CVE-2025-43976: The com.enflick.android.tn2ndLine application through 24.17.1.0 for Android enables any installed application

Routine

MEDIUM 5.5DOWNGRADE

CVE-2025-43976 is a medium-severity flaw (CVSS 5.5) affecting 2ndline. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The com.enflick.android.tn2ndLine application through 24.17.1.0 for Android enables any installed application (with no permissions) to place phone calls without user interaction by sending a crafted intent via the com.enflick.android.TextNow.activities.DialerActivity component.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-862
Published	2025-07-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: textnow

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-21 15:15 UTCPublished CVE record published
2026-06-17 09:24 UTCUpdated Record last modified

textnow 2ndline DOWNGRADE

Affected: 24.17.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 24.17.1.0

1. Check installed version

apt-cache policy 2ndline || rpm -q 2ndline || 2ndline --version

2. No fixed release: DOWNGRADE to a release before 24.17.1.0 (Debian / Ubuntu)

apt-cache madison 2ndline sudo apt install 2ndline=<VERSION_BEFORE_24.17.1.0> sudo apt-mark hold 2ndline

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list 2ndline sudo dnf downgrade 2ndline-<VERSION_BEFORE_24.17.1.0> sudo dnf versionlock add 2ndline

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-43976?

2ndline: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-43976 being exploited?

CVE-2025-43976 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-43976 affect?

CVE-2025-43976 affects 2ndline. Severity is medium (CVSS 5.5). The com.enflick.android.tn2ndLine application through 24.17.1.0 for Android enables any installed application (with no permissions) to place phone calls without user interaction by sending a crafted intent via the com.enflick.android.TextNo

How urgent is CVE-2025-43976?

Priority 28/100. Public exploit reference

Software pages

Android vulnerabilities

References

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