CVE-2026-51947
An issue in Pivotal CRM 6.6.4.08 and systems using patch-ghi-15381-cwe-502-20251225.zip (fixed in Pivotal CRM 6.6.5.10 and Patch_CWE502_20260316.zip) allows...
- Published
- Jul 1, 2026
- Updated
- Jul 2, 2026
- Assigning CNA
- mitre
- Evidence observed
- Aug 17, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 63.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
An issue in Pivotal CRM 6.6.4.08 and systems using patch-ghi-15381-cwe-502-20251225.zip (fixed in Pivotal CRM 6.6.5.10 and Patch_CWE502_20260316.zip) allows a remote attacker to execute arbitrary code via the Pivotal.Engine.Client.Services.Conversion.dll component. NOTE: this issue exists because of an incomplete fix for CVE-2026-39253.
Sources
1- CVE-2026-51947-AdvisoryInformational
Pivotal CRM's patch for an initial deserialization vulnerability was incomplete. The fix switched from BinaryFormatter to JSON.NET but left TypeNameHandling set to 4 without implementing SerializationBinder, allowing attackers to execute arbitrary code through malicious $type payloads. Fixed in 6.6.5.10 and Patch_CWE502_20260316.zip
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