CVE-2024-20100: In wlan driver, there is a possible out of bounds write due to improper input validation

Q: How do I fix CVE-2024-20100?

iot yocto: downgrade or apply the listed mitigation; software development kit: upgrade to newer than 3.3; android: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2024-20100 being exploited?

CVE-2024-20100 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-20100 affect?

CVE-2024-20100 affects iot yocto, software development kit, android. Severity is critical (CVSS 9.8). In wlan driver, there is a possible out of bounds write due to improper input validation. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: AL

Q: How urgent is CVE-2024-20100?

Priority 46/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEDOWNGRADEUPGRADEMITIGATE

CVE-2024-20100 is a critical-severity flaw (CVSS 9.8) affecting iot yocto, software development kit, android. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In wlan driver, there is a possible out of bounds write due to improper input validation. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08998449; Issue ID: MSV-1603.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-787
Published	2024-10-07
Last modified	2026-06-17

Publisher (CNA): MediaTek, Inc. · Vendor: google · mediatek

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-10-07 03:15 UTCPublished CVE record published
2026-06-17 07:05 UTCUpdated Record last modified

mediatek iot yocto DOWNGRADE

Affected: 24.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 24.0

1. Check installed version

apt-cache policy iot-yocto || rpm -q iot-yocto || iot-yocto --version

2. No fixed release: DOWNGRADE to a release before 24.0 (Debian / Ubuntu)

apt-cache madison iot-yocto sudo apt install iot-yocto=<VERSION_BEFORE_24.0> sudo apt-mark hold iot-yocto

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list iot-yocto sudo dnf downgrade iot-yocto-<VERSION_BEFORE_24.0> sudo dnf versionlock add iot-yocto

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

mediatek software development kit UPGRADE

Affected: <= 3.3

Fixed in: newer than 3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy software-development-kit || rpm -q software-development-kit || software-development-kit --version

2. UPGRADE to newer than 3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade software-development-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade software-development-kit

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

google android MITIGATE

Affected: 12.0 · 13.0 · 14.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-20100?

iot yocto: downgrade or apply the listed mitigation; software development kit: upgrade to newer than 3.3; android: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-20100 being exploited?

CVE-2024-20100 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-20100 affect?

CVE-2024-20100 affects iot yocto, software development kit, android. Severity is critical (CVSS 9.8). In wlan driver, there is a possible out of bounds write due to improper input validation. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: AL

How urgent is CVE-2024-20100?

Priority 46/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities

Related CVEs

CVE-2025-20721 HIGH 7.8 DOWNGRADE MITIGATE In imgsensor, there is a possible out of bounds write due to a missing bounds check
CVE-2024-20055 MEDIUM 6.3 DOWNGRADE DOWNGRADE In imgsys, there is a possible information disclosure due to a missing bounds check
CVE-2023-32829 MEDIUM 6.7 DOWNGRADE DOWNGRADE In apusys, there is a possible out of bounds write due to an integer overflow
CVE-2023-32828 MEDIUM 6.7 DOWNGRADE MITIGATE In vpu, there is a possible out of bounds write due to an integer overflow
CVE-2023-32820 HIGH 7.5 DOWNGRADE DOWNGRADE In wlan firmware, there is a possible firmware assertion due to improper input handling

References

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