How severe is CVE-2024-20039?

CVE-2024-20039 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-20039 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20039?

CVE-2024-20039 primarily affects Mediatek Lr12a. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-20039?

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.

Does CVE-2024-20039 have an EU (EUVD) identifier?

Yes. CVE-2024-20039 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17754.

When was CVE-2024-20039 published?

CVE-2024-20039 was published on 2024-04-01 and last updated on 2026-06-17.

CVE-2024-20039

CVE-2024-20039 is a high-severity vulnerability in Mediatek Lr12a with a CVSS 3.x base score of 8.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-17754
Weakness: CWE-787
Affected product: Mediatek Lr12a
Published: 2024-04-01
Last modified: 2026-06-17

Description

In modem protocol, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01240012; Issue ID: MSV-1215.

Frequently asked questions

What is CVE-2024-20039?: In modem protocol, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01240012; Issue ID: MSV-1215.
How severe is CVE-2024-20039?: CVE-2024-20039 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-20039 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20039?: CVE-2024-20039 primarily affects Mediatek Lr12a. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-20039?: 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.
Does CVE-2024-20039 have an EU (EUVD) identifier?: Yes. CVE-2024-20039 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17754.
When was CVE-2024-20039 published?: CVE-2024-20039 was published on 2024-04-01 and last updated on 2026-06-17.

References

https://corp.mediatek.com/product-security-bulletin/April-2024

Affected products (5)

cpe:2.3:o:mediatek:lr12a:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:lr13:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:nr15:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:nr16:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:nr17:-:*:*:*:*:*:*:*

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