status against Adobe advisory APSB26-68.
  • Test that unnecessary external and internal access paths are blocked.
  • Review application and system telemetry for unexplained execution or configuration changes.
  • Document exceptions where version applicability remains uncertain.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-20: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2026-48277 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
10 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
10CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96adobe

Vulnerability scoring details

Base CVSS 3.1 score

10Critical
CVSS 3.1 vector shape for CVE-2026-48277Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AdobeColdFusion 20250, 10unaffected
AdobeColdFusion 20230, 21unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-20 · source CWE mapping

Improper Input Validation

Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.