CVE-2025-43977: The com.skt.prod.dialer application through 12.5.0 for Android enables any installed application (with no perm

Routine

MEDIUM 5.5DOWNGRADE

CVE-2025-43977 is a medium-severity flaw (CVSS 5.5) affecting com.skt.prod.dialer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The com.skt.prod.dialer application through 12.5.0 for Android enables any installed application (with no permissions) to place phone calls without user interaction by sending a crafted intent via the com.skt.prod.dialer.activities.outgoingcall.OutgoingCallInternalBroadcaster component.

Why this priority

No elevated risk signals yet

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 94%)
CISA exploited list	No
Weakness	CWE-862
Published	2025-07-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sktelecom

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

sktelecom com.skt.prod.dialer DOWNGRADE

Affected: 12.5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.5.0

1. Check installed version

apt-cache policy com.skt.prod.dialer || rpm -q com.skt.prod.dialer || com.skt.prod.dialer --version

2. No fixed release: DOWNGRADE to a release before 12.5.0 (Debian / Ubuntu)

apt-cache madison com.skt.prod.dialer sudo apt install com.skt.prod.dialer=<VERSION_BEFORE_12.5.0> sudo apt-mark hold com.skt.prod.dialer

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

dnf --showduplicates list com.skt.prod.dialer sudo dnf downgrade com.skt.prod.dialer-<VERSION_BEFORE_12.5.0> sudo dnf versionlock add com.skt.prod.dialer

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-2025-43977?

com.skt.prod.dialer: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-43977 being exploited?

CVE-2025-43977 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-2025-43977 affect?

CVE-2025-43977 affects com.skt.prod.dialer. Severity is medium (CVSS 5.5). The com.skt.prod.dialer application through 12.5.0 for Android enables any installed application (with no permissions) to place phone calls without user interaction by sending a crafted intent via the com.skt.prod.dialer.activities.outgoing

How urgent is CVE-2025-43977?

Priority 21/100. No elevated risk signals yet.

Software pages

Android vulnerabilities

References

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