How severe is CVE-2019-2317?

CVE-2019-2317 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-2317 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-2317?

CVE-2019-2317 primarily affects Qualcomm Msm8905 Firmware. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-2317?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-2317 published?

CVE-2019-2317 was published on 2020-03-05 and last updated on 2026-06-17.

CVE-2019-2317

CVE-2019-2317 is a critical-severity vulnerability in Qualcomm Msm8905 Firmware with a CVSS 3.x base score of 9.8. 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-330.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: Qualcomm Msm8905 Firmware
Published: 2020-03-05
Last modified: 2026-06-17

Description

The secret key used to make the Initial Sequence Number in the TCP SYN packet could be brute forced and therefore can be predicted in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in MSM8905, MSM8909, MSM8917, MSM8920, MSM8937, MSM8940, MSM8953, Nicobar, QCM2150, QM215, SC8180X, SDM429, SDM439, SDM450, SDM632, SDX24, SDX55, SM6150, SM7150, SM8150

Frequently asked questions

What is CVE-2019-2317?: The secret key used to make the Initial Sequence Number in the TCP SYN packet could be brute forced and therefore can be predicted in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in MSM8905, MSM8909, MSM8917, MSM8920, MSM8937, MSM8940, MSM8953, Nicobar, QCM2150, QM215, SC8180X, SDM429, SDM439, SDM450, SDM632, SDX24, SDX55, SM6150, SM7150, SM8150
How severe is CVE-2019-2317?: CVE-2019-2317 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-2317 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-2317?: CVE-2019-2317 primarily affects Qualcomm Msm8905 Firmware. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-2317?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-2317 published?: CVE-2019-2317 was published on 2020-03-05 and last updated on 2026-06-17.

References

https://www.qualcomm.com/company/product-security/bulletins/march-2020-bulletin

Affected products (20)

cpe:2.3:o:qualcomm:msm8905_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8909_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8917_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8920_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8937_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8940_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8953_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:nicobar_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm2150_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qm215_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sc8180x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm429_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm439_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm450_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm632_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdx24_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm6150_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm7150_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8150_firmware:-:*:*:*:*:*:*:*

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