Recorded 29 Oct 2026 at 18:33 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

The historical field “Public exploit code” recorded Nuclei detection-template membership. It did not establish exploit availability. The original recorded fields remain below.

The historical “Publicly disclosed: No” field could represent a missing MSRC assessment. It does not establish that the vulnerability was undisclosed. The original recorded fields remain below.

CVEMicrosoft Security Response Center

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.

What it said

CVE: CVE-2026-77908
Severity: Important
CVSS base score: 8.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Impact: Remote Code Execution
Exploitation detected: Not reported by MSRC
Publicly disclosed: No
Exploitability: Not assessed
Component: Microsoft Dynamics 365
Weakness: CWE-94: Improper Control of Generation of Code ('Code Injection')
Issued by: Microsoft
Customer action: Required: apply the update
Affected products: Microsoft Dynamics 365 Customer Engagement V9.1
Updates that fix it: KB5123731: Microsoft Dynamics 365 Customer Engagement V9.1
CISA KEV: Not listed in the collected catalog
EPSS: 1.0%; scored 29 Oct 2026
Public exploit code: No Nuclei template listed
Published: 8 Sep 2026 07:00 UTC
Last revised: 8 Sep 2026 07:00 UTC
Revision note: Information published.

Recorded links

Source evidence when recorded

Microsoft security releases: Complete at observationRead 29 Oct 2026 at 18:31 UTC
CISA KEV: Complete at observationRead 29 Oct 2026 at 18:31 UTC
FIRST EPSS: Complete at observationRead 29 Oct 2026 at 18:31 UTC
Public detection templates (Nuclei): Complete at observationRead 29 Oct 2026 at 18:31 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

What changed

Detection template: Unknown: exploit-code evidence is incomplete or retained → No Nuclei template listed · CISA KEV: Unknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
23 Oct 2026 · 09:33:49 UTC
Detection template: No Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained · CISA KEV: Not listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
23 Oct 2026 · 08:31:50 UTC

Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version

Field-level log (29)

Up to 100 recent field edits are shown; older edits may be outside retention.

29 Oct 2026 · 18:33:30 UTC EPSS1.0%; scored 28 Oct 2026 → 1.0%; scored 29 Oct 2026
28 Oct 2026 · 20:00:33 UTC EPSS1.0%; scored 27 Oct 2026 → 1.0%; scored 28 Oct 2026
27 Oct 2026 · 15:48:13 UTC EPSS1.0%; scored 26 Oct 2026 → 1.0%; scored 27 Oct 2026
26 Oct 2026 · 23:57:09 UTC EPSS1.0%; scored 25 Oct 2026 → 1.0%; scored 26 Oct 2026
25 Oct 2026 · 17:12:51 UTC EPSS1.0%; scored 24 Oct 2026 → 1.0%; scored 25 Oct 2026
25 Oct 2026 · 01:34:18 UTC EPSS1.0%; scored 23 Oct 2026 → 1.0%; scored 24 Oct 2026
23 Oct 2026 · 15:51:28 UTC EPSS1.0%; scored 22 Oct 2026 → 1.0%; scored 23 Oct 2026
23 Oct 2026 · 09:33:49 UTC Public exploit codeUnknown: exploit-code evidence is incomplete or retained → No Nuclei template listed
23 Oct 2026 · 09:33:49 UTC CISA KEVUnknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
23 Oct 2026 · 09:33:49 UTC Source coverage: public-exploit-codeIncomplete → Current
23 Oct 2026 · 09:33:49 UTC Source coverage: first-epssIncomplete → Current
23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
23 Oct 2026 · 08:31:50 UTC Public exploit codeNo Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained
23 Oct 2026 · 08:31:50 UTC CISA KEVNot listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
23 Oct 2026 · 08:31:50 UTC Source coverage: public-exploit-codeCurrent → Incomplete
23 Oct 2026 · 08:31:50 UTC Source coverage: first-epssCurrent → Incomplete
23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete
23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
22 Oct 2026 · 17:33:15 UTC EPSS1.0%; scored 21 Oct 2026 → 1.0%; scored 22 Oct 2026
21 Oct 2026 · 21:47:24 UTC EPSS1.0%; scored 20 Oct 2026 → 1.0%; scored 21 Oct 2026
20 Oct 2026 · 20:53:31 UTC EPSS1.0%; scored 19 Oct 2026 → 1.0%; scored 20 Oct 2026
19 Oct 2026 · 15:12:40 UTC EPSS1.0%; scored 18 Oct 2026 → 1.0%; scored 19 Oct 2026
18 Oct 2026 · 14:54:30 UTC EPSS1.0%; scored 16 Oct 2026 → 1.0%; scored 18 Oct 2026
18 Oct 2026 · 14:54:30 UTC Link: September 2026/security?release=2026-Sep#cves
16 Oct 2026 · 16:13:25 UTC EPSS1.0%; scored 15 Oct 2026 → 1.0%; scored 16 Oct 2026
15 Oct 2026 · 21:30:54 UTC EPSS1.0%; scored 14 Oct 2026 → 1.0%; scored 15 Oct 2026
15 Oct 2026 · 01:07:54 UTC EPSS1.0%; scored 13 Oct 2026 → 1.0%; scored 14 Oct 2026
14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current