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CVE Record

CVE-2026-27307: ColdFusion | Uncontrolled Resource Consumption (CWE-400)

ColdFusion versions 2023.18, 2025.6 and earlier are affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. A high-privileged attacker could exploit this vulnerability and exhaust system resources, reducing application speed. Exploitation of this issue does not require user interaction.

LowCVSS 2.4Not KEV-listedUpdated
Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

A highly privileged attacker with adjacent-network access could make affected Adobe ColdFusion applications consume excessive resources, slowing service or causing denial-of-service. The issue does not expose or alter data according to the supplied CVSS assessment. Its low severity reflects limited availability impact and substantial attacker prerequisites.

Executive priority

Treat this as routine but time-bound maintenance rather than an emergency. Confirm exposure and follow Adobe's advisory during the normal patch cycle. Accelerate remediation for business-critical ColdFusion services, weakly segmented environments, or systems with broadly assigned administrative privileges.

Technical view

CVE-2026-27307 is a CWE-400 uncontrolled resource consumption flaw affecting ColdFusion 2023.18, ColdFusion 2025.6, and earlier versions according to the description. It has CVSS 3.1 score 2.4: adjacent access, low complexity, high privileges, no user interaction, unchanged scope, and low availability impact.

Likely exposure

Exposure is most plausible where an attacker already has high privileges and can reach ColdFusion from an adjacent network. Internet accessibility alone does not match the supplied CVSS vector. The bundle's structured affected-version entries are ambiguous, so confirm precise affected and corrected versions with Adobe.

Exploitation context

No active exploitation is established by the supplied sources, and the CVE is not identified as KEV. Exploitation requires no user interaction but does require high privileges and adjacent-network access. The expected outcome is resource exhaustion, degraded application speed, or denial-of-service—not confidentiality or integrity loss.

Researcher notes

The stated impact is availability-only resource exhaustion under CWE-400. CVSS prerequisites materially constrain risk: AV:A, PR:H, UI:N, with low availability impact. The description names 2023.18 and 2025.6 and earlier, while structured affected entries appear inconsistent; do not infer exact fixed releases without consulting APSB26-38.

Mitigation direction

  • Review Adobe advisory APSB26-38 for the supported update or remediation applicable to each ColdFusion deployment.
  • Prioritize systems where privileged users can access ColdFusion across adjacent or insufficiently segmented networks.
  • Restrict privileged ColdFusion access to trusted administrators and necessary management networks.
  • Monitor application and host resource consumption for unusual sustained exhaustion.

Validation and detection

  • Inventory deployed ColdFusion editions and exact versions, including development, staging, and disaster-recovery systems.
  • Compare each version against Adobe APSB26-38 because the bundle's structured version ranges are ambiguous.
  • Verify privileged access paths and determine whether untrusted adjacent-network users can reach the application.
  • Confirm remediation through version evidence and normal resource behavior without attempting denial-of-service testing.
Prepared
Confidence
high
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

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cwe · low confidence lookup

CWE-400: Exact CWE lookup

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cve · low confidence lookup

CVE-2026-27307 mapping review

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Vulnerability profileCVE Program record
Severity
Low
CVSS
2.4 (3.1)
Known Exploited
No
Published

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

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: noTechnical Impact: partial

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
2.4CVSS 3.1LowCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L0.91.4adobe

Vulnerability scoring details

Base CVSS 3.1 score

2.4Low
CVSS 3.1 vector shape for CVE-2026-27307Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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, 7unaffected
AdobeColdFusion 20230, 19unaffected
Weakness

CWE details

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

CWE-400 · source CWE mapping

Uncontrolled Resource Consumption

Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.