CVE-2019-25555 in TwistedBrush Pro Studio
Summary
by MITRE • 03/21/2026
TwistedBrush Pro Studio 24.06 contains a denial of service vulnerability in the Script Recorder component that allows local attackers to crash the application by supplying an excessively large buffer. Attackers can paste a malicious string containing 500,000 characters into the Description field of the Script Recorder dialog to trigger an application crash.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 03/27/2026
The vulnerability identified as CVE-2019-25555 resides within TwistedBrush Pro Studio version 24.06, specifically affecting the Script Recorder component. This issue represents a classic buffer overflow condition that manifests as a denial of service attack vector. The flaw occurs when the application processes user input through the Description field of the Script Recorder dialog, where an attacker can supply a malicious string containing 500,000 characters to trigger an application crash. The vulnerability demonstrates characteristics consistent with CWE-121, which describes stack-based buffer overflow conditions, and more broadly aligns with CWE-770, concerning the allocation of resources without proper limits or controls. From an operational security perspective, this vulnerability presents a significant risk to users who may inadvertently encounter malicious content or face targeted attacks that exploit this specific input handling mechanism.
The technical implementation of this vulnerability stems from inadequate input validation and buffer size management within the Script Recorder's processing logic. When the application attempts to handle the excessively large string input, it fails to properly validate the buffer boundaries or implement appropriate size limits for the Description field. This lack of proper input sanitization creates a condition where the application's memory management routines cannot accommodate the massive input, leading to stack corruption and subsequent application termination. The vulnerability operates at the application layer and requires local user interaction, making it a local privilege escalation vector that can be exploited without network connectivity. The specific trigger mechanism involves pasting a 500,000 character string directly into the Description field, which forces the application into an unhandled exception state that results in immediate crash. This behavior aligns with ATT&CK technique T1499.004, which covers network disruption through resource exhaustion, though in this case the resource exhaustion occurs locally within the application's memory space.
The operational impact of this vulnerability extends beyond simple application instability, as it can be leveraged by malicious actors to disrupt workflow processes within creative environments where TwistedBrush Pro Studio is utilized. Users working with complex projects may find their applications crashing unexpectedly, potentially resulting in data loss or significant productivity disruption. The vulnerability affects any system running the affected version of TwistedBrush Pro Studio, making it particularly concerning for organizations that rely on this software for graphic design, digital art creation, or image manipulation tasks. From a security posture perspective, this vulnerability represents a low-barrier attack vector that requires minimal technical expertise to exploit, making it attractive to threat actors seeking to disrupt user productivity or potentially mask more sophisticated attacks. The denial of service condition can be repeatedly triggered, allowing attackers to maintain persistent disruption of the target system's functionality.
Mitigation strategies for CVE-2019-25555 should focus on immediate software patching and input validation enhancements. The primary solution involves applying the vendor-provided security update that addresses the buffer handling issue in the Script Recorder component. Organizations should implement input length restrictions for all user-facing text fields, particularly those that process potentially untrusted data. The implementation of proper bounds checking and memory allocation controls within the application's input handling routines would prevent similar vulnerabilities from occurring in the future. Additionally, system administrators should consider implementing application whitelisting policies that limit the execution of potentially vulnerable software in enterprise environments. Security monitoring should include detection of unusual input patterns that might indicate attempts to exploit this vulnerability. The vulnerability also highlights the importance of regular security assessments and code reviews focusing on input validation mechanisms. Organizations should consider implementing automated testing procedures that validate buffer handling capabilities and ensure that applications can gracefully handle inputs that exceed normal operational parameters without crashing or terminating unexpectedly.