How severe is CVE-2023-20847?

CVE-2023-20847 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-20847 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20847?

CVE-2023-20847 primarily affects Mediatek Iot Yocto. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-20847?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-20847 published?

CVE-2023-20847 was published on 2023-09-04 and last updated on 2026-06-17.

CVE-2023-20847

CVE-2023-20847 is a medium-severity vulnerability in Mediatek Iot Yocto with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Mediatek Iot Yocto
Published: 2023-09-04
Last modified: 2026-06-17

Description

In imgsys_cmdq, there is a possible out of bounds read due to a missing valid range checking. This could lead to local denial of service with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS07354025; Issue ID: ALPS07340108.

Frequently asked questions

What is CVE-2023-20847?: In imgsys_cmdq, there is a possible out of bounds read due to a missing valid range checking. This could lead to local denial of service with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS07354025; Issue ID: ALPS07340108.
How severe is CVE-2023-20847?: CVE-2023-20847 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-20847 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20847?: CVE-2023-20847 primarily affects Mediatek Iot Yocto. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-20847?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-20847 published?: CVE-2023-20847 was published on 2023-09-04 and last updated on 2026-06-17.

References

https://corp.mediatek.com/product-security-bulletin/September-2023

Affected products (5)

cpe:2.3:a:linuxfoundation:yocto:4.0:*:*:*:*:*:*:*
cpe:2.3:a:mediatek:iot_yocto:23.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:-:*:*:*:*:*:*

More vulnerabilities in Mediatek Iot Yocto

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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