CVE-2025-7889Public exploit

Local task hijacking via default task affinity

Published Jul 20, 2025 · Updated Jul 21, 2025

Task hijacking in CallApp: Caller ID & Block 2.0.0 through 2.0.4 allows local users to display a phishing activity in place of the app. AndroidManifest.xml leaves taskAffinity at its package-name default, so a malicious app can claim caller.id.phone.number.block and occupy the task root. Exploitation requires a malicious app to be installed and run before CallApp is launched; the spoofed activity can capture entered data or induce permission grants.

CVSS severity5.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Task hijacking in CallApp: Caller ID & Block 2.0.0 through 2.0.4 allows local users to display a phishing activity in place of the app. AndroidManifest.xml leaves taskAffinity at its package-name default, so a malicious app can claim caller.id.phone.number.block and occupy the task root. Exploitation requires a malicious app to be installed and run before CallApp is launched; the spoofed activity can capture entered data or induce permission grants.

The record

CVE
CVE-2025-7889
Published
Jul 20, 2025
Updated
Jul 21, 2025
Vendor
CallApp Software Ltd.
Product
CallApp: Caller ID & Block
Classifications
CWE-926, T1655
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2.0.0
  2. Affected versionversion=2.0.1
  3. Affected versionversion=2.0.2
  4. Affected versionversion=2.0.3
  5. Affected versionversion=2.0.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

CallApp Software Ltd. · CallApp: Caller ID & Blockversion=2.0.0; version=2.0.1; version=2.0.2; version=2.0.3; version=2.0.4

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-926Improper Export of Android Application Components
T1655Masquerading

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo