CVE-2023-27647: An issue found in DUALSPACE Lock Master v.2.2.4 allows a local attacker to cause a denial of service or gain s

This month

HIGH 7.1DOWNGRADE

CVE-2023-27647 is a high-severity flaw (CVSS 7.1) affecting lock master. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue found in DUALSPACE Lock Master v.2.2.4 allows a local attacker to cause a denial of service or gain sensitive information via the com.ludashi.superlock.util.pref.SharedPrefProviderEntryMethod: insert of the android.net.Uri.insert method.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.1 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 45%)
CISA exploited list	No
Weakness	CWE-276
Published	2023-04-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dualspace

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

Am I affected?

Timeline

2023-04-14 20:15 UTCPublished CVE record published
2026-06-17 05:45 UTCUpdated Record last modified

dualspace lock master DOWNGRADE

Affected: 2.2.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.4

1. Check installed version

apt-cache policy lock-master || rpm -q lock-master || lock-master --version

2. No fixed release: DOWNGRADE to a release before 2.2.4 (Debian / Ubuntu)

apt-cache madison lock-master sudo apt install lock-master=<VERSION_BEFORE_2.2.4> sudo apt-mark hold lock-master

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

dnf --showduplicates list lock-master sudo dnf downgrade lock-master-<VERSION_BEFORE_2.2.4> sudo dnf versionlock add lock-master

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-2023-27647?

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

Is CVE-2023-27647 being exploited?

CVE-2023-27647 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-2023-27647 affect?

CVE-2023-27647 affects lock master. Severity is high (CVSS 7.1). An issue found in DUALSPACE Lock Master v.2.2.4 allows a local attacker to cause a denial of service or gain sensitive information via the com.ludashi.superlock.util.pref.SharedPrefProviderEntryMethod: insert of the android.net.Uri.insert m

How urgent is CVE-2023-27647?

Priority 44/100. High severity; Public exploit reference

Software pages

Android vulnerabilities

Related CVEs

CVE-2023-29733 HIGH 7.8 DOWNGRADE The Lock Master app 2.2.4 for Android allows unauthorized apps to modify the values in its SharedPreference fi

References

← Back to latest CVEs