Security readout for executives and security teams
Plain-English summary
CVE-2023-51142 is a sensitive information exposure issue in ZKTeco BioTime v8.5.4 and earlier. The published score is high because a remote unauthenticated attacker could access confidential information without user interaction. The bundle does not identify what information is exposed.
Executive priority
Treat this as a priority exposure-reduction item if BioTime is present. The main business risk is unauthorized disclosure of sensitive workforce or access-control data.
Technical view
The CVE describes CWE-200 information disclosure in ZKTeco BioTime v8.5.4 and before. CVSS 3.1 is 7.5 with network access, low complexity, no privileges, no user interaction, unchanged scope, and high confidentiality impact only.
Likely exposure
Exposure is most likely where ZKTeco BioTime is deployed on networks reachable by untrusted users, especially internet-facing or broadly accessible internal portals.
Exploitation context
The bundle lists public references, including a third-party gist and a ZKTeco security bulletin. It does not show CISA KEV listing or cited evidence of active exploitation.
Researcher notes
The source bundle is sparse: affected metadata is marked n/a, while the description names BioTime v8.5.4 and before. Avoid assuming exploit maturity, data classes, or exact remediation beyond vendor guidance.
Mitigation direction
- Identify all ZKTeco BioTime deployments and installed versions.
- Review ZKTeco’s security bulletin for the vendor-approved fixed version or workaround.
- Upgrade or remediate BioTime instances according to vendor guidance.
- Restrict BioTime access to trusted networks and administrative users.
- Monitor BioTime access logs for unusual information-access patterns.
Validation and detection
- Confirm whether any BioTime instance is v8.5.4 or earlier.
- Check whether BioTime is reachable from the internet or untrusted network zones.
- Verify remediation status against the ZKTeco security bulletin.
- Review access logs for unexplained remote requests or abnormal data access.
- Document residual exposure where upgrade timing depends on operations.
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-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2023-51142 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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:N/S:U/C:H/I:N/A:N3.93.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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://gist.github.com/ipxsec/b20383620c9e1d5300f7716e62e8a82fCVE reference, mitre
- https://www.zkteco.com/en/Security_Bulletinsibs/14CVE reference, mitre
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.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.