How severe is CVE-2023-43511?

CVE-2023-43511 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-2023-43511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43511?

CVE-2023-43511 primarily affects Qualcomm 315 5g Iot Modem Firmware. In total, 356 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-43511?

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-2023-43511 have an EU (EUVD) identifier?

Yes. CVE-2023-43511 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-47917.

When was CVE-2023-43511 published?

CVE-2023-43511 was published on 2024-01-02 and last updated on 2026-06-17.

CVE-2023-43511

CVE-2023-43511 is a high-severity vulnerability in Qualcomm 315 5g Iot Modem 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-835.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-47917
Weakness: CWE-835
Affected product: Qualcomm 315 5g Iot Modem Firmware
Published: 2024-01-02
Last modified: 2026-06-17

Description

Transient DOS while parsing IPv6 extension header when WLAN firmware receives an IPv6 packet that contains `IPPROTO_NONE` as the next header.

Frequently asked questions

What is CVE-2023-43511?: Transient DOS while parsing IPv6 extension header when WLAN firmware receives an IPv6 packet that contains `IPPROTO_NONE` as the next header.
How severe is CVE-2023-43511?: CVE-2023-43511 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-2023-43511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43511?: CVE-2023-43511 primarily affects Qualcomm 315 5g Iot Modem Firmware. In total, 356 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-43511?: 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-2023-43511 have an EU (EUVD) identifier?: Yes. CVE-2023-43511 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-47917.
When was CVE-2023-43511 published?: CVE-2023-43511 was published on 2024-01-02 and last updated on 2026-06-17.

References

https://www.qualcomm.com/company/product-security/bulletins/january-2024-bulletin

Affected products (356)

cpe:2.3:o:qualcomm:315_5g_iot_modem_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:9206_lte_modem_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:apq8017_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:apq8064au_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:apq8092_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:apq8094_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ar8031_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ar9380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csr8811_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csra6620_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csra6640_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csrb31024_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6700_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:flight_rb5_5g_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:home_hub_100_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:immersive_home_214_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:immersive_home_216_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:immersive_home_316_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:immersive_home_318_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:immersive_home_3210_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:immersive_home_326_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq4018_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq4028_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq4029_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq5010_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq5028_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq5332_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq6000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq6010_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq6018_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq6028_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8064_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8065_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8068_firmware:-:*:*:*:*:*:*:*

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