The VobSub subtitle decoder libsubvob (part of the Amlogic DroidLogic SubTitleService), as shipped on Nexbox A95X (Amlogic S905X) TV boxes,…
CVE-2026-119739
The VobSub subtitle decoder libsubvob (part of the Amlogic DroidLogic SubTitleService), as shipped on Nexbox A95X (Amlogic S905X) TV boxes, contains an out-of-bounds write vulnerability in vobfillpixel() that allows remote attackers to corrupt stack memory by sending a crafted SETCONTR command with an attacker-controlled alpha value that drives an unbounded array index (changedata) 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.
Assessment
- CVSS
- 6.9 (v4.0)
- Severity
- Medium
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 2 November 2026
- Last updated
- 2 November 2026
- Affected
- Amlogic · Nexbox · A95X · Amlogic Android SDK
- Assigner
- VulnCheck
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
At the source
References
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