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CVE Record

CVE-2026-27299: Adobe Framemaker | Improper Input Validation (CWE-20)

Adobe Framemaker versions 2022.8 and earlier are affected by an Improper Input Validation vulnerability that could lead to arbitrary file system read. An attacker could leverage this vulnerability to access sensitive files or data on the system. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

MediumCVSS 6.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A malicious FrameMaker document could expose sensitive files from a victim’s computer when opened. The issue does not alter files or disrupt service, but stolen credentials, configuration data, or business documents could create follow-on risk.

Executive priority

Treat as a scheduled, prompt remediation for affected document-processing workstations. Accelerate action for users handling external files or systems storing valuable credentials and confidential data. Emergency incident response is not supported by the supplied exploitation evidence.

Technical view

CVE-2026-27299 is an improper input validation flaw in Adobe FrameMaker 2022.8 and earlier. A local attack requiring no prior privileges but requiring victim interaction can cause arbitrary file-system reads. CVSS 3.1 is 6.3, with high confidentiality impact, changed scope, and no stated integrity or availability impact.

Likely exposure

Exposure is limited to endpoints running FrameMaker 2022.8 or earlier, particularly where users receive or open untrusted FrameMaker files. Systems without affected FrameMaker versions are not indicated as exposed by the supplied sources.

Exploitation context

Exploitation requires a victim to open a malicious file. The supplied record is not listed in CISA KEV, and the source bundle provides no evidence of active exploitation or publicly available exploit tooling.

Researcher notes

The record classifies the flaw as CWE-20 and describes arbitrary file-system read. The CVSS vector is AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N. The sources do not describe the malformed file structure, reachable parser, affected file types, exploit prevalence, or specific corrected release; consult Adobe’s advisory for remediation details.

Mitigation direction

  • Identify and prioritize endpoints running FrameMaker 2022.8 or earlier.
  • Check Adobe advisory APSB26-36 for the supported corrected version and installation guidance.
  • Until remediated, restrict opening FrameMaker files from unknown or untrusted sources.
  • Use email and endpoint controls to quarantine suspicious FrameMaker documents.

Validation and detection

  • Inventory installed FrameMaker versions across managed endpoints.
  • Confirm affected installations no longer report version 2022.8 or earlier after remediation.
  • Review security controls for handling untrusted FrameMaker files.
  • Monitor vendor guidance for updated affected-version or remediation information.
Prepared
Confidence
high
Sources
3

Public sources used

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-20: Exact CWE lookup

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description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-27299 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
Medium
CVSS
6.3 (3.1)
Known Exploited
No
Published

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

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
6.3CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N1.84adobe

Vulnerability scoring details

Base CVSS 3.1 score

6.3Medium
CVSS 3.1 vector shape for CVE-2026-27299Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
AdobeAdobe Framemaker0, 2022.9unaffected
Weakness

CWE details

CWE-20

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