Security researchers on Tuesday issued a warning for multiple vulnerabilities in the open-source CVS, a popular program that allows developers to keep track of different development versions of source code.
The most serious of the flaws could allow a remote compromise of unpatched servers, the open-source Concurrent Versions System Project confirmed in an advisory .
The flaws range from buffer overflows and memory leaks that could lead to code execution and denial-of-service attacks.
Security alerts aggregator Secunia has slapped a "moderately critical" rating on the vulnerabilities and recommended that users upgrade to version 1.11.20  immediately.
CVS, also known as the Concurrent Versioning System, implements a version control system that keeps track of all work and changes in the implementation of a software project.
The system is commonly used as a collaboration tool among open-source developers, and the discovery of security flaws could cause serious problems if an attacker embeds malicious code in software revisions and patches.
The CVS Project described the buffer overflow as "potentially serious" but said it may not be exploitable.
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