How severe is CVE-2018-11821?

CVE-2018-11821 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11821 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11821?

CVE-2018-11821 primarily affects Qualcomm Ipq8074 Firmware. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11821?

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-2018-11821 published?

CVE-2018-11821 was published on 2018-10-26 and last updated on 2026-06-17.

CVE-2018-11821

CVE-2018-11821 is a high-severity vulnerability in Qualcomm Ipq8074 Firmware with a CVSS 3.x base score of 7.8. 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Qualcomm Ipq8074 Firmware
Published: 2018-10-26
Last modified: 2026-06-17

Description

Possible integer overflow may happen in WLAN during memory allocation in Snapdragon Mobile, Snapdragon Wear in version IPQ8074, MDM9206, MDM9607, MDM9650, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 650/52, SD 835, SD 845, SD 850, SDA660, SDM630, SDM632, SDM636, SDM660, SDM710, Snapdragon_High_Med_2016

Frequently asked questions

What is CVE-2018-11821?: Possible integer overflow may happen in WLAN during memory allocation in Snapdragon Mobile, Snapdragon Wear in version IPQ8074, MDM9206, MDM9607, MDM9650, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 650/52, SD 835, SD 845, SD 850, SDA660, SDM630, SDM632, SDM636, SDM660, SDM710, Snapdragon_High_Med_2016
How severe is CVE-2018-11821?: CVE-2018-11821 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11821 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11821?: CVE-2018-11821 primarily affects Qualcomm Ipq8074 Firmware. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11821?: 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-2018-11821 published?: CVE-2018-11821 was published on 2018-10-26 and last updated on 2026-06-17.

References

Affected products (21)

cpe:2.3:o:qualcomm:ipq8074_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9206_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9607_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_425_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_427_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_430_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_435_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_450_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_625_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_650_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_652_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_835_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_845_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_850_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sda660_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm630_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm632_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm636_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm660_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm710_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Ipq8074 Firmware

CVE-2024-21473 — Critical (CVSS 9.8): Memory corruption while redirecting log file to any file location with any file name.
CVE-2022-25748 — Critical (CVSS 9.8): Memory corruption in WLAN due to integer overflow to buffer overflow while parsing GTK frames. in Snapdragon Auto,…
CVE-2021-35104 — Critical (CVSS 9.8): Possible buffer overflow due to improper parsing of headers while playing the FLAC audio clip in Snapdragon Auto,…
CVE-2021-30351 — Critical (CVSS 9.8): An out of bound memory access can occur due to improper validation of number of frames being passed during music…
CVE-2021-1976 — Critical (CVSS 9.8): A use after free can occur due to improper validation of P2P device address in PD Request frame in Snapdragon Auto,…
CVE-2021-1972 — Critical (CVSS 9.8): Possible buffer overflow due to improper validation of device types during P2P search in Snapdragon Auto, Snapdragon…

All CVEs affecting Qualcomm Ipq8074 Firmware →

Other CWE-190 (Integer Overflow or Wraparound) vulnerabilities

CVE-2026-4689 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was…
CVE-2026-24814 — Critical (CVSS 10.0): Integer Overflow or Wraparound vulnerability in swoole swoole-src (thirdparty/hiredis modules). This vulnerability is…
CVE-2025-64721 — Critical (CVSS 10.0): Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. In versions…
CVE-2015-5108 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2015-5097 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2013-2555 — Critical (CVSS 10.0): Integer overflow in Adobe Flash Player before 10.3.183.75 and 11.x before 11.7.700.169 on Windows and Mac OS X, before…

Browse all CWE-190 (Integer Overflow or Wraparound) vulnerabilities →