What is CVE-2013-4743?

CVE-2013-4743 is a critical-severity vulnerability in Static HTTP Server Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2019-12-27.

How severe is CVE-2013-4743?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Static HTTP Server Project

CVE-2013-4743

Static HTTP Server 1.0 has a Local Overflow

Vulnerability class: Buffer Overflow

Published 2019-12-27 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.084 (94.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.084 · newest: 0.084 · change: 0.000

Affected products

Static HTTP Server Project — versions 1.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

www.exploit-db.com/exploits/26520 (Exploit, VDB Entry, Third Party Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/85417 (VDB Entry)

Frequently asked questions

What is CVE-2013-4743?: CVE-2013-4743 is a critical-severity vulnerability in Static HTTP Server Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2019-12-27.
How severe is CVE-2013-4743?: Critical severity. CVSS v3 base score is 9.8 out of 10.