CVE-2017-17405

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 74% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: epss, ghsa, nvd
Elevated
9.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 74%
CISA-KEV: Not listedEPSS PROB: 74%CVSS: 8.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution.

CVSS v3
8.8
EG Score
9.0CRITICALhigh confidence
EG Risk
75
EG Risk 75/100CISA 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
Severity90% × 45%
Exploitation74% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or 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
74%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or 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 public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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

December 15, 2017

Last Modified

June 17, 2026

Advisory Details (10)

Auto-updated May 22, 2026
Patch available. Sources: redhat.
genericMentions a patch (unverified)

[SECURITY] [DLA 1421-1] ruby2.1 security update

https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
genericMentions a patch (unverified)

[SECURITY] [DLA 1221-1] ruby1.9.1 security update

https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html
genericMentions a patch (unverified)

[SECURITY] [DLA 1222-1] ruby1.8 security update

https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 7.3 Advanced Update Support, Red Hat Enterprise Linux 7.3 Telco Extended Update Support, and Red Hat

https://access.redhat.com/errata/RHSA-2019:2806
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2018:0585
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2018:0584
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2018:0583
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 7.

https://access.redhat.com/errata/RHSA-2018:0378
generic
http://www.securitytracker.com/id/1042004
generic
http://www.securityfocus.com/bid/102204

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubunturuby2.3 (2.3.3-1ubuntu1.1) @ artful2026-05-22ubuntu
redhatruby-0:2.0.0.648-30.el7_32019-09-19redhat
redhatrh-ruby23-ruby-0:2.3.6-67.el72018-03-26redhat
redhatrh-ruby22-ruby-0:2.2.9-19.el72018-03-26redhat
redhatrh-ruby24-ruby-0:2.4.3-90.el72018-03-26redhat
redhatruby-0:2.0.0.648-33.el7_42018-02-28redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(26 across 25 ecosystems)
Debian:7(2)
PackageVulnerable rangeFix by version rangeDependents
ruby1.81.8.7.358-7 ... 1.8.7.358-7.1+deb7u4 (6 versions)
  • every version up to 1.8.7.358-7.1+deb7u5: fixed in 1.8.7.358-7.1+deb7u5
—
ruby1.9.11.9.3.194-8.1 ... 1.9.3.194-8.1+deb7u6 (6 versions)
  • every version up to 1.9.3.194-8.1+deb7u7: fixed in 1.9.3.194-8.1+deb7u7
—
Alpine:v3.10(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.11(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.12(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.13(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.14(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.15(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.16(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.3(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.2.9-r0: fixed in 2.2.9-r0
—
Alpine:v3.4(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.3.6-r0: fixed in 2.3.6-r0
—
Alpine:v3.5(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.3.6-r0: fixed in 2.3.6-r0
—
Alpine:v3.6(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.7(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.8(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Alpine:v3.9(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • 2.2 up to 2.4.3-r0: fixed in 2.4.3-r0
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
ruby2.12.1.5-2, 2.1.5-2+deb8u1, 2.1.5-2+deb8u2, 2.1.5-2+deb8u3
  • every version up to 2.1.5-2+deb8u4: fixed in 2.1.5-2+deb8u4
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
ruby2.32.3.3-1, 2.3.3-1+deb9u1, 2.3.3-1+deb9u2
  • every version up to 2.3.3-1+deb9u3: fixed in 2.3.3-1+deb9u3
—

Weakness Classification(1)

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

All Vendor Advisories

(6)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 4× in last 7d / 15× 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.

