CVE-2026-57029

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-07-10. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

A Missing Synchronization vulnerability in the flow collector handler of Juniper Networks Junos OS Evolved on QFX Series allows an adjacent, unauthenticated attacker to cause a Denial-of-Service (DoS).

When the reachability of an sFlow collector changes, the corresponding next-hop entry is updated. If this update occurs simultaneously with the sFlow thread accessing the next-hop data (which is outside the attackers control), it causes the evo-pfemand process to crash, impacting all traffic forwarding until the automatic process restart has completed.

This issue affects Junos OS Evolved on QFX Series:

* all 23.2 versions,  * 23.4 versions before 23.4R2-S7-EVO, * 24.2 versions before 24.2R2-S5-EVO, * 24.4 versions before 24.4R2-S3-EVO, * 25.2 versions before 25.2R2-EVO.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 13, 2026

Advisory Details (1)

Auto-updated Jul 9, 2026
No patch confirmed yet.
generic

CEC Juniper Community

https://supportportal.juniper.net/JSA110089

Vendor Advisories for CVE-2026-57029(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 17× in last 7d / 76× 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 112 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-57029?
CVE-2026-57029 is a medium vulnerability published on July 9, 2026. A Missing Synchronization vulnerability in the flow collector handler of Juniper Networks Junos OS Evolved on QFX Series allows an adjacent, unauthenticated attacker to cause a Denial-of-Service (DoS). When the reachability of an sFlow collector changes, the corresponding next-hop entry is updated.…
When was CVE-2026-57029 disclosed?
CVE-2026-57029 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57029 actively exploited?
CVE-2026-57029 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 91.4% of all scored CVEs.
What is the CVSS score of CVE-2026-57029?
CVE-2026-57029 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-57029?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57029, 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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