8.4

CVE-2021-1905: Qualcomm Multiple Chipsets Use-After-Free Vulnerability

CVSS: 8.4v3.1HighKEVAnalyzed
Published 07-05-2021Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2021-1905 is a high (CVSS 8.4) Use After Free vulnerability in Qualcomm Multiple Chipsets. It is known to be exploited: CISA lists it, first on 03-11-2021. EPSS estimates a 1.54% chance of exploitation in the next 30 days, higher than 74.6% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
1.54%
0%100%
Low · 0.00 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-05-2021
    PublishedVulnerability first disclosed.
  2. 03-11-2021
    Added to CISA KEVQualcomm Multiple Chipsets Use-After-Free Vulnerability
  3. 03-05-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.54%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

0.00 pp

From 1.54% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.54%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
03-11-2021
Federal due date
03-05-2022

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2021-1905

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Qualcomm199 products
Qualcomm, inc.1 product
  • snapdragon auto, snapdragon compute, snapdragon connectivity, snapdragon consumer iot, snapdragon industrial iot, snapdragon mobile, snapdragon voice & music, snapdragon wearablesAPQ8009, APQ8009W, APQ8017, APQ8053, APQ8064AU, APQ8096AU, AQT1000, AR8031, AR8035, AR8151, CSRA6620, CSRA6640, FSM10055, FSM10056, MDM9206, MDM9607, MDM9626, MDM9628, MDM9650, MSM8909W, MSM8917, MSM8953, MSM8996AU, PM215, PM3003A, PM4125, PM4250, PM439, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM6350, PM640A, PM640L, PