Security readout for executives and security teams
Plain-English summary
A flaw in Windows Remote Desktop Protocol may let an unauthorized remote attacker expose information from memory. Successful exploitation requires user interaction. The supplied rating indicates potentially serious confidentiality loss, but no direct data modification or service disruption.
Executive priority
Treat this as a prompt, risk-based patching priority rather than a confirmed exploitation emergency. Accelerate remediation for RDP-dependent systems, sensitive servers, and broadly reachable hosts. Track update coverage to completion.
Technical view
CVE-2026-57979 is a CWE-125 out-of-bounds read in Windows RDP. It is network reachable, low complexity, requires no privileges, and requires user interaction. CVSS 3.1 is 6.5, with high confidentiality impact and no stated integrity or availability impact.
Likely exposure
Systems running the listed Windows 10, Windows 11, and Windows Server releases are candidates. Actual exposure depends on RDP use, network reachability, user interaction, and whether Microsoft’s applicable security update is installed.
Exploitation context
The source bundle provides no evidence of active exploitation, and the CVE is not identified as being in KEV. No public exploit status or detailed attack scenario is supplied. Required user interaction reduces immediacy but does not eliminate risk.
Researcher notes
The supplied data does not include KB numbers, fixed build numbers, memory contents exposed, or detailed user-interaction prerequisites. The listed versions should not be interpreted as complete vulnerable build ranges without checking Microsoft’s advisory. Avoid inferring code execution from this confidentiality-only assessment.
Mitigation direction
- Review Microsoft’s CVE advisory and install the applicable security update.
- Prioritize systems using RDP or handling sensitive information.
- Restrict unnecessary RDP network access while updates are pending.
- Follow Microsoft guidance for systems requiring special servicing or deployment procedures.
Validation and detection
- Inventory systems against the affected Windows products and versions listed by Microsoft.
- Confirm each system’s applicable Microsoft security update is installed.
- Review whether RDP is enabled, used, or reachable across network boundaries.
- Recheck update compliance after deployment and investigate failed installations.
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-125: 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 lookupCVE-2026-57979 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C2.83.6microsoftVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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
- Windows Remote Desktop Protocol (RDP) Information Disclosure 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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.