CVE-2026-119739

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://mstreet97.github.io/security-research/vulnerability-disclosure/embedded/cve/2026/10/29/From-UART-to-root-android-version.html
https://www.vulncheck.com/advisories/amlogic-droidlogic-subtitleservice-out-of-bounds-write-via-vobsub-set-contr

Configurations

No configuration.

History

02 Nov 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-11-02 20:17

Updated : 2026-11-03 16:30

NVD link : CVE-2026-119739

Mitre link : CVE-2026-119739

CVE.ORG link : CVE-2026-119739

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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