CVE-2026-1579

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-31. 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: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

The MAVLink communication protocol does not require cryptographic authentication by default. When MAVLink 2.0 message signing is not enabled, any message -- including SERIAL_CONTROL, which provides interactive shell access -- can be sent by an unauthenticated party with access to the MAVLink interface. PX4 provides MAVLink 2.0 message signing as the cryptographic authentication mechanism for all MAVLink communication. When signing is enabled, unsigned messages are rejected at the protocol level.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
59%
KEV
Not listed

Published

March 31, 2026

Last Modified

July 29, 2026

Advisory Details (4)

Auto-updated Sep 16, 2026
Patch available. Sources: cisa.
cisa Patch Available

PX4 Autopilot | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-090-02
generic

CSAF/csaf_files/OT/white/2026/icsa-26-090-02.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-090-02.json
generic

MAVLink Security Hardening for Production Deployments | PX4 Guide (main)

https://docs.px4.io/main/en/mavlink/security_hardening
generic

MAVLink Message Signing | PX4 Guide (main)

https://docs.px4.io/main/en/mavlink/message_signing

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 3× 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 225 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-1579?
CVE-2026-1579 is a critical vulnerability published on March 31, 2026. The MAVLink communication protocol does not require cryptographic authentication by default. When MAVLink 2.0 message signing is not enabled, any message -- including SERIAL_CONTROL, which provides interactive shell access -- can be sent by an unauthenticated party with access to the MAVLink…
When was CVE-2026-1579 disclosed?
CVE-2026-1579 was first published in the National Vulnerability Database on March 31, 2026, with the most recent update on July 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1579 actively exploited?
CVE-2026-1579 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 41.1% of all scored CVEs.
What is the CVSS score of CVE-2026-1579?
CVE-2026-1579 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-1579?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1579, 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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