CVE-2017-20005

⛔ critical

Summary

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.

CVSS Score

9.8

Critical

EPSS Score

3.3

Exploit Probability

Published Date

2021-06-06

First Seen: 2026-01-05

📊 Relative Risk Intelligence

This CVE is Very High Risk - more severe than 90.6% of all 335,187 vulnerabilities in our database.

#31,628

Top 10% most severe

Severity Percentile

🎯 CISA SSVC Assessment Updated: Dec 4, 2025

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

YES

Can be exploited automatically

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2025-12-05

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-190 CWE-120

📦 Affected Products 2

Vendor	Product	Status	Affected Versions
debian	debian_linux	Affected	v9.0
f5	nginx	Affected	< 1.13.6

🔗 References 6

http://nginx.org/en/CHANGES

Release Notes Vendor Advisory

https://github.com/nginx/nginx/commit/0206ebe76f748b...

Patch Third Party Advisory

https://github.com/nginx/nginx/commit/b900cc28fcbb4c...

Patch Third Party Advisory

https://lists.debian.org/debian-lts-announce/2021/06...

Mailing List Third Party Advisory

https://security.netapp.com/advisory/ntap-20210805-0...

Third Party Advisory

https://trac.nginx.org/nginx/ticket/1368

Exploit Patch Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-14355	🔶 medium	5.6	0.3	In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRAP-PAD algo...	2026-07-03
CVE-2026-56968	ℹ️ low	3.7	0.2	GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could...	2026-06-23
CVE-2026-49975	⚠️ high	7.5	11.5	Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service vi...	2026-06-08
CVE-2026-46333	⚠️ high	7.1	1.4	In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The ...	2026-05-15
CVE-2026-31431	⚠️ high	7.8	96.3	In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-pla...	2026-04-22
CVE-2026-41082	⚠️ high	7.3	0.2	In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.	2026-04-16

These CVEs affect the same products