Security readout for executives and security teams
Plain-English summary
CVE-2020-1574 is a Windows Codecs Library memory-handling flaw. A maliciously crafted image file could allow arbitrary code execution when an affected Windows program processes it. The provided sources list Windows 10 versions 1909 and 2004 as affected.
Executive priority
Handle through standard endpoint patching, with faster priority for teams that ingest customer, partner, or internet-sourced images. There is no provided evidence of active exploitation, but code execution flaws in common media components deserve timely remediation.
Technical view
The issue is classified as CWE-119 and scored CVSS 5.5. Microsoft states the update corrects how Windows Codecs Library handles objects in memory. The CVSS vector indicates local attack vector, low complexity, low privileges, no user interaction, and high confidentiality impact.
Likely exposure
Exposure is most relevant on affected Windows 10 1909 or 2004 systems that process untrusted image files. The bundle does not identify servers, cloud services, or non-Windows products as affected.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. Exploitation requires a program to process a specially crafted image file, so risk depends on file intake and image-processing workflows.
Researcher notes
The main ambiguity is exploitability context: Microsoft describes crafted image processing, while the CVSS vector is local with low privileges and no user interaction. Validate against MSRC details and installed patch levels before expanding affected scope.
Mitigation direction
- Apply the Microsoft security update referenced by MSRC.
- Check Microsoft guidance for exact affected builds and update status.
- Prioritize systems that process externally supplied image files.
- Avoid treating file-handling controls as a substitute for patching.
Validation and detection
- Inventory Windows 10 version 1909 and 2004 endpoints.
- Confirm the relevant Microsoft update is installed.
- Review systems or workflows that process untrusted image files.
- Track MSRC for any later guidance or supersedence notes.
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-119: 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-2020-1574 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
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C1.83.6microsoftVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/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
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1574CVE reference, microsoft · x_refsource_MISC
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.
Improper Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.