How severe is CVE-2023-20835?

CVE-2023-20835 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-20835 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-2023-20835?

CVE-2023-20835 primarily affects Mediatek Iot Yocto. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-20835?

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

When was CVE-2023-20835 published?

CVE-2023-20835 was published on 2023-09-04 and last updated on 2026-06-17.

CVE-2023-20835

CVE-2023-20835 is a medium-severity vulnerability in Mediatek Iot Yocto with a CVSS 3.x base score of 6.4. 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-362.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Mediatek Iot Yocto
Published: 2023-09-04
Last modified: 2026-06-17

Description

In camsys, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07341261; Issue ID: ALPS07326570.

Frequently asked questions

What is CVE-2023-20835?: In camsys, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07341261; Issue ID: ALPS07326570.
How severe is CVE-2023-20835?: CVE-2023-20835 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-20835 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-2023-20835?: CVE-2023-20835 primarily affects Mediatek Iot Yocto. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-20835?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-20835 published?: CVE-2023-20835 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 (4)

cpe:2.3:a:linuxfoundation:yocto:4.0:*:*:*:*:*:*:*
cpe:2.3:a:mediatek:iot_yocto:23.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*

More vulnerabilities in Mediatek Iot Yocto

CVE-2024-20100 — 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…
CVE-2025-20721 — High (CVSS 7.8): In imgsensor, there is a possible out of bounds write due to a missing bounds check. This could lead to local…
CVE-2023-32820 — High (CVSS 7.5): In wlan firmware, there is a possible firmware assertion due to improper input handling. This could lead to remote…
CVE-2023-32829 — Medium (CVSS 6.7): In apusys, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of…
CVE-2023-32828 — Medium (CVSS 6.7): In vpu, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of…
CVE-2023-32811 — Medium (CVSS 6.7): In connectivity system driver, there is a possible out of bounds write due to improper input validation. This could…

All CVEs affecting Mediatek Iot Yocto →

Other CWE-362 (Race Condition) vulnerabilities

CVE-2022-27626 — Critical (CVSS 10.0): A vulnerability regarding concurrent execution using shared resource with improper synchronization ('Race Condition')…
CVE-2015-8556 — Critical (CVSS 10.0): Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1.
CVE-2014-0703 — Critical (CVSS 10.0): Cisco Wireless LAN Controller (WLC) devices 7.4 before 7.4.110.0 distribute Aironet IOS software with a race condition…
CVE-2010-1228 — Critical (CVSS 10.0): Multiple race conditions in the sandbox infrastructure in Google Chrome before 4.1.249.1036 have unspecified impact and…
CVE-2008-6598 — Critical (CVSS 10.0): Multiple race conditions in WANPIPE before 3.3.6 have unknown impact and attack vectors related to "bri restart logic."
CVE-2026-46137 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential…

Browse all CWE-362 (Race Condition) vulnerabilities →