Security readout for executives and security teams
Plain-English summary
This is a Microsoft Edge Chromium-based remote code execution vulnerability. An attacker would need user interaction and the attack is rated high complexity, but successful exploitation could expose sensitive data and make limited changes. There is no source-provided evidence of active exploitation.
Executive priority
Treat this as a routine but important browser patch. It is not source-confirmed as actively exploited, but browser RCE issues can affect broad endpoint populations and should not wait indefinitely.
Technical view
CVE-2024-49023 affects Microsoft Edge Chromium-based and is associated with CWE-416, use-after-free. The CVSS 3.1 score is 5.9 with network attack vector, no privileges required, user interaction required, high attack complexity, high confidentiality impact, and low integrity impact.
Likely exposure
Exposure is most relevant to organizations running Microsoft Edge Chromium-based on user endpoints. Risk is higher where users browse untrusted sites or open externally supplied content. The provided bundle does not include detailed fixed build ranges.
Exploitation context
The CVSS vector indicates exploitation requires user interaction and high attack complexity. The CVE is not listed as KEV in the provided data, and no cited source in the bundle states active exploitation.
Researcher notes
The provided evidence supports a medium-severity Edge RCE classification with CWE-416 and an official Microsoft patch reference. It does not provide exploit details, proof of exploitation, or exact fixed versions in the bundle.
Mitigation direction
- Apply the Microsoft Edge update identified in Microsoft’s advisory.
- Ensure Edge automatic updates are enabled across managed endpoints.
- Prioritize browsers used for external web access and high-value users.
- Check Microsoft guidance for exact affected and fixed build details.
Validation and detection
- Inventory Microsoft Edge Chromium-based installations across endpoints.
- Compare installed Edge versions against Microsoft’s advisory.
- Confirm endpoint management reports successful browser update deployment.
- Use vulnerability scanning to verify CVE-2024-49023 is no longer flagged.
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-416: 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-2024-49023 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
- Medium
- CVSS
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N/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:H/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C1.64.2microsoftVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N/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 Edge (Chromium-based) 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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.