CVE-2026-39253

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH 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
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.1Exploit: NoneExposed: 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(high)
EPSS
52.3%
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 36× in last 7d / 69× 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.

  1. 2026-07-07 04:01 UTCEG score recompute
  2. 2026-07-07 04:01 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 15:30 UTCEG score recompute
  6. 2026-07-06 15:29 UTCGHSA enrichment
  7. 2026-07-06 03:17 UTCEG score recompute
  8. 2026-07-06 03:17 UTCGHSA enrichment
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-05 14:59 UTCEG score recompute
  12. 2026-07-05 14:59 UTCGHSA enrichment
  13. 2026-07-05 02:48 UTCEG score recompute
  14. 2026-07-05 02:48 UTCGHSA enrichment
  15. 2026-07-05 02:30 UTCEPSS rescore
  16. 2026-07-04 14:34 UTCEG score recompute
  17. 2026-07-04 14:34 UTCGHSA enrichment
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-04 02:23 UTCEG score recompute
  20. 2026-07-04 02:23 UTCGHSA enrichment
  21. 2026-07-03 14:05 UTCEG score recompute
  22. 2026-07-03 14:05 UTCGHSA enrichment
  23. 2026-07-03 01:55 UTCEG score recompute
  24. 2026-07-03 01:54 UTCGHSA enrichment
  25. 2026-07-02 13:43 UTCEG score recompute
Show 44 more
  1. 2026-07-02 13:43 UTCGHSA enrichment
  2. 2026-07-02 01:32 UTCEG score recompute
  3. 2026-07-02 01:32 UTCGHSA enrichment
  4. 2026-07-01 15:06 UTCEPSS rescore
  5. 2026-07-01 13:20 UTCEG score recompute
  6. 2026-07-01 13:20 UTCGHSA enrichment
  7. 2026-07-01 01:09 UTCEG score recompute
  8. 2026-07-01 01:09 UTCGHSA enrichment
  9. 2026-06-30 23:22 UTCEPSS rescore
  10. 2026-06-30 12:58 UTCEG score recompute
  11. 2026-06-30 12:58 UTCGHSA enrichment
  12. 2026-06-30 00:46 UTCEG score recompute
  13. 2026-06-30 00:46 UTCGHSA enrichment
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-29 12:35 UTCEG score recompute
  16. 2026-06-29 12:35 UTCGHSA enrichment
  17. 2026-06-29 00:24 UTCEG score recompute
  18. 2026-06-29 00:24 UTCGHSA enrichment
  19. 2026-06-28 14:07 UTCEPSS rescore
  20. 2026-06-28 12:12 UTCEG score recompute
  21. 2026-06-28 12:12 UTCGHSA enrichment
  22. 2026-06-28 04:56 UTCEPSS rescore
  23. 2026-06-28 00:01 UTCEG score recompute
  24. 2026-06-28 00:01 UTCGHSA enrichment
  25. 2026-06-27 11:50 UTCEG score recompute
  26. 2026-06-27 11:50 UTCGHSA enrichment
  27. 2026-06-27 03:08 UTCEPSS rescore
  28. 2026-06-26 23:39 UTCEG score recompute
  29. 2026-06-26 23:38 UTCGHSA enrichment
  30. 2026-06-26 11:27 UTCEG score recompute
  31. 2026-06-26 11:27 UTCGHSA enrichment
  32. 2026-06-25 23:17 UTCEG score recompute
  33. 2026-06-25 23:17 UTCGHSA enrichment
  34. 2026-06-25 13:49 UTCEPSS rescore
  35. 2026-06-25 13:49 UTCEPSS rescore
  36. 2026-06-25 11:05 UTCEG score recompute
  37. 2026-06-25 11:05 UTCGHSA enrichment
  38. 2026-06-24 22:54 UTCEG score recompute
  39. 2026-06-24 22:54 UTCGHSA enrichment
  40. 2026-06-24 14:05 UTCEPSS rescore
  41. 2026-06-24 10:43 UTCEG score recompute
  42. 2026-06-24 10:42 UTCGHSA enrichment
  43. 2026-06-23 22:30 UTCEG score recompute
  44. 2026-06-23 22:30 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 52.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

Explore the affected products and dependency analysis for CVE-2026-39253

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