CVE-2023-29751Public exploit

Persistent app crash via oversized preference bundles

Published Jun 9, 2023 · Updated Jan 6, 2025

Denial of service in Yandex Navigator 6.60 for Android allows local users to persistently crash the app through a malicious app. The exposed ru.yandex.common.clid.ClidService accepts an update_preferences intent and stores attacker-supplied bundles in SharedPreferences without caller validation or size limits. Repeated oversized keys and values exhaust memory when the preferences load at startup, leaving navigation persistently unavailable after restarts.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Yandex Navigator 6.60 for Android allows local users to persistently crash the app through a malicious app. The exposed ru.yandex.common.clid.ClidService accepts an update_preferences intent and stores attacker-supplied bundles in SharedPreferences without caller validation or size limits. Repeated oversized keys and values exhaust memory when the preferences load at startup, leaving navigation persistently unavailable after restarts.

The record

CVE
CVE-2023-29751
Published
Jun 9, 2023
Updated
Jan 6, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-346, T1642
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 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 privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-346Origin Validation Error
T1642Endpoint Denial of Service

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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