What is CVE-2017-1000471?

CVE-2017-1000471 is a critical-severity vulnerability in Embedthis Goahead, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2018-01-03.

How severe is CVE-2017-1000471?

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

NULL pointer dereference in Embedthis Goahead

CVE-2017-1000471

EmbedThis GoAhead Webserver version 4.0.0 is vulnerable to a NULL pointer dereference in the CGI handler resulting in memory corruption or denial of service.

Published 2018-01-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.086 (94.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.086 · newest: 0.086 · change: 0.000

Affected products

Embedthis Goahead — versions 4.0.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/embedthis/goahead/pull/258 (Third Party Advisory, Issue Tracking)
github.com/embedthis/goahead/commit/5e6be61e42448f503e75e287dc332b1ecbf2a665 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2017-1000471?: CVE-2017-1000471 is a critical-severity vulnerability in Embedthis Goahead, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2018-01-03.
How severe is CVE-2017-1000471?: Critical severity. CVSS v3 base score is 9.8 out of 10.