CVE-2017-20005

Name: CVE-2017-20005
Creator: NVD / NIST
Published: 2021-06-06T22:15:08.417+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.28%

Last modified Jun 17, 2026

CVE-2017-20005 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. NGINX before 1.13.6 has a buffer overflow for years that exceed four digits, as demonstrated by a file with a modification date in 1969 that causes an integer overflow (or a false modification date far in the future), when encountered by the autoindex module.. EPSS estimates a 3.28% chance of exploitation in the next 30 days.

Description

NGINX before 1.13.6 has a buffer overflow for years that exceed four digits, as demonstrated by a file with a modification date in 1969 that causes an integer overflow (or a false modification date far in the future), when encountered by the autoindex module.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.28%

86.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
F5	Nginx	< 1.13.6
Debian	Debian Linux	9.0

References

http://nginx.org/en/CHANGESRelease Notes, Vendor Advisory
https://github.com/nginx/nginx/commit/0206ebe76f748bb39d9de4dd4b3fce777fdfdccfPatch, Third Party Advisory
https://github.com/nginx/nginx/commit/b900cc28fcbb4cf5a32ab62f80b59292e1c85b4bPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00009.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20210805-0006/Third Party Advisory
https://trac.nginx.org/nginx/ticket/1368Exploit, Patch, Vendor Advisory
http://nginx.org/en/CHANGESRelease Notes, Vendor Advisory
https://github.com/nginx/nginx/commit/0206ebe76f748bb39d9de4dd4b3fce777fdfdccfPatch, Third Party Advisory
https://github.com/nginx/nginx/commit/b900cc28fcbb4cf5a32ab62f80b59292e1c85b4bPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00009.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20210805-0006/Third Party Advisory
https://trac.nginx.org/nginx/ticket/1368Exploit, Patch, Vendor Advisory

Timeline

Published: Jun 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-20005?

How severe is CVE-2017-20005?

CVE-2017-20005 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.28% probability of exploitation in the next 30 days.

How do I fix CVE-2017-20005?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-20005?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST