Security readout for executives and security teams
Plain-English summary
This is a high-severity Microsoft Outlook and Office vulnerability that could allow an authenticated remote attacker to run code without user interaction. Successful exploitation could expose data, alter systems, or disrupt operations. The supplied sources identify Microsoft guidance and a patch reference, but do not provide the exact update identifiers.
Executive priority
Treat this as a high-priority patching issue because successful exploitation could fully compromise confidentiality, integrity, and availability without user interaction. Confirm exposure promptly and deploy Microsoft’s applicable update. Evidence supplied here does not justify declaring an active-exploitation emergency.
Technical view
CVE-2024-30103 is an Outlook remote-code-execution issue classified as CWE-184. Its CVSS 3.1 score is 8.8: network-accessible, low complexity, low privileges required, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Potential exposure includes the listed records for Microsoft 365 Apps for Enterprise 16.0.1, Office 2019 19.0.0, Office LTSC 2021 16.0.1, and Outlook 2016 16.0.0.0. Confirm precise affected builds against Microsoft’s advisory because the bundle provides no detailed version ranges.
Exploitation context
The supplied bundle does not establish active exploitation, and the CVE is not identified as being in CISA KEV. The CVSS vector indicates network reachability, low attack complexity, required low privileges, and no user interaction. Public exploit availability is not established by the provided evidence.
Researcher notes
The authoritative details provided are limited to the CVSS vector, CWE-184 classification, affected product records, and Microsoft advisory. Exact vulnerable build ranges, attack mechanics, update identifiers, and exploitation telemetry are absent. Validate those details directly against the current Microsoft advisory before making detection or exposure conclusions.
Mitigation direction
- Review Microsoft’s CVE advisory to identify the applicable security update for each installed Office or Outlook build.
- Deploy applicable Microsoft security updates to affected installations through established patch-management procedures.
- Use only Microsoft-documented mitigations or workarounds if immediate updating is not possible.
- Prioritize internet-facing, email-processing, and high-value user systems after confirming they contain affected software.
Validation and detection
- Inventory installed Microsoft 365 Apps, Office, and Outlook editions, versions, builds, and update channels.
- Compare each installed build and update status with Microsoft’s CVE-2024-30103 advisory.
- Verify successful update installation through endpoint management records and local application build data.
- Re-scan managed endpoints for missing applicable Microsoft security updates.
- Document systems that cannot be updated and track their Microsoft-supported compensating controls.
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-184: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2024-30103 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
- 8.8 (3.1)
- Known Exploited
- No
- Published
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
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:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C2.85.9microsoftVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: 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
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 Outlook 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.
Incomplete List of Disallowed Inputs
Incomplete List of Disallowed Inputs represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.