CVE-2025-43976Public exploit

Unauthorized calls via unprotected exported dialer activity

Published Jul 21, 2025 · Updated Jul 22, 2025

Missing authorization in TextNow 2ndLine 24.17.1.0 and earlier allows local users to place phone calls through a crafted intent. The exported com.enflick.android.TextNow.activities.DialerActivity accepts an interapplication intent and initiates a call without checking for phone-call permission. An attacker-controlled application must already be installed on the Android device; no permissions or victim interaction are required, and the demonstrated consequence is unauthorized call placement.

CVSS severity5.5
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in TextNow 2ndLine 24.17.1.0 and earlier allows local users to place phone calls through a crafted intent. The exported com.enflick.android.TextNow.activities.DialerActivity accepts an interapplication intent and initiates a call without checking for phone-call permission. An attacker-controlled application must already be installed on the Android device; no permissions or victim interaction are required, and the demonstrated consequence is unauthorized call placement.

The record

CVE
CVE-2025-43976
Published
Jul 21, 2025
Updated
Jul 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1404
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
4.3CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1404Exploitation for Privilege Escalation

Public exploit references

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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