Security readout for executives and security teams
Plain-English summary
A mobile screen-mirroring app called Cast to TV Screen Mirroring (version 2.2.77) has a serious flaw. When it imports a file, an attacker can trick it into overwriting important internal files. That can let the attacker run code or expose sensitive data on the device. There is no confirmed active exploitation, but the severity is rated critical.
Executive priority
Medium enterprise priority. Severity is critical, but exposure depends on whether employees use this consumer casting app on managed devices. Direct IT to inventory and remove or update the app, and reinforce guidance to avoid importing untrusted files.
Technical view
CVE-2026-30282 is an arbitrary file overwrite issue in UXGROUP LLC Cast to TV Screen Mirroring v2.2.77, mapped to CWE-22 (Path Traversal) and CWE-73 (External Control of File Name or Path). During file import, insufficient validation lets an attacker write to critical internal files, enabling arbitrary code execution or information disclosure. CVSS 3.1 base is 9.0 (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H).
Likely exposure
Exposure is limited to endpoints, primarily mobile devices, running Cast to TV Screen Mirroring v2.2.77. User interaction is required to import a malicious file, so risk concentrates on users who sideload or accept files from untrusted sources. Enterprise exposure is typically low unless the app is broadly installed on managed or BYOD devices.
Exploitation context
No CISA KEV listing and no public reports of active exploitation are cited in the source bundle. A researcher advisory is tracked in the Secsys-FDU AF_CVEs GitHub issue tracker, indicating academic disclosure rather than in-the-wild use. Exploitation requires low privileges and user interaction to import an attacker-supplied file.
Researcher notes
Vulnerability aligns with CWE-22 and CWE-73 in the file import flow. CVSS scope change (S:C) with full CIA impact suggests the overwrite crosses trust boundaries within the app sandbox. No CPEs are enumerated and no fixed version is cited in the bundle; confirm affected build IDs and any newer releases via UXGROUP LLC and the Fudan Secsys advisory before scoping.
Mitigation direction
- Inventory managed devices for Cast to TV Screen Mirroring v2.2.77 via MDM.
- Check UXGROUP LLC and app store listings for a patched version and update.
- Restrict or uninstall the app on corporate-managed devices until fixed.
- Advise users not to import files from untrusted or unknown sources.
- Monitor vendor references (appcraze.co) and CVE record for remediation guidance.
Validation and detection
- Query MDM inventory for the app package and confirm version 2.2.77 presence.
- Compare installed version against latest available on official app stores.
- Review the CVE record and Secsys-FDU issue tracker for updated advisory details.
- Validate mobile app allow/deny lists reflect the vulnerable version.
- Confirm user awareness guidance about file imports has been distributed.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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.
Open ATT&CK lookupCWE-73: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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.
Open ATT&CK lookupExecution 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.
Open ATT&CK lookupFile 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 lookupCVE-2026-30282 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
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.
SSVC decision data
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H2.36CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://secsys.fudan.edu.cn/CVE reference, mitre
- https://appcraze.co/CVE reference, mitre
- https://github.com/Secsys-FDU/AF_CVEs/issues/27CVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
External Control of File Name or Path
External Control of File Name or Path represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.