CVE-2020-15778

HIGHNVD 7.47.8▲
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 7.4; sources differ by 0.4.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 13%CVSS: 7.4Exploit: Elevated riskExposed: 0

A fix is available — apply it.

scp in OpenSSH through 8.3p1 allows command injection in the scp.c toremote function, as demonstrated by backtick characters in the destination argument. NOTE: the vendor reportedly has stated that they intentionally omit validation of "anomalous argument transfers" because that could "stand a great chance of breaking existing workflows."

CVSS v3
7.4
EG Score
7.8(medium)
EG Risk
51(Track*)
EG Risk 51/100SSVC: 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
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
13%
EPSS %ILE
96%
KEV
Not listed

Published

July 24, 2020

Last Modified

July 28, 2025

References (12)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenssh-0:8.0p1-24.el82024-05-22redhat

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

(10 across 10 ecosystems)
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
openssh—8.3_p1-r0—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
openssh—8.3_p1-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
openssh—8.3_p1-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
openssh—8.3_p1-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
openssh—8.3_p1-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
openssh—8.3_p1-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
openssh1:10.0p1-1 ... 1:9.9p2-2 (86 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
openssh1:10.0p1-1 ... 1:9.9p2-2 (77 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
openssh1:10.0p1-7 ... 1:10.5p1-1 (31 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
openssh1:10.0p1-7 ... 1:10.5p1-1 (27 versions)——

Weakness Classification(1)

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

All Vendor Advisories

(2)

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 5× in last 7d / 28× 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 132 total refreshes for this CVE.

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

Publicly available exploits

(4 references)

Working exploit code is in the public domain (4 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCdrackyjr/CVE-2020-15778-SCP-Command-Injection-Check
    First seen Jul 28, 2025

    This script is a safe and simple tool that helps system users, students, and administrators check if their SCP (Secure Copy) client is vulnerable to CVE-2020-15778, a command injection vulnerability in OpenSSH SCP (versions ≤ 8.3p1).

    Open source ↗
  • GitHub PoCyifanzhg/CVE-2020-15778
    First seen Sep 27, 2023
    Open source ↗
  • GitHub PoCNeko-chanQwQ/CVE-2020-15778-Exploit
    First seen Jul 15, 2021

    Exploit for CVE-2020-15778(OpenSSH vul)

    Open source ↗
  • GitHub PoCcpandya2909/CVE-2020-15778
    First seen Jul 18, 2020
    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2020-15778?
CVE-2020-15778 is a high vulnerability published on July 24, 2020. scp in OpenSSH through 8.3p1 allows command injection in the scp.c toremote function, as demonstrated by backtick characters in the destination argument. NOTE: the vendor reportedly has stated that they intentionally omit validation of "anomalous argument transfers" because that could "stand a…
When was CVE-2020-15778 disclosed?
CVE-2020-15778 was first published in the National Vulnerability Database on July 24, 2020, with the most recent update on July 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-15778 actively exploited?
CVE-2020-15778 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13% probability of exploitation in the next 30 days, which ranks it in the top 3.8% of all scored CVEs.
What is the CVSS score of CVE-2020-15778?
CVE-2020-15778 has a CVSS v3 base score of 7.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.8.
How do I remediate CVE-2020-15778?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15778, 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-15778

Explore →

Is Your Infrastructure Affected by CVE-2020-15778?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs