Security readout for executives and security teams
Plain-English summary
CVE-2021-47774 affects Kingdia CD Extractor 3.0.2, a niche Windows media utility. The reported flaw can let an attacker run code through a crafted registration-name input. A public ExploitDB entry exists, but the provided sources do not show confirmed active exploitation or a vendor patch.
Executive priority
Treat as high priority if the software exists in your environment; otherwise, risk is low. The main action is fast inventory and removal of unnecessary installations. Public exploit availability makes unmanaged endpoints the primary concern.
Technical view
The CVE describes a buffer overflow in Kingdia CD Extractor 3.0.2 tied to the registration name field, classified as CWE-787. The record assigns CVSS 3.1 score 9.8, indicating potential unauthenticated remote code execution. Public exploit material is referenced, but source evidence does not include vendor remediation details.
Likely exposure
Exposure is likely limited to endpoints where Kingdia CD Extractor 3.0.2 is installed. This appears to be consumer or niche desktop software, not broadly expected on servers. Organizations should prioritize software inventory before assuming enterprise-wide exposure.
Exploitation context
ExploitDB has a public exploit reference, which raises researcher and attacker awareness. However, the bundle marks KEV as false and provides no cited evidence of active exploitation in the wild. Do not treat this as confirmed exploited without additional intelligence.
Researcher notes
The provided evidence supports a serious memory corruption issue and public exploit reference. It does not include a vendor advisory, patch version, or confirmed exploitation. The affected product metadata is sparse, so validate product identity carefully during asset discovery.
Mitigation direction
- Inventory endpoints for Kingdia CD Extractor 3.0.2.
- Remove the software where it is not business-required.
- If required, check vendor or distributor guidance for updates.
- Restrict execution of unapproved legacy desktop utilities.
- Use endpoint controls to monitor crashes and suspicious child processes.
Validation and detection
- Confirm whether Kingdia CD Extractor is installed on managed endpoints.
- Verify installed version numbers, especially 3.0.2.
- Review software allowlists and application control policies.
- Check EDR telemetry for abnormal Kingdia CD Extractor behavior.
- Track CVE and vendor pages for remediation updates.
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-787: 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-2021-47774 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
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:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50470CVE reference · exploit
- Software Download PageCVE reference · product
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 Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.