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 90.4% of all 322,079 vulnerabilities in our database.

#30,811

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

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CVE-2026-31431	⚠️ high	7.8	2.4	In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-pla...	2026-04-22
CVE-2026-4775	⚠️ high	7.8	0.0	A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the ...	2026-03-24
CVE-2026-1940	🔶 medium	5.1	0.0	An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added...	2026-03-23
CVE-2025-63261	⚠️ high	7.8	0.1	AWStats 8.0 is vulnerable to Command Injection via the open function	2026-03-20
CVE-2026-25506	⚠️ high	7.7	0.0	MUNGE is an authentication service for creating and validating user credentials. From 0.5 to 0.5.17, local attacker can ...	2026-02-10
CVE-2025-62599	⚠️ high	8.6	0.0	eprosima Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management ...	2026-02-03

These CVEs affect the same products