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TI-2026-84026 Aliases CVE-2026-119739GHSA-mw5f-6hxf-hxw4

Out-of-bounds write in Amlogic DroidLogic VobSub subtitle decoder

Priority LOW 31CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

The libsub_vob VobSub decoder in Amlogic DroidLogic SubTitleService, as shipped on Nexbox A95X (Amlogic S905X) TV boxes, is affected. An unbounded array index in vob_fill_pixel() lets a crafted alpha value write past the fixed four-element PixelDatas array on the stack (CWE-787). A remote attacker can send malicious VobSub data over an unauthenticated network socket or through a malicious .sub file, causing silent stack corruption or a process crash. The references link an exploit.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

The VobSub subtitle decoder libsub_vob (part of the Amlogic DroidLogic SubTitleService), as shipped on Nexbox A95X (Amlogic S905X) TV boxes, contains an out-of-bounds write vulnerability in vob_fill_pixel() that allows remote attackers to corrupt stack memory by sending a crafted SET_CONTR command with an attacker-controlled alpha value that drives an unbounded array index (change_data) past the end of the fixed four-element PixelDatas array. Attackers can exploit this by sending malicious VobSub data over the unauthenticated tcp/10100 socket or via a malicious .sub file to zero out adjacent stack bytes, resulting in silent stack corruption or process crash.

Why it matters now

EPSS 0.00371 31st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
NexboxA95XNEXBOX-A95X-AP6330—No fix listedCNA
AmlogicAmlogic Android SDKall versions—No fix listedCNA
  • A95X VendorNexbox Affected NEXBOX-A95X-AP6330 Fixed in — No fix listed CNA
  • Amlogic Android SDK VendorAmlogic Affected all versions Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Nexbox A95X or Amlogic Android SDK.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-119739
  2. 2026-11-02 Alias added: GHSA-mw5f-6hxf-hxw4
  3. 2026-11-04 Priority changed: MEDIUM → LOW

References

Exploit 1

  • TI-2026-84024 Amlogic pppoe_wrapper Command Injection via AF_UNIX Socket CVSS 4.0HIGH 8.5
  • TI-2026-84025 Infinite loop in Amlogic DroidLogic SubTitleService VobSub decoder CVSS 4.0MEDIUM 6.9
  • TI-2026-84101 Unauthenticated UART console in Nexbox A95X TV boxes CVSS 4.0HIGH 7.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences