CVE-2022-20165

Local information disclosure via ASN.1 bounds check

Published Jun 15, 2022 · Updated Aug 3, 2024

Out-of-bounds read in Google Titan M allows local users with System execution privileges to disclose memory without user interaction. The asn1_parse routine in asn1.c applies an incorrect bounds check, allowing ASN.1 input to make the parser read beyond its valid buffer. Exploitation requires local System execution privileges and exposes adjacent memory; no write access or service interruption is reported.

CVSS severity4.4
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Google Titan M allows local users with System execution privileges to disclose memory without user interaction. The asn1_parse routine in asn1.c applies an incorrect bounds check, allowing ASN.1 input to make the parser read beyond its valid buffer. Exploitation requires local System execution privileges and exposes adjacent memory; no write access or service interruption is reported.

The record

CVE
CVE-2022-20165
Published
Jun 15, 2022
Updated
Aug 3, 2024
Vendor
Google
Product
Titan M
Classifications
CWE-125, T1533
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google · Titan Mversion=Android kernel

Published CVSS scores

4.4NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.9NIST National Vulnerability DatabaseAV:L/AC:L/Au:N/C:C/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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1533Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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