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CVE Record

CVE-2021-40180: In the WeChat application 8.0.10 for Android and iOS, a mini program can obtain sensitive information from...

In the WeChat application 8.0.10 for Android and iOS, a mini program can obtain sensitive information from a user's address book via wx.searchContacts.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE describes a privacy issue in WeChat 8.0.10 for Android and iOS where a mini program could obtain sensitive address-book information through wx.searchContacts. The main business risk is unauthorized exposure of personal contact data, not evidence of server compromise.

Executive priority

Treat this as a privacy and data-governance issue requiring targeted mobile-app review. Prioritize executive, sales, recruiting, and customer-facing users if they store sensitive contacts and use WeChat mini programs.

Technical view

The CVE states that WeChat 8.0.10 on Android and iOS allowed a mini program to access sensitive information from a user's address book via wx.searchContacts. The record provides no CVSS score, CWE, confirmed fixed version, or detailed affected-version range beyond the description.

Likely exposure

Exposure is most relevant for users running WeChat 8.0.10 on Android or iOS and interacting with mini programs. Organizational impact depends on whether managed devices store employee, customer, partner, or executive contacts in the address book.

Exploitation context

CISA KEV is false, and the supplied sources do not state active exploitation. The public record indicates a reported capability affecting contact privacy, but it does not provide exploit prevalence, attacker activity, or a confirmed remediation timeline.

Researcher notes

The CVE description is narrow and metadata is sparse: no CVSS, CWE, CPE, or fixed version is provided. Analysis should avoid broad WeChat version claims unless confirmed by vendor or primary research sources.

Mitigation direction

  • Check Tencent or WeChat vendor guidance for fixed or unaffected versions.
  • Update WeChat where vendor guidance identifies a safer supported version.
  • Limit use of untrusted mini programs on affected WeChat versions.
  • Review MDM controls that restrict address-book access where feasible.
  • Reduce sensitive contact storage on devices used for high-risk roles.

Validation and detection

  • Inventory managed Android and iOS devices for WeChat 8.0.10.
  • Identify users who run WeChat mini programs on managed or business-use devices.
  • Check whether sensitive business contacts are stored in local address books.
  • Confirm current vendor advisory status before closing remediation tracking.
  • Document privacy-impact assumptions because CVE metadata is incomplete.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

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CVE-2021-40180 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.