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CVE Record

CVE-2014-6336: Outlook Web App (OWA) in Microsoft Exchange Server 2013 SP1 and Cumulative Update 6 does not properly valid...

Outlook Web App (OWA) in Microsoft Exchange Server 2013 SP1 and Cumulative Update 6 does not properly validate redirection tokens, which allows remote attackers to redirect users to arbitrary web sites and spoof the origin of e-mail messages via unspecified vectors, aka "Exchange URL Redirection Vulnerability."

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This flaw affects Outlook Web App in Microsoft Exchange Server 2013 SP1 and Cumulative Update 6. It can let a remote attacker redirect users to arbitrary websites and spoof an email message's apparent origin. The business risk is mainly phishing, credential theft, and trust abuse through an Exchange-facing workflow.

Executive priority

Treat as a targeted phishing and trust-abuse risk for legacy Exchange environments. Prioritize remediation if affected OWA is internet-facing or used by high-value staff, but the provided evidence does not support labeling it as actively exploited.

Technical view

OWA does not properly validate redirection tokens. The CVE states remote attackers may redirect users to arbitrary websites and spoof email origin via unspecified vectors. The provided sources do not include CVSS, CWE, detailed attack preconditions, or proof-of-concept information.

Likely exposure

Exposure is most likely for organizations still running Microsoft Exchange Server 2013 SP1 or Cumulative Update 6 with OWA enabled, especially if OWA is internet-facing. Later versions or patched systems are not identified as affected in the provided bundle.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The issue is remotely reachable in affected OWA deployments, but technical vectors are unspecified, so exploitation feasibility cannot be fully assessed from the provided evidence.

Researcher notes

Key gaps are lack of CVSS, CWE, exploit details, and explicit preconditions in the provided bundle. Validation should focus on version exposure, patch state, OWA reachability, and whether users could be steered through trusted Exchange-branded flows.

Mitigation direction

  • Review Microsoft MS14-075 for the vendor security update and deployment guidance.
  • Patch affected Exchange Server 2013 SP1 or CU6 systems per Microsoft guidance.
  • Reduce unnecessary internet exposure of OWA while remediation is pending.
  • Warn users about unexpected OWA redirects and suspicious email origin indicators.

Validation and detection

  • Inventory Exchange Server versions and confirm whether OWA is enabled.
  • Check whether MS14-075-related Exchange updates are installed.
  • Confirm no affected Exchange 2013 SP1 or CU6 hosts remain exposed.
  • Review OWA logs and helpdesk reports for suspicious redirect-related activity.
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

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CVE-2014-6336 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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