CVE-2026-51599

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-09. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
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: Elevated riskExposed: 0

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

An insufficient input validation vulnerability in the RTSP service of MERCURY MIPC252W v1.0.5 Build 230306 Rel.79931n allows an unauthenticated remote attacker to render an individual TCP connection temporarily unusable via sending an RTSP request with a Content-Length header but no corresponding message body. The affected RTSP parser enters a body-waiting state instead of rejecting the malformed request, causing all subsequent data on the connection to be silently consumed as body content until a server-side timeout closes the connection.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
48%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 10, 2026

Advisory Details (1)

Auto-updated Aug 29, 2026
No patch confirmed yet.
generic

cve_ID_report/MERCURY_MIPC252W/MERCURY_MIPC252W_7th/README.md at main · kkkk2222874/cve_ID_report · GitHub

https://github.com/kkkk2222874/cve_ID_report/blob/main/MERCURY_MIPC252W/MERCURY_MIPC252W_7th/README.md

Vendor Advisories for CVE-2026-51599(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 30× in last 7d / 204× 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 297 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51599?
CVE-2026-51599 is a critical vulnerability published on July 9, 2026. An insufficient input validation vulnerability in the RTSP service of MERCURY MIPC252W v1.0.5 Build 230306 Rel.79931n allows an unauthenticated remote attacker to render an individual TCP connection temporarily unusable via sending an RTSP request with a Content-Length header but no corresponding…
When was CVE-2026-51599 disclosed?
CVE-2026-51599 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51599 actively exploited?
CVE-2026-51599 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 52.5% of all scored CVEs.
What is the CVSS score of CVE-2026-51599?
CVE-2026-51599 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51599?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51599, 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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