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ExploitedIn CISA KEVFix available

CVE-2023-21237

Exploitation confirmed. First attested on 2024-03-05 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2023-06-28
  • WeaknessCWE-200

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 applyRemoteView of NotificationContentInflater.java, there is a possible way to hide foreground service notification due to misleading or insufficient UI. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-251586912

Timeline

dates in UTC
  1. 2023-06-2818:15CVE publishedNVD
  2. 2024-03-05Added to the CISA KEV catalogCISA KEV
  3. 2024-03-05Listed as exploited by GCVEGCVE
  4. 2024-03-05Exploitation first reportedCISA KEV
  5. 2024-03-0505:00SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-04 03:37 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-2023-21237?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-21237?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP
Google android
BranchAffectedFixed in
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-13no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-06-28

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/baseAndroidfrom 13-next:0 · fixed in 13-next:2023-06-01
  • platform/frameworks/baseAndroidfrom 13:0 · fixed in 13:2023-06-01

Full record on NVD

Fix

  1. CISA’s required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.due 2024-03-26

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2024-03-05
Patch Due Date
2024-03-26
Ransomware Use
Unknown
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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
2023-06-28
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-qhm9-gg74-g6m6

Frequently asked questions

What is CVE-2023-21237?

In applyRemoteView of NotificationContentInflater.java, there is a possible way to hide foreground service notification due to misleading or insufficient UI. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-251586912

Is CVE-2023-21237 actively exploited?

Yes. CVE-2023-21237 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2024-03-26.

What is the CVSS score for CVE-2023-21237?

CVE-2023-21237 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.

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Sources for this record