CVE-2023-49899

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-16. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

An unauthenticated remote attacker can execute any command on the affected device due to not correctly verifying the origin of a communication channel.

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%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

July 16, 2026

Last Modified

July 18, 2026

Advisory Details (1)

Auto-updated Sep 5, 2026
No patch confirmed yet.
generic

CVE-2023-49899 | Claroty

https://claroty.com/team82/disclosure-dashboard/cve-2023-49899

Vendor Advisories for CVE-2023-49899(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 144× 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 310 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2023-49899?
CVE-2023-49899 is a critical vulnerability published on July 16, 2026. An unauthenticated remote attacker can execute any command on the affected device due to not correctly verifying the origin of a communication channel.
When was CVE-2023-49899 disclosed?
CVE-2023-49899 was first published in the National Vulnerability Database on July 16, 2026, with the most recent update on July 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-49899 actively exploited?
CVE-2023-49899 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.2% of all scored CVEs.
What is the CVSS score of CVE-2023-49899?
CVE-2023-49899 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-49899?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-49899, 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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