CVE-2023-21353Network attack vector

Remote information disclosure via unchecked NFA read

Published Oct 30, 2023 · Updated Sep 6, 2024

An out-of-bounds read in NFA in Google Android 14 allows remote attackers to disclose memory contents without user interaction. NFA performs a memory read without the required bounds check, allowing data beyond the intended buffer to be returned. No execution privileges or user interaction are required, and the documented impact is limited to information disclosure.

CVSS severity7.5
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in NFA in Google Android 14 allows remote attackers to disclose memory contents without user interaction. NFA performs a memory read without the required bounds check, allowing data beyond the intended buffer to be returned. No execution privileges or user interaction are required, and the documented impact is limited to information disclosure.

The record

CVE
CVE-2023-21353
Published
Oct 30, 2023
Updated
Sep 6, 2024
Vendor
Google
Product
Android
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google · Androidversion=14

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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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