CVE-2019-25318
Published: 12 February 2026
Summary
CVE-2019-25318 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Avs4You (inferred from references). Its CVSS base score is 8.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 20.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Deeper analysis
CVE-2019-25318 is a stack overflow vulnerability (CWE-121) in AVS Audio Converter version 9.1.2.600. The flaw resides in the output folder text input field, where insufficient bounds checking allows attackers to overwrite stack memory and execute arbitrary code. It has a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), indicating high severity due to network accessibility, low attack complexity, and significant impacts on confidentiality, integrity, and availability.
A remote attacker can exploit this vulnerability by crafting a malicious payload and tricking a user into entering it into the output folder text input. Exploitation occurs when the victim clicks the 'Browse' button, triggering the stack overflow that overwrites memory and can establish a bind shell on TCP port 9999. No privileges are required, but user interaction is necessary, such as running the affected software and engaging with the vulnerable interface.
Advisories and references include the vendor site at http://www.avs4you.com/, Exploit-DB proof-of-concept exploits at https://www.exploit-db.com/exploits/47788 and https://www.exploit-db.com/exploits/47810, and a Vulncheck advisory at https://www.vulncheck.com/advisories/avs-audio-converter-stack-overflow detailing the stack overflow issue. No specific patches or mitigations are described in the available information.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2019-19564
Vulnerability details
AVS Audio Converter 9.1.2.600 contains a stack overflow vulnerability that allows attackers to execute arbitrary code by manipulating the output folder text input. Attackers can craft a malicious payload that overwrites stack memory and triggers a bind shell on port…
more
9999 when the 'Browse' button is clicked.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stack overflow enables client-side arbitrary code execution (T1203) requiring user interaction to trigger malicious input (T1204).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Requires validation of inputs like the output folder text field to enforce bounds checking and prevent stack overflows from malicious payloads.
Implements memory safeguards such as stack canaries, ASLR, and DEP to block arbitrary code execution from stack memory overwrites.
Mandates identification, reporting, and remediation of flaws like this stack overflow CVE through patching or removal of the vulnerable AVS Audio Converter.