CVE-2023-29739Public exploit

Unauthorized alarm creation via exposed ApiCalls component

Published May 30, 2023 · Updated Jan 14, 2025

Privilege escalation in Alarm Clock for Heavy Sleepers 5.3.2 allows attackers to create alarms through a crafted Android broadcast. The proof of concept repeatedly sends explicit SET_ALARM broadcasts with attacker-chosen time, message, and day values to the ApiCalls component. A malicious app installed on the Android device can alter alarm behavior without user interaction; broader privilege gains are not documented.

CVSS severity9.8
Critical
EPSS probability1.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Alarm Clock for Heavy Sleepers 5.3.2 allows attackers to create alarms through a crafted Android broadcast. The proof of concept repeatedly sends explicit SET_ALARM broadcasts with attacker-chosen time, message, and day values to the ApiCalls component. A malicious app installed on the Android device can alter alarm behavior without user interaction; broader privilege gains are not documented.

The record

CVE
CVE-2023-29739
Published
May 30, 2023
Updated
Jan 14, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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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

No sourced classifications are available.

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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