Security readout for executives and security teams
Plain-English summary
This high-severity flaw could let a low-privileged, authenticated attacker remotely execute code through affected Microsoft SQL Server Native Scoring components. Successful exploitation could compromise database confidentiality, integrity, and availability. The source bundle does not identify required feature configuration or specific attack conditions beyond the CVSS vector.
Executive priority
Treat as a high-priority patching and exposure-review item, particularly for business-critical or broadly reachable SQL Server systems. Immediate emergency response is not supported solely by this bundle because active exploitation is unconfirmed, but the remote code execution impact and low attack complexity justify prompt remediation.
Technical view
CVE-2024-26191 is classified as CWE-122, a heap-based buffer overflow. Its CVSS 3.1 score is 8.8, with network access, low complexity, low privileges, and no user interaction. Affected branches include listed SQL Server 2017, 2019, and 2022 GDR or CU releases.
Likely exposure
Potential exposure exists where listed SQL Server 2017, 2019, or 2022 releases remain unpatched and are reachable by authenticated low-privileged users. The supplied evidence does not establish whether Native Scoring must be enabled, which configurations are vulnerable, or whether network perimeter controls alone prevent exploitation.
Exploitation context
The supplied bundle marks this CVE as absent from KEV and provides no evidence of active exploitation or public exploit availability. That does not prove exploitation has never occurred. Assessment should remain based on affected versions, access paths, and Microsoft guidance.
Researcher notes
The strongest technical signals are CWE-122 and the CVSS vector. Product entries identify SQL Server 2017 CU31 and GDR, 2019 CU28 and GDR, and 2022 CU14 and GDR branches, but the supplied version values are broad. Consult Microsoft for exact vulnerable and fixed builds; configuration prerequisites remain unspecified.
Mitigation direction
- Apply the applicable Microsoft security update referenced by the vendor advisory.
- Prioritize reachable database servers accepting connections from low-privileged or untrusted accounts.
- Restrict SQL Server network access and authentication pathways until updates are confirmed.
- Review Microsoft guidance for prerequisites, update branches, and any additional mitigations.
Validation and detection
- Inventory SQL Server 2017, 2019, and 2022 instances and their exact build numbers.
- Compare each build and servicing branch against Microsoft's CVE advisory.
- Confirm applicable security updates installed successfully and survived subsequent maintenance.
- Review network reachability and low-privileged account access to affected database instances.
- Monitor affected systems for unexpected processes, service failures, or anomalous authenticated activity.
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-122: 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-2024-26191 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 SQL Server Native Scoring 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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.