  1. 2026-10-09 20:02 UTCEPSS rescore
  2. 2026-10-07 23:41 UTCEPSS rescore
  3. 2026-10-07 20:24 UTCOSV refresh
  4. 2026-10-06 15:11 UTCEPSS rescore
  5. 2026-10-03 14:21 UTCEPSS rescore
  6. 2026-09-30 09:30 UTCEG score recompute
  7. 2026-09-26 15:53 UTCEPSS rescore
  8. 2026-09-24 13:59 UTCEPSS rescore
  9. 2026-09-19 15:36 UTCEPSS rescore
  10. 2026-09-18 19:22 UTCEPSS rescore
  11. 2026-09-18 02:20 UTCOSV refresh
  12. 2026-09-17 19:22 UTCEPSS rescore
  13. 2026-09-15 03:05 UTCEPSS rescore
  14. 2026-09-13 16:42 UTCEPSS rescore
  15. 2026-09-12 14:55 UTCEPSS rescore
  16. 2026-09-10 09:26 UTCEPSS rescore
  17. 2026-09-04 13:56 UTCEPSS rescore
  18. 2026-09-01 13:48 UTCEPSS rescore
  19. 2026-08-30 19:13 UTCEPSS rescore
  20. 2026-08-30 03:18 UTCOSV refresh
  21. 2026-08-28 21:36 UTCEPSS rescore
  22. 2026-08-26 14:41 UTCEPSS rescore
  23. 2026-08-25 13:44 UTCEPSS rescore
  24. 2026-08-24 14:10 UTCEPSS rescore
  25. 2026-08-21 23:44 UTCEPSS rescore
Show 75 more
  1. 2026-08-20 22:50 UTCEPSS rescore
  2. 2026-08-19 16:59 UTCEPSS rescore
  3. 2026-08-16 02:10 UTCEPSS rescore
  4. 2026-08-15 01:26 UTCEPSS rescore
  5. 2026-08-13 21:56 UTCEPSS rescore
  6. 2026-08-13 14:51 UTCOSV refresh
  7. 2026-08-08 16:32 UTCEPSS rescore
  8. 2026-08-06 13:42 UTCEPSS rescore
  9. 2026-08-05 19:12 UTCEPSS rescore
  10. 2026-08-02 02:23 UTCEPSS rescore
  11. 2026-07-30 16:24 UTCEPSS rescore
  12. 2026-07-30 01:26 UTCEPSS rescore
  13. 2026-07-28 21:21 UTCOSV refresh
  14. 2026-07-28 15:32 UTCEPSS rescore
  15. 2026-07-25 14:13 UTCEPSS rescore
  16. 2026-07-23 14:15 UTCEPSS rescore
  17. 2026-07-23 01:28 UTCEG score recompute▲ 0.20
  18. 2026-07-22 22:07 UTCEG score recompute▼ 0.20
  19. 2026-07-22 14:04 UTCEPSS rescore
  20. 2026-07-20 17:04 UTCEPSS rescore
  21. 2026-07-20 17:04 UTCEPSS rescore
  22. 2026-07-19 14:28 UTCEPSS rescore
  23. 2026-07-19 14:28 UTCEPSS rescore
  24. 2026-07-19 02:26 UTCEPSS rescore
  25. 2026-07-19 02:26 UTCEPSS rescore
  26. 2026-07-18 10:00 UTCEPSS rescore
  27. 2026-07-16 16:59 UTCEPSS rescore
  28. 2026-07-16 16:59 UTCEPSS rescore
  29. 2026-07-15 16:54 UTCEPSS rescore
  30. 2026-07-15 16:54 UTCEPSS rescore
  31. 2026-07-13 22:26 UTCEPSS rescore
  32. 2026-07-13 06:09 UTCEPSS rescore
  33. 2026-07-11 13:52 UTCOSV refresh
  34. 2026-07-11 08:24 UTCEPSS rescore
  35. 2026-07-06 02:20 UTCEPSS rescore
  36. 2026-07-01 15:02 UTCEPSS rescore
  37. 2026-07-01 15:02 UTCEPSS rescore
  38. 2026-06-30 23:19 UTCEPSS rescore
  39. 2026-06-30 23:19 UTCEPSS rescore
  40. 2026-06-29 14:03 UTCEPSS rescore
  41. 2026-06-28 04:53 UTCEPSS rescore
  42. 2026-06-25 13:47 UTCEPSS rescore
  43. 2026-06-25 13:47 UTCEPSS rescore
  44. 2026-06-24 14:02 UTCEPSS rescore
  45. 2026-06-23 21:30 UTCEPSS rescore
  46. 2026-06-22 20:35 UTCOSV refresh
  47. 2026-06-21 14:54 UTCEPSS rescore
  48. 2026-06-21 14:54 UTCEPSS rescore
  49. 2026-06-18 17:50 UTCEPSS rescore
  50. 2026-06-17 17:50 UTCEPSS rescore
  51. 2026-06-15 17:45 UTCEPSS rescore
  52. 2026-06-13 22:57 UTCEPSS rescore
  53. 2026-06-12 23:09 UTCEPSS rescore
  54. 2026-06-11 13:57 UTCEPSS rescore
  55. 2026-06-10 22:15 UTCEPSS rescore
  56. 2026-06-07 15:22 UTCEPSS rescore
  57. 2026-06-07 15:22 UTCEPSS rescore
  58. 2026-06-05 22:44 UTCEPSS rescore
  59. 2026-06-05 10:57 UTCOSV refresh
  60. 2026-06-01 13:49 UTCEPSS rescore
  61. 2026-06-01 13:49 UTCEPSS rescore
  62. 2026-05-28 13:42 UTCEPSS rescore
  63. 2026-05-28 13:42 UTCEPSS rescore
  64. 2026-05-26 07:17 UTCEPSS rescore
  65. 2026-05-26 07:17 UTCEPSS rescore
  66. 2026-05-22 21:15 UTCEPSS rescore
  67. 2026-05-22 21:15 UTCEPSS rescore
  68. 2026-05-22 21:15 UTCEPSS rescore
  69. 2026-05-22 07:13 UTCEG score recompute
  70. 2026-05-22 07:13 UTCVendor advisory
  71. 2026-05-22 07:12 UTCGHSA enrichment
  72. 2026-05-20 22:37 UTCEPSS rescore
  73. 2026-05-20 22:37 UTCEPSS rescore
  74. 2026-05-18 21:30 UTCEPSS rescore
  75. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-43381
    First seen Dec 2, 2017

    Ruby < 2.2.8 / < 2.3.5 / < 2.4.2 / < 2.5.0-preview1 - 'NET::Ftp' Command Injection

    Open source ↗

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2017-17405?
CVE-2017-17405 is a critical vulnerability published on December 15, 2017. Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default…
When was CVE-2017-17405 disclosed?
CVE-2017-17405 was first published on December 15, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-17405 actively exploited?
CVE-2017-17405 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 74% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-17405?
CVE-2017-17405 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
How do I remediate CVE-2017-17405?
A fix for CVE-2017-17405 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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