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high advisory

doslib Memory Buffer Overflow Vulnerability (CVE-2026-33851)

An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in joncampbell123's doslib before version doslib-20250729, potentially leading to arbitrary code execution.

CVE-2026-33851 describes a memory buffer overflow vulnerability within the doslib library developed by joncampbell123. This vulnerability exists in versions of doslib prior to doslib-20250729. The vulnerability is due to improper restriction of operations within the bounds of a memory buffer, a classic coding error that can lead to exploitable conditions. While specific exploitation details are not provided in the source, the nature of the vulnerability (CWE-119) indicates the potential for…

Detection coverage 2

Potential doslib Buffer Overflow Attempt

medium

Detects potential exploitation attempts of doslib buffer overflow vulnerabilities by monitoring for suspicious process arguments or behaviors.

sigma tactics: execution techniques: T1204.002 sources: process_creation, linux

Suspicious File Creation in doslib related directories

low

Detects suspicious file creation events in directories commonly associated with doslib applications, which could indicate malicious activity following a buffer overflow.

sigma tactics: persistence techniques: T1105 sources: file_event, linux

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