CVE-2017-20005

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3.3%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
60
EG Risk 60/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation3% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
3.3%
EPSS %ILE
88th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 6, 2021

Last Modified

December 5, 2025

Advisory Details (6)

Auto-updated Oct 9, 2026
Patch available. Sources: github_commit.
genericMentions a patch (unverified)

[SECURITY] [DLA 2680-1] nginx security update

https://lists.debian.org/debian-lts-announce/2021/06/msg00009.html
github_commit

commit b900cc28fcbb (nginx/nginx)

Fix landed in nginx/nginx commit b900cc28fcbb — awaiting tagged release

https://github.com/nginx/nginx/commit/b900cc28fcbb4cf5a32ab62f80b59292e1c85b4b
github_commit

commit 0206ebe76f74 (nginx/nginx)

Fix landed in nginx/nginx commit 0206ebe76f74 — awaiting tagged release

https://github.com/nginx/nginx/commit/0206ebe76f748bb39d9de4dd4b3fce777fdfdccf
generic
http://nginx.org/en/CHANGES
generic

#1368 (Date oveflow problems with ngx_gmtime()) – nginx

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

NetApp Product Security

https://security.netapp.com/advisory/ntap-20210805-0006/

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
nginx—
  • every version up to 1.13.6-1: fixed in 1.13.6-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
nginx—
  • every version up to 1.13.6-1: fixed in 1.13.6-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
nginx—
  • every version up to 1.13.6-1: fixed in 1.13.6-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
nginx—
  • every version up to 1.13.6-1: fixed in 1.13.6-1
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
nginx1.10.3-1 ... 1.10.3-1+deb9u6 (9 versions)
  • every version up to 1.10.3-1+deb9u7: fixed in 1.10.3-1+deb9u7
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 142 total refreshes for this CVE.

  1. 2026-10-10 19:55 UTCEPSS rescore
  2. 2026-10-09 20:02 UTCEPSS rescore
  3. 2026-10-08 16:36 UTCEPSS rescore
  4. 2026-10-07 23:41 UTCEPSS rescore
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  8. 2026-10-03 14:21 UTCEPSS rescore
  9. 2026-09-30 14:59 UTCEPSS rescore
  10. 2026-09-30 09:31 UTCEG score recompute
  11. 2026-09-28 13:45 UTCEPSS rescore
  12. 2026-09-27 13:40 UTCEPSS rescore
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  14. 2026-09-26 15:53 UTCEPSS rescore
  15. 2026-09-26 01:15 UTCOSV refresh
  16. 2026-09-24 13:59 UTCEPSS rescore
  17. 2026-09-18 19:22 UTCEPSS rescore
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  21. 2026-09-13 16:42 UTCEPSS rescore
  22. 2026-09-12 14:55 UTCEPSS rescore
  23. 2026-09-11 09:31 UTCEPSS rescore
  24. 2026-09-07 15:56 UTCEPSS rescore
  25. 2026-09-06 16:01 UTCOSV refresh
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  1. 2026-09-06 13:43 UTCEPSS rescore
  2. 2026-09-05 15:23 UTCEPSS rescore
  3. 2026-09-04 13:56 UTCEPSS rescore
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  6. 2026-09-01 03:31 UTCEPSS rescore
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  11. 2026-08-21 23:44 UTCEPSS rescore
  12. 2026-08-20 22:51 UTCEPSS rescore
  13. 2026-08-20 02:04 UTCOSV refresh
  14. 2026-08-19 16:59 UTCEPSS rescore
  15. 2026-08-18 13:43 UTCEPSS rescore
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  17. 2026-08-16 14:51 UTCEPSS rescore
  18. 2026-08-16 02:10 UTCEPSS rescore
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  20. 2026-08-12 13:46 UTCEPSS rescore
  21. 2026-08-07 16:22 UTCEPSS rescore
  22. 2026-08-06 13:42 UTCEPSS rescore
  23. 2026-08-05 19:12 UTCEPSS rescore
  24. 2026-08-04 20:57 UTCOSV refresh
  25. 2026-08-04 15:05 UTCEPSS rescore
  26. 2026-08-02 02:23 UTCEPSS rescore
  27. 2026-08-01 04:11 UTCEPSS rescore
  28. 2026-07-30 16:24 UTCEPSS rescore
  29. 2026-07-30 01:26 UTCEPSS rescore
  30. 2026-07-28 15:32 UTCEPSS rescore
  31. 2026-07-23 14:15 UTCEPSS rescore
  32. 2026-07-23 01:28 UTCEG score recompute
  33. 2026-07-22 22:08 UTCEG score recompute
  34. 2026-07-22 14:04 UTCEPSS rescore
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  36. 2026-07-21 15:21 UTCEPSS rescore
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  38. 2026-07-20 17:04 UTCEPSS rescore
  39. 2026-07-19 14:28 UTCEPSS rescore
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  41. 2026-07-19 02:26 UTCEPSS rescore
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  43. 2026-07-18 19:29 UTCOSV refresh
  44. 2026-07-18 10:00 UTCEPSS rescore
  45. 2026-07-16 16:59 UTCEPSS rescore
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  47. 2026-07-15 16:54 UTCEPSS rescore
  48. 2026-07-15 01:56 UTCEPSS rescore
  49. 2026-07-15 01:56 UTCEPSS rescore
  50. 2026-07-13 22:26 UTCEPSS rescore
  51. 2026-07-12 05:43 UTCEPSS rescore
  52. 2026-07-11 08:24 UTCEPSS rescore
  53. 2026-07-09 19:06 UTCEPSS rescore
  54. 2026-07-08 15:10 UTCEPSS rescore
  55. 2026-07-07 13:42 UTCEPSS rescore
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  63. 2026-07-01 15:02 UTCEPSS rescore
  64. 2026-07-01 02:18 UTCOSV refresh
  65. 2026-06-30 23:19 UTCEPSS rescore
  66. 2026-06-30 23:19 UTCEPSS rescore
  67. 2026-06-28 14:04 UTCEPSS rescore
  68. 2026-06-28 04:53 UTCEPSS rescore
  69. 2026-06-27 03:06 UTCEPSS rescore
  70. 2026-06-27 03:05 UTCEPSS rescore
  71. 2026-06-25 13:47 UTCEPSS rescore
  72. 2026-06-24 14:02 UTCEPSS rescore
  73. 2026-06-24 14:02 UTCEPSS rescore
  74. 2026-06-23 21:30 UTCEPSS rescore
  75. 2026-06-22 14:23 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2017-20005?
CVE-2017-20005 is a critical vulnerability published on June 6, 2021. 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.
When was CVE-2017-20005 disclosed?
CVE-2017-20005 was first published on June 6, 2021, with the most recent update on December 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-20005 actively exploited?
CVE-2017-20005 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.3% probability of exploitation in the next 30 days (88th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-20005?
CVE-2017-20005 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-20005?
A fix for CVE-2017-20005 is available: update to the fixed version the vendor names in its advisory.

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