Security readout for executives and security teams
Plain-English summary
CVE-2021-38463 affects AUVESY Versiondog. The issue can let a user consume unlimited memory buffers through API functions, potentially disrupting service and affecting data integrity. The supplied sources rate it high severity, but do not show CISA KEV listing or active exploitation evidence.
Executive priority
Treat this as a high-priority operational resilience issue for environments using Versiondog, especially in industrial or production-support contexts. The main business risk is service disruption and possible integrity impact, not data theft based on the provided CVSS data.
Technical view
The vulnerability is CWE-400, uncontrolled resource consumption, in AUVESY Versiondog. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H, indicating network reachability, low attack complexity, required low privileges, and high integrity and availability impact.
Likely exposure
Organizations using AUVESY Versiondog should assume exposure until they confirm vendor-specific status. The source bundle lists affected versions as “All,” but does not provide CPEs, deployment patterns, or fixed version details.
Exploitation context
The record says exploitation requires low privileges and user interaction. CISA KEV status is false in the source bundle, and no cited source here states active exploitation. Evidence is incomplete for real-world exploitation prevalence.
Researcher notes
The supplied facts are narrow: affected product, CWE-400, CVSS vector, and one CISA ICS advisory reference. Do not infer exploit maturity, exact API behavior, or remediation version without consulting vendor/CISA advisory content beyond this bundle.
Mitigation direction
- Check AUVESY and CISA guidance for fixed versions or compensating controls.
- Inventory all Versiondog deployments and owners.
- Restrict Versiondog API access to trusted management networks and users.
- Monitor Versiondog hosts for abnormal memory growth or service instability.
- Prioritize remediation where Versiondog is network-reachable.
Validation and detection
- Confirm whether AUVESY Versiondog is deployed in the environment.
- Record Versiondog versions, exposed interfaces, and responsible asset owners.
- Review access paths to Versiondog API functions.
- Check monitoring for memory exhaustion or unexplained service degradation.
- Track vendor advisory status because the bundle lacks fixed-version detail.
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-400: 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-2021-38463 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
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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:L/UI:R/S:U/C:N/I:H/A:H2.15.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01CVE reference · x_refsource_CONFIRM
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.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.