Security readout for executives and security teams
Plain-English summary
This SharePoint Server flaw could let an already highly privileged, network-connected attacker run code on an affected server without user interaction. Successful exploitation could expose, alter, or disrupt SharePoint data and services. The prerequisite for high privileges reduces reach, but the potential business impact remains substantial.
Executive priority
Treat as a high-priority patching and access-control issue. Confirm affected SharePoint estates and update them promptly, focusing first on sensitive or broadly reachable farms. There is no supplied evidence of active exploitation, so emergency incident status is not justified solely by this bundle.
Technical view
CVE-2024-43464 is a remote code execution vulnerability associated with CWE-502, deserialization of untrusted data. Its CVSS 3.1 score is 7.2: network-accessible, low complexity, high privileges required, and no user interaction. Successful exploitation may cause high confidentiality, integrity, and availability impact.
Likely exposure
Exposure applies to listed deployments of SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition. Practical risk is greatest where privileged accounts can reach vulnerable SharePoint services. The supplied data does not establish which specific builds remain vulnerable after updates.
Exploitation context
The source bundle does not identify active exploitation, and the CVE is not marked as CISA KEV. Exploitation requires high privileges but no victim interaction. No public exploit availability or observed attack activity is established by the supplied sources.
Researcher notes
The CVSS vector is AV:N/AC:L/PR:H/UI:N/S:U with C:H/I:H/A:H. CWE-502 indicates unsafe deserialization, but the supplied sources provide no detailed vulnerable component, attack chain, proof of concept, or indicators. Avoid assuming exploitation mechanics beyond the vendor and CVE descriptions.
Mitigation direction
- Apply the Microsoft security update identified in the vendor advisory.
- Prioritize reachable production SharePoint farms and servers holding sensitive information.
- Restrict privileged SharePoint access to trusted administrators and necessary network paths.
- Check Microsoft guidance for prerequisites, deployment sequencing, and any later revisions.
Validation and detection
- Inventory all SharePoint servers and editions covered by the advisory.
- Compare installed build and update levels with Microsoft's current CVE guidance.
- Confirm the applicable security update is installed across every server in each farm.
- Review privileged SharePoint activity for anomalies; no CVE-specific indicators were supplied.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-43464 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C1.25.9microsoftVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft SharePoint Server Remote Code Execution VulnerabilityCVE reference, microsoft · vendor-advisory, patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.