Skip to main content
Public proof of conceptFix available

CVE-2023-21118

A public proof of concept exists; no exploitation attested.

  • Published2023-05-15
  • WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In unflattenString8 of Sensor.cpp, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-269014004

Timeline

dates in UTC
  1. 2023-05-1522:15CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-21118?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-21118?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Google android
BranchAffectedFixed in
11.0= 11.0no fix published
12.0= 12.0no fix published
12.1= 12.1no fix published
13.0= 13.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As google_android, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Android
    Affected
    • = Android-11 Android-12 Android-12L Android-13no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-05-15

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • platform/frameworks/nativeAndroidfrom 11:0 · fixed in 11:2023-05-01
  • platform/frameworks/nativeAndroidfrom 12:0 · fixed in 12:2023-05-01
  • platform/frameworks/nativeAndroidfrom 12L:0 · fixed in 12L:2023-05-01
  • platform/frameworks/nativeAndroidfrom 13-next:0 · fixed in 13-next:2023-05-01
  • platform/frameworks/nativeAndroidfrom 13:0 · fixed in 13:2023-05-01

Full record on NVD

Fix

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifiedTrinadh465/frameworks_native_AOSP-10_r33_CVE-2023-21118Satheesh575555/frameworks_native_AOSP10_r33_CVE-2023-21118
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published
2023-05-15
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-qwqj-7966-cvmw

Frequently asked questions

What is CVE-2023-21118?

In unflattenString8 of Sensor.cpp, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-269014004

Is CVE-2023-21118 actively exploited?

Active exploitation of CVE-2023-21118 has not been confirmed. Its EPSS score was 0.2% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-21118?

CVE-2023-21118 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Running platform/frameworks/native? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, October 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record