SOUND4 LinkAndShare Transmitter 1.1.2 Environment Variable format string
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.2 | $0-$5k | 0.00 |
Summary
A vulnerability was found in SOUND4 LinkAndShare Transmitter 1.1.2. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component Environment Variable Handler. The manipulation leads to format string. This vulnerability is traded as CVE-2023-53966. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.
Details
A vulnerability, which was classified as critical, has been found in SOUND4 LinkAndShare Transmitter 1.1.2. This issue affects an unknown function of the component Environment Variable Handler. The manipulation with an unknown input leads to a format string vulnerability. Using CWE to declare the problem leads to CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
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.
The weakness was shared by Gjoko Krstic as 51259. It is possible to read the advisory at exploit-db.com. The identification of this vulnerability is CVE-2023-53966 since 12/19/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.
The exploit is available at exploit-db.com. It is declared as proof-of-concept.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the databases at Exploit-DB (51259) and EUVD (EUVD-2023-60228). Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.2
VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 9.8
CNA Vector (VulnCheck): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Format stringCWE: CWE-134 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Exploit-DB: 🔒
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
12/19/2025 CVE reserved12/22/2025 Advisory disclosed
12/22/2025 VulDB entry created
12/23/2025 VulDB entry last update
Sources
Advisory: 51259Researcher: Gjoko Krstic
Status: Not defined
CVE: CVE-2023-53966 (🔒)
GCVE (CVE): GCVE-0-2023-53966
GCVE (VulDB): GCVE-100-337799
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 12/22/2025 23:44Updated: 12/23/2025 00:39
Changes: 12/22/2025 23:44 (80), 12/23/2025 00:39 (1)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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