CVE-2026-25657

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-05. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

Ericsson Packet Core Gateway (PCG) versions prior to 1.30 contain an Improper Handling of Syntactically Invalid Structure (CWE-228) vulnerability where an attacker continuously sending a specially crafted message can cause service degradation. The impact continues as long the attack persists but the system recovers from the crashes when the attack stops.

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
6.0%
KEV
Not listed

Published

June 5, 2026

Last Modified

June 8, 2026

References (1)

Vendor Advisories for CVE-2026-25657(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 21× in last 7d / 108× 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 119 total refreshes for this CVE.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-05 19:11 UTCEG score recompute
  4. 2026-07-05 19:11 UTCGHSA enrichment
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 20:48 UTCEG score recompute
  7. 2026-07-04 20:48 UTCGHSA enrichment
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-03 09:50 UTCEG score recompute
  11. 2026-07-03 09:49 UTCGHSA enrichment
  12. 2026-07-02 05:44 UTCEG score recompute
  13. 2026-07-02 05:44 UTCGHSA enrichment
  14. 2026-07-01 15:06 UTCEPSS rescore
  15. 2026-07-01 15:06 UTCEPSS rescore
  16. 2026-07-01 07:19 UTCEG score recompute
  17. 2026-07-01 07:19 UTCGHSA enrichment
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-30 23:22 UTCEPSS rescore
  20. 2026-06-30 07:51 UTCEG score recompute
  21. 2026-06-30 07:51 UTCGHSA enrichment
  22. 2026-06-29 14:06 UTCEPSS rescore
  23. 2026-06-29 08:57 UTCEG score recompute
  24. 2026-06-29 08:57 UTCGHSA enrichment
  25. 2026-06-28 14:07 UTCEPSS rescore
Show 75 more
  1. 2026-06-28 14:07 UTCEPSS rescore
  2. 2026-06-28 09:54 UTCEG score recompute
  3. 2026-06-28 09:54 UTCGHSA enrichment
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-27 11:28 UTCEG score recompute
  7. 2026-06-27 11:28 UTCGHSA enrichment
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-26 13:05 UTCEG score recompute
  10. 2026-06-26 13:05 UTCGHSA enrichment
  11. 2026-06-25 14:31 UTCEG score recompute
  12. 2026-06-25 14:30 UTCGHSA enrichment
  13. 2026-06-25 13:49 UTCEPSS rescore
  14. 2026-06-25 13:49 UTCEPSS rescore
  15. 2026-06-24 16:07 UTCEG score recompute
  16. 2026-06-24 16:07 UTCGHSA enrichment
  17. 2026-06-24 14:05 UTCEPSS rescore
  18. 2026-06-24 14:05 UTCEPSS rescore
  19. 2026-06-23 21:33 UTCEPSS rescore
  20. 2026-06-23 21:32 UTCEPSS rescore
  21. 2026-06-23 17:39 UTCEG score recompute
  22. 2026-06-23 17:39 UTCGHSA enrichment
  23. 2026-06-22 15:19 UTCEG score recompute
  24. 2026-06-22 15:19 UTCGHSA enrichment
  25. 2026-06-22 14:25 UTCEPSS rescore
  26. 2026-06-22 14:25 UTCEPSS rescore
  27. 2026-06-21 14:56 UTCEPSS rescore
  28. 2026-06-21 14:56 UTCEPSS rescore
  29. 2026-06-21 07:29 UTCEG score recompute
  30. 2026-06-21 07:29 UTCGHSA enrichment
  31. 2026-06-21 01:59 UTCEPSS rescore
  32. 2026-06-21 01:59 UTCEPSS rescore
  33. 2026-06-20 08:40 UTCEG score recompute
  34. 2026-06-20 08:40 UTCGHSA enrichment
  35. 2026-06-19 19:25 UTCEPSS rescore
  36. 2026-06-19 19:25 UTCEPSS rescore
  37. 2026-06-19 02:22 UTCEG score recompute
  38. 2026-06-19 02:22 UTCGHSA enrichment
  39. 2026-06-18 17:52 UTCEPSS rescore
  40. 2026-06-18 03:12 UTCEG score recompute
  41. 2026-06-18 03:12 UTCGHSA enrichment
  42. 2026-06-17 17:53 UTCEPSS rescore
  43. 2026-06-17 17:53 UTCEPSS rescore
  44. 2026-06-17 04:43 UTCEG score recompute
  45. 2026-06-17 04:43 UTCGHSA enrichment
  46. 2026-06-16 06:20 UTCEG score recompute
  47. 2026-06-16 06:20 UTCGHSA enrichment
  48. 2026-06-15 17:48 UTCEPSS rescore
  49. 2026-06-15 07:55 UTCEG score recompute
  50. 2026-06-15 07:55 UTCGHSA enrichment
  51. 2026-06-14 23:18 UTCEPSS rescore
  52. 2026-06-14 09:32 UTCEG score recompute
  53. 2026-06-14 09:32 UTCGHSA enrichment
  54. 2026-06-13 23:00 UTCEPSS rescore
  55. 2026-06-13 11:09 UTCEG score recompute
  56. 2026-06-13 11:09 UTCGHSA enrichment
  57. 2026-06-12 23:12 UTCEPSS rescore
  58. 2026-06-12 23:12 UTCEPSS rescore
  59. 2026-06-12 12:42 UTCEG score recompute
  60. 2026-06-12 12:42 UTCGHSA enrichment
  61. 2026-06-11 14:19 UTCEG score recompute
  62. 2026-06-11 14:19 UTCGHSA enrichment
  63. 2026-06-11 14:00 UTCEPSS rescore
  64. 2026-06-10 22:18 UTCEPSS rescore
  65. 2026-06-10 22:18 UTCEPSS rescore
  66. 2026-06-10 15:56 UTCEG score recompute
  67. 2026-06-10 15:56 UTCGHSA enrichment
  68. 2026-06-10 13:22 UTCEPSS rescore
  69. 2026-06-09 17:34 UTCEG score recompute
  70. 2026-06-09 17:34 UTCGHSA enrichment
  71. 2026-06-08 19:11 UTCEG score recompute▼ 0.60
  72. 2026-06-08 19:11 UTCGHSA enrichment
  73. 2026-06-08 14:17 UTCEPSS rescore
  74. 2026-06-08 14:17 UTCEPSS rescore
  75. 2026-06-08 07:50 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-25657?
CVE-2026-25657 is a medium vulnerability published on June 5, 2026. Ericsson Packet Core Gateway (PCG) versions prior to 1.30 contain an Improper Handling of Syntactically Invalid Structure (CWE-228) vulnerability where an attacker continuously sending a specially crafted message can cause service degradation. The impact continues as long the attack persists but…
When was CVE-2026-25657 disclosed?
CVE-2026-25657 was first published in the National Vulnerability Database on June 5, 2026, with the most recent update on June 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25657 actively exploited?
CVE-2026-25657 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-25657?
CVE-2026-25657 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-25657?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25657, 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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