How severe is CVE-2023-43535?

CVE-2023-43535 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-43535 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43535?

CVE-2023-43535 primarily affects Qualcomm Fastconnect 6700 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-2023-43535?

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-2023-43535 have an EU (EUVD) identifier?

Yes. CVE-2023-43535 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-47941.

When was CVE-2023-43535 published?

CVE-2023-43535 was published on 2024-02-06 and last updated on 2026-06-17.

CVE-2023-43535

CVE-2023-43535 is a high-severity vulnerability in Qualcomm Fastconnect 6700 Firmware with a CVSS 3.x base score of 8.4. 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-129.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-47941
Weakness: CWE-129
Affected product: Qualcomm Fastconnect 6700 Firmware
Published: 2024-02-06
Last modified: 2026-06-17

Description

Memory corruption when negative display IDs are sent as input while processing DISPLAYESCAPE event trigger.

Frequently asked questions

What is CVE-2023-43535?: Memory corruption when negative display IDs are sent as input while processing DISPLAYESCAPE event trigger.
How severe is CVE-2023-43535?: CVE-2023-43535 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-43535 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43535?: CVE-2023-43535 primarily affects Qualcomm Fastconnect 6700 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-2023-43535?: 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-2023-43535 have an EU (EUVD) identifier?: Yes. CVE-2023-43535 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-47941.
When was CVE-2023-43535 published?: CVE-2023-43535 was published on 2024-02-06 and last updated on 2026-06-17.

References

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

Affected products (13)

cpe:2.3:o:qualcomm:fastconnect_6700_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sc8380xp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_7c\+_gen_3_compute_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_8cx_gen_3_compute_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8830_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8835_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8840_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8845_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8845h_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Fastconnect 6700 Firmware

CVE-2025-27034 — Critical (CVSS 9.8): Memory corruption while selecting the PLMN from SOR failed list.
CVE-2025-21483 — Critical (CVSS 9.8): Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.
CVE-2024-45569 — Critical (CVSS 9.8): Memory corruption while parsing the ML IE due to invalid frame content.
CVE-2023-28582 — Critical (CVSS 9.8): Memory corruption in Data Modem while verifying hello-verify message during the DTLS handshake.
CVE-2023-33025 — Critical (CVSS 9.8): Memory corruption in Data Modem when a non-standard SDP body, during a VOLTE call.
CVE-2023-22388 — Critical (CVSS 9.8): Memory Corruption in Multi-mode Call Processor while processing bit mask API.

All CVEs affecting Qualcomm Fastconnect 6700 Firmware →

Other CWE-129 (Improper Validation of Array Index) vulnerabilities

CVE-2020-27485 — Critical (CVSS 9.9): Garmin Forerunner 235 before 8.20 is affected by: Array index error. The component is: ConnectIQ TVM. The attack vector…
CVE-2020-27483 — Critical (CVSS 9.9): Garmin Forerunner 235 before 8.20 is affected by: Array index error. The component is: ConnectIQ TVM. The attack vector…
CVE-2026-21413 — Critical (CVSS 9.8): A heap-based buffer overflow vulnerability exists in the lossless_jpeg_load_raw functionality of LibRaw Commit 0b56545…
CVE-2025-27034 — Critical (CVSS 9.8): Memory corruption while selecting the PLMN from SOR failed list.
CVE-2025-3357 — Critical (CVSS 9.8): IBM Tivoli Monitoring 6.3.0.7 through 6.3.0.7 Service Pack 19 could allow a remote attacker to execute arbitrary code…
CVE-2024-45569 — Critical (CVSS 9.8): Memory corruption while parsing the ML IE due to invalid frame content.

Browse all CWE-129 (Improper Validation of Array Index) vulnerabilities →