HOMEVULNERABILITIESCVE-2026-20435
MEDIUM

CVE-2026-20435

CWE-522Published: March 2, 2026· Updated: Mar 3, 2026

4.6
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.9th

Official Description

In preloader, there is a possible read of device unique identifiers due to a logic error. This could lead to local information disclosure, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10607099; Issue ID: MSV-6118.

NVD Source

Technical Analysis

CVE-2026-20435 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 4.6.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

Google1 product
android
linuxfoundation1 product
yocto
mediatek35 products
mt2737mt6739mt6761mt6765mt6768mt6781mt6789mt6813mt6833mt6853mt6855mt6877+23 more
openwrt1 product
openwrt
rdkcentral1 product
rdk-b
zephyrproject1 product
zephyr
Source: NVD CPE · 44 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/March-2026

All References (1)

→
https://corp.mediatek.com/product-security-bulletin/March-2026Vendor Advisory

Quick Facts

CVE IDCVE-2026-20435
CVSS Score4.6 / 10
SeverityMEDIUM
WeaknessCWE-522
CISA KEVNo
EPSS (30d)0.02%
Affected6 vendors
PublishedMar 2, 2026

Related CVEs (CWE-522)

CVE-2026-29128
10.0
CVE-2026-46440
9.1
CVE-2026-32913
9.1
CVE-2026-32171
8.8
CVE-2026-9650
8.7
CVE-2026-23658
8.6

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-20435 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.COM. CVE data is provided under the NVD usage policy.
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