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CVE Record

CVE-2021-33699: Task Hijacking is a vulnerability that affects the applications running on Android devices due to a misconf...

Task Hijacking is a vulnerability that affects the applications running on Android devices due to a misconfiguration in their AndroidManifest.xml with their Task Control features. This allows an unauthorized attacker or malware to takeover legitimate apps and to steal user's sensitive information.

HighCVSS 7.6Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This vulnerability affects SAP Fiori Client Native Mobile for Android before version 3.2. A malicious Android app or unauthorized attacker could impersonate or take over the legitimate app’s task flow and steal sensitive user information. The business risk is highest where employees use affected Android Fiori clients for enterprise access.

Executive priority

Treat as high priority if the organization uses SAP Fiori Client on Android for enterprise access. The likely impact is credential or sensitive-data exposure, but urgency should be scoped to confirmed Android client usage below version 3.2.

Technical view

CVE-2021-33699 is an Android task hijacking issue caused by AndroidManifest.xml task-control misconfiguration in SAP Fiori Client Native Mobile for Android versions below 3.2. CVSS 3.0 is 7.6 with no privileges required, user interaction required, and high confidentiality and integrity impact.

Likely exposure

Exposure is limited to Android deployments of SAP Fiori Client Native Mobile below 3.2. Organizations using only other SAP clients, non-Android platforms, or version 3.2 and later are not shown as affected by the supplied sources.

Exploitation context

The source bundle and KEV status do not indicate known active exploitation. The scenario described is task hijacking by an unauthorized attacker or malware on Android, with user interaction required. Evidence is insufficient to claim public exploit availability.

Researcher notes

The public data identifies the affected product and version boundary but provides limited implementation detail. Avoid expanding scope beyond SAP Fiori Client Native Mobile for Android before 3.2. Validate task-hijacking exposure through configuration and version review, not exploit reproduction.

Mitigation direction

  • Inventory Android devices for SAP Fiori Client Native Mobile versions below 3.2.
  • Review SAP Note 3067219 and SAP guidance for the supported remediation path.
  • Upgrade affected clients to a non-affected version where vendor guidance confirms coverage.
  • Restrict installation of untrusted Android apps on managed devices.
  • Monitor mobile endpoints for suspicious app overlays or task-switching behavior.

Validation and detection

  • Confirm installed SAP Fiori Client Native Mobile versions on Android fleets.
  • Check whether any business workflows still depend on versions below 3.2.
  • Review Android enterprise management reports for sideloaded or untrusted apps.
  • Validate remediation against SAP’s referenced advisory or note.
  • Record compensating controls for unmanaged Android users until upgraded.
Prepared
Confidence
medium
Sources
4

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.

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CVE-2021-33699 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
High
CVSS
7.6 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/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
0Timeline events
0ADP providers
3Source links

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
7.6CVSS 3.0HighCVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L2.15.5Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.6High
CVSS 3.0 vector shape for CVE-2021-33699Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SAP SESAP Fiori Client Native Mobile for Android< 3.2Listed
Weakness

CWE details

No CWE listed

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