CVE-2019-3464

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: Track

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%
Exploitation5% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
5%
EPSS %ILE
91%
KEV
Not listed

Published

February 6, 2019

Last Modified

November 21, 2024

Advisory Details (9)

Auto-updated Jul 3, 2026
🔬 Proof of concept available. Patch available.
generic

[SECURITY] [DSA 4382-1] rssh security update

https://www.debian.org/security/2019/dsa-4382
generic

Debian Package Tracker

https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/
generic

rssh: Multiple vulnerabilities (GLSA 202007-29) — Gentoo security

https://security.gentoo.org/glsa/202007-29
generic

[SECURITY] Fedora 30 Update: rssh-2.3.4-15.fc30 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T42YYNWJZG422GATWAHAEK4A24OKY557/
generic

[SECURITY] Fedora 29 Update: rssh-2.3.4-15.fc29 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KR2OHTHMJVV4DO3HDRFQQZ5JENHDJQEN/
generic

[SECURITY] Fedora 31 Update: rssh-2.3.4-15.fc31 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HO3MDU3AH5SLYBKHH5PJ6PHC63ASIF42/
generic Patch Available

[SECURITY] [DLA 1660-1] rssh security update

https://lists.debian.org/debian-lts-announce/2019/02/msg00007.html
generic
http://www.securityfocus.com/bid/106839
generic🟡 PoC Available

Full Disclosure: KL-001-2021-007: CommScope Ruckus IoT Controller Undocumented Account

http://seclists.org/fulldisclosure/2021/May/78

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubunturssh (2.3.4-4+deb8u2ubuntu0.16.04.2) @ xenial2026-05-27ubuntu

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.

Weakness Classification(1)

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

All Vendor Advisories

(1)

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 10× in last 7d / 44× 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 104 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2019-3464?
CVE-2019-3464 is a critical vulnerability published on February 6, 2019. Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.
When was CVE-2019-3464 disclosed?
CVE-2019-3464 was first published in the National Vulnerability Database on February 6, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-3464 actively exploited?
CVE-2019-3464 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 9.1% of all scored CVEs.
What is the CVSS score of CVE-2019-3464?
CVE-2019-3464 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-3464?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-3464, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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