CVE-2026-3822Network attack vector

Traffic interception via unverified server certificates

Published Mar 9, 2026 · Updated Mar 9, 2026

Improper certificate validation in Taipower APP for Android 3.4.4 and earlier allows remote attackers to read and alter HTTPS traffic. The app accepts a server's TLS/SSL certificate without verifying it, allowing an interception endpoint to impersonate the intended server. Exploitation requires a man-in-the-middle network position; it exposes packet contents to reading and tampering without reported availability impact.

CVSS severity8.3
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in Taipower APP for Android 3.4.4 and earlier allows remote attackers to read and alter HTTPS traffic. The app accepts a server's TLS/SSL certificate without verifying it, allowing an interception endpoint to impersonate the intended server. Exploitation requires a man-in-the-middle network position; it exposes packet contents to reading and tampering without reported availability impact.

The record

CVE
CVE-2026-3822
Published
Mar 9, 2026
Updated
Mar 9, 2026
Vendor
Taiwan Power Company
Product
Taipower APP
Classifications
CWE-295, T1638
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.4.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Taiwan Power Company · Taipower APPversion=0 <=3.4.4

Published CVSS scores

6.5TWCERT/CCCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
8.3TWCERT/CCCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
4.8NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1638Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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