CVE-2016-20037

xwpe 1.5.30a-2.1 Stack-based Buffer Overflow

CVSS 8.6 HIGHEPSS 0.1%CWE-787

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Proof of concept

Public proof of concept exists, but not yet automated.

CVSS 8.6EPSS 0.1%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

28 Mar 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Identicalsoftware · xWPE

public PoCs found — 1

cve_referencewww.exploit-db.com/exploits/39285unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://www.exploit-db.com/exploits/39285 https://www.vulncheck.com/advisories/xwpe-30a-stack-based-buffer-overflow http://www.identicalsoftware.com/xwpe