Vulnerability · Published Dec 22, 2025 · Assigned by VulnCheck
CVE-2023-53966SOUND4 LinkAndShare Transmitter 1.1.2 Format String Stack Buffer Overflow
Critical 9.8
In plain English
A critical-severity security flaw in SOUND4 LinkAndShare Transmitter from SOUND4 Ltd.. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 45.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
SOUND4 LinkAndShare Transmitter 1.1.2 contains a format string vulnerability that allows attackers to trigger memory stack overflows through maliciously crafted environment variables. Attackers can manipulate the username environment variable with format string payloads to potentially execute arbitrary code and crash the application.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SOUND4 Ltd. | SOUND4 LinkAndShare Transmitter | 1.1.2 |
Weakness: CWE-134 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-51259 exploit
- SOUND4 Official Product Homepage product
- Zero Science Lab Disclosure (ZSL-2022-5744) third-party-advisory
- VulnCheck Advisory: SOUND4 LinkAndShare Transmitter 1.1.2 Format String Stack Buffer Overflow third-party-advisory