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CVE-2022-20454: In fdt_next_tag of fdt.c, 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.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12L Android-13Android ID: A-242096164

mediumCVSS 6.7CVE-2022-20454

CSIRTS triage

vendor: Androidproduct: AndroidPrivilege escalationMemory corruptionaffected: Android-10, Android-11, Android-12 and later
What
fdt.c fdt_next_tag() function contains an integer overflow leading to out-of-bounds write.
Who is affected
Android devices running affected versions are at risk for privilege escalation.
Urgency
Medium severity (CVSS 6.7) with local execution privilege required but system-level impact.
Action
Apply the Android security patch addressing the integer overflow in fdt_next_tag().

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 6.7
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-20454

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2022-20454coverage & exploitation statusNVD · CVE.org

Recent advisories for In fdt_next_tag of

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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