CVE-2026-39253

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-23. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

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

An issue in Pivotal CRM v.6.6.04.08 allows a remote attacker to execute arbitrary code via the Pivotal.Core.Common.dll and Pivotal.Engine.Client.Services.Conversion.dll components.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity81% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

June 23, 2026

Last Modified

June 25, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

Remediating Insecure Deserialization (CWE-502) in Pivotal 6.6.04.08 (Smart Client / PBS) - Pivotal Support

https://timtimxs.github.io/CVE-2026-39253-Advisory/
generic

Sign in - Pivotal Support

https://support.pivotal.aurea.com/article/129552-remediating-insecure-deserialization-cwe-502-in-pivotal-6-6-04-08-smart-client-pbs

Vendor Advisories for CVE-2026-39253(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 13× in last 7d / 98× 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 198 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-39253?
CVE-2026-39253 is a high vulnerability published on June 23, 2026. An issue in Pivotal CRM v.6.6.04.08 allows a remote attacker to execute arbitrary code via the Pivotal.Core.Common.dll and Pivotal.Engine.Client.Services.Conversion.dll components.
When was CVE-2026-39253 disclosed?
CVE-2026-39253 was first published in the National Vulnerability Database on June 23, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39253 actively exploited?
CVE-2026-39253 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 49.1% of all scored CVEs.
What is the CVSS score of CVE-2026-39253?
CVE-2026-39253 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-39253?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39253, 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.

Dependency Blast Radius

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