CVE-2020-1956

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 3 sources updated this weekExploited in the wild
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 97%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Apache Kylin 2.3.0, and releases up to 2.6.5 and 3.0.1 has some restful apis which will concatenate os command with the user input string, a user is likely to be able to execute any os command without any protection or validation.

CVSS v3
8.8
EG Score
9.0(high)
EPSS
99.9%
KEV
⚠ Exploited

Published

May 22, 2020

Last Modified

October 23, 2025

Advisory Details (8)

Auto-updated Jun 2, 2026
No patch confirmed yet.
generic

[Tech Story] Apache Kylin 3.0.1 Command Injection Vulnerability - Sonar Updates - Sonar Community

https://community.sonarsource.com/t/apache-kylin-3-0-1-command-injection-vulnerability/25706
generic

oss-security - [SECURITY][CVE-2020-13925] Apache Kylin command injection vulnerability

http://www.openwall.com/lists/oss-security/2020/07/14/1
generic
https://lists.apache.org/thread.html/r61666760d8a4e8764b2d5fe158d8a48b569414480fbfadede574cdc0%40%3Ccommits.kylin.apache.org%3E
generic
https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cuser.kylin.apache.org%3E
generic
https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cdev.kylin.apache.org%3E
generic
https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cannounce.apache.org%3E
generic
https://lists.apache.org/thread.html/r1332ef34cf8e2c0589cf44ad269fb1fb4c06addec6297f0320f5111d%40%3Cuser.kylin.apache.org%3E
generic
https://lists.apache.org/thread.html/r021baf9d8d4ae41e8c8332c167c4fa96c91b5086563d9be55d2d7acf%40%3Ccommits.kylin.apache.org%3E

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.apache.kylin:kylin-core-common3.0.0, 3.0.13.0.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 47× in last 7d / 200× 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 301 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

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

  • Nucleihttp/cves/2020/CVE-2020-1956.yaml
    First seen Jan 1, 2020

    Apache Kylin 3.0.1 - Command Injection Vulnerability

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2020-1956?
CVE-2020-1956 is a high vulnerability published on May 22, 2020. Apache Kylin 2.3.0, and releases up to 2.6.5 and 3.0.1 has some restful apis which will concatenate os command with the user input string, a user is likely to be able to execute any os command without any protection or validation.
When was CVE-2020-1956 disclosed?
CVE-2020-1956 was first published in the National Vulnerability Database on May 22, 2020, with the most recent update on October 23, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-1956 actively exploited?
Yes. CISA added CVE-2020-1956 to the Known Exploited Vulnerabilities catalog on March 25, 2022, affecting Apache Kylin. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-1956?
CVE-2020-1956 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.
Which products are affected by CVE-2020-1956?
CVE-2020-1956 affects Apache Kylin. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2020-1956?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-1956, 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-2020-1956

Explore →

Is Your Infrastructure Affected by CVE-2020-1956?

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

Start Free Scan →Browse All CVEs