How severe is CVE-2024-21453?

CVE-2024-21453 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-2024-21453 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21453?

CVE-2024-21453 primarily affects Qualcomm C-v2x 9150 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21453?

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-2024-21453 have an EU (EUVD) identifier?

Yes. CVE-2024-21453 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19162.

When was CVE-2024-21453 published?

CVE-2024-21453 was published on 2024-04-01 and last updated on 2026-06-17.

CVE-2024-21453

CVE-2024-21453 is a high-severity vulnerability in Qualcomm C-v2x 9150 Firmware 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. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19162
Weakness: CWE-20
Affected product: Qualcomm C-v2x 9150 Firmware
Published: 2024-04-01
Last modified: 2026-06-17

Description

Transient DOS while decoding message of size that exceeds the available system memory.

Frequently asked questions

What is CVE-2024-21453?: Transient DOS while decoding message of size that exceeds the available system memory.
How severe is CVE-2024-21453?: CVE-2024-21453 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-2024-21453 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21453?: CVE-2024-21453 primarily affects Qualcomm C-v2x 9150 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21453?: 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-2024-21453 have an EU (EUVD) identifier?: Yes. CVE-2024-21453 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19162.
When was CVE-2024-21453 published?: CVE-2024-21453 was published on 2024-04-01 and last updated on 2026-06-17.

References

https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2024-bulletin.html

Affected products (13)

cpe:2.3:o:qualcomm:c-v2x_9150_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs410_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs610_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:video_collaboration_vc1_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:video_collaboration_vc3_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_auto_5g_modem-rf_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_auto_4g_modem_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9341_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3980_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8815_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm C-v2x 9150 Firmware

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