CVE-2016-20037
CVE-2016-20037 is a high-severity vulnerability with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.4)
- CVSS v4: 8.6
- EPSS exploit prediction: 0% (4th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2016-10829
- Weakness: CWE-787
- Published:
- Last modified:
Description
xwpe 1.5.30a-2.1 and prior contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying overly long input strings that exceed buffer boundaries. Attackers can craft malicious command-line arguments with 262 bytes of junk data followed by shellcode to overwrite the instruction pointer and achieve code execution or denial of service.
Frequently asked questions
- What is CVE-2016-20037?
- xwpe 1.5.30a-2.1 and prior contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying overly long input strings that exceed buffer boundaries. Attackers can craft malicious command-line arguments with 262 bytes of junk data followed by shellcode to overwrite the instruction pointer and achieve code execution or denial of service.
- How severe is CVE-2016-20037?
- CVE-2016-20037 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2016-20037 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2016-20037?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2016-20037 have an EU (EUVD) identifier?
- Yes. CVE-2016-20037 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-10829.
- When was CVE-2016-20037 published?
- CVE-2016-20037 was published on 2026-03-28 and last updated on 2026-06-17.
References
- http://www.identicalsoftware.com/xwpe
- https://www.exploit-db.com/exploits/39285
- https://www.vulncheck.com/advisories/xwpe-30a-stack-based-buffer-overflow
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