HOMEVULNERABILITIESCVE-2023-20663
MEDIUM

CVE-2023-20663

CWE-190Published: April 6, 2023· Updated: Jun 17, 2026

6.7
CVSS v3.1

Official Description

In wlan, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07560741; Issue ID: ALPS07560741.

NVD Source

Technical Analysis

CVE-2023-20663 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.7.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Google1 product(s)
android
Linux1 product(s)
linux kernel
mediatek26 product(s)
mt5221mt6879mt6895mt6983mt7902mt7921mt8167smt8168mt8175mt8362amt8365mt8385+14
yoctoproject1 product(s)
yocto
Source: NVD CPE · 32 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://corp.mediatek.com/product-security-bulletin/April-2023
ADVISORYhttps://corp.mediatek.com/product-security-bulletin/April-2023

All References (2)

→
https://corp.mediatek.com/product-security-bulletin/April-2023Vendor Advisory
→
https://corp.mediatek.com/product-security-bulletin/April-2023Vendor Advisory

Quick Facts

CVE IDCVE-2023-20663
CVSS Score6.7 / 10
SeverityMEDIUM
WeaknessCWE-190
CISA KEVNo
Affected4 vendor(s)
PublishedApr 6, 2023

Related CVEs (CWE-190)

CVE-2012-5835
10.0
CVE-2013-2555
10.0
CVE-2010-1233
10.0
CVE-2010-3254
10.0
CVE-2012-5143
10.0
CVE-2015-5097
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-20663 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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