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CVE Record

CVE-2020-36473: UCWeb UC 12.12.3.1219 through 12.12.3.1226 uses cleartext HTTP, and thus man-in-the-middle attackers can di...

UCWeb UC 12.12.3.1219 through 12.12.3.1226 uses cleartext HTTP, and thus man-in-the-middle attackers can discover visited URLs.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Certain UCWeb UC browser versions reportedly send browsing activity over unencrypted HTTP, allowing someone on the network path to see visited URLs. This is primarily a privacy and confidentiality issue, not evidence of device takeover.

Executive priority

Treat as a moderate privacy exposure. Prioritize environments handling sensitive browsing activity, executives, regulated users, and unmanaged mobile fleets.

Technical view

CVE-2020-36473 describes cleartext HTTP use in UCWeb UC 12.12.3.1219 through 12.12.3.1226. A man-in-the-middle observer could discover visited URLs. The source bundle provides no CVSS score, CWE mapping, platform detail, patch version, or vendor advisory.

Likely exposure

Exposure appears limited to users running UCWeb UC versions 12.12.3.1219 through 12.12.3.1226. The bundle does not identify operating systems, package sources, or CPEs.

Exploitation context

The CVE is not listed as CISA KEV in the bundle. Exploitation requires observation or interception on the network path. No source here confirms active exploitation.

Researcher notes

Evidence is sparse. The CVE description is clear about URL disclosure via HTTP, but lacks affected platform, CVSS, fix status, and detailed protocol behavior. Avoid expanding scope beyond the named versions.

Mitigation direction

  • Inventory UCWeb UC browser installations and versions.
  • Check vendor or app-store guidance for fixed versions.
  • Remove or replace affected versions where URL privacy matters.
  • Avoid using affected versions on untrusted networks.

Validation and detection

  • Confirm whether UCWeb UC is installed in managed endpoints.
  • Verify installed versions against 12.12.3.1219 through 12.12.3.1226.
  • Review network telemetry for cleartext HTTP browsing from affected clients.
  • Document any compensating controls for unmanaged mobile users.
Prepared
Confidence
medium
Sources
3

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

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ATT&CK lookup starting points

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CVE-2020-36473 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
2Source 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.