How severe is CVE-2023-20702?

CVE-2023-20702 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-20702 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20702?

CVE-2023-20702 primarily affects Mediatek Nr15. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-20702?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-20702 published?

CVE-2023-20702 was published on 2023-11-06 and last updated on 2026-06-17.

CVE-2023-20702

CVE-2023-20702 is a high-severity vulnerability in Mediatek Nr15 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mediatek Nr15
Published: 2023-11-06
Last modified: 2026-06-17

Description

In 5G NRLC, there is a possible invalid memory access due to lack of error handling. This could lead to remote denial of service, if UE received invalid 1-byte rlc sdu, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00921261; Issue ID: MOLY01128895.

Frequently asked questions

What is CVE-2023-20702?: In 5G NRLC, there is a possible invalid memory access due to lack of error handling. This could lead to remote denial of service, if UE received invalid 1-byte rlc sdu, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00921261; Issue ID: MOLY01128895.
How severe is CVE-2023-20702?: CVE-2023-20702 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-20702 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20702?: CVE-2023-20702 primarily affects Mediatek Nr15. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-20702?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-20702 published?: CVE-2023-20702 was published on 2023-11-06 and last updated on 2026-06-17.

References

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

Affected products (3)

cpe:2.3:o:mediatek:nr15:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:nr16:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:nr17:-:*:*:*:*:*:*:*

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