Arbitrary code execution via oversized configuration value
Published Mar 28, 2026 · Updated Mar 28, 2026
Stack-based buffer overflow in SIPp 3.3 allows local users to execute arbitrary code by supplying an oversized value in a configuration file. The configuration parser accepts a crafted value without sufficient bounds checking, allowing a stack buffer and its return address to be overwritten. Exploitation requires local control of input processed by SIPp and runs code in its process context; the public Linux exploit uses a ROP chain to launch a shell.
Summary
What happened
Stack-based buffer overflow in SIPp 3.3 allows local users to execute arbitrary code by supplying an oversized value in a configuration file. The configuration parser accepts a crafted value without sufficient bounds checking, allowing a stack buffer and its return address to be overwritten. Exploitation requires local control of input processed by SIPp and runs code in its process context; the public Linux exploit uses a ROP chain to launch a shell.
The record
- CVE
- CVE-2018-25225
- Published
- Mar 28, 2026
- Updated
- Mar 28, 2026
- Vendor
- SIPp
- Product
- SIPp
- Classifications
- CWE-306
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 28, 2026CVE publishedPublication date reported by the CVE source.
- Mar 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=3.3
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- SIPP 3.3 - Stack-Based Buffer Overflowfunctional · demonstrated
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Technologies
Your stack
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Your stack
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