CVE-2023-20676: In wlan, there is a possible out of bounds read due to a missing bounds check

Routine

MEDIUM 4.4WATCHLISTMITIGATEMITIGATEMITIGATE

CVE-2023-20676 is a medium-severity flaw (CVSS 4.4) affecting android, yocto, linux kernel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In wlan, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588569; Issue ID: ALPS07628518.

Why this priority

On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.4 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-125
Published	2023-04-06
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2023-04-06 18:15 UTCPublished CVE record published
2026-06-17 05:30 UTCUpdated Record last modified

google android MITIGATE

Affected: 11.0 · 12.0 · 13.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.0

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.

yoctoproject yocto MITIGATE

Affected: 3.1 · 3.3 · 4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1

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.

linux linux kernel MITIGATE

Affected: 4.19

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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.

Downgrade not recommended

This is a core system component: downgrading can break the OS. Apply the distro update or the vendor mitigation.

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-2023-20676?

android: mitigate or apply the listed mitigation; yocto: mitigate or apply the listed mitigation; linux kernel: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-20676 being exploited?

CVE-2023-20676 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-2023-20676 affect?

CVE-2023-20676 affects android, yocto, linux kernel. Severity is medium (CVSS 4.4). In wlan, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588569;

How urgent is CVE-2023-20676?

Priority 21/100. On your watchlist

Software pages

Linux kernel vulnerabilities · Android vulnerabilities

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References

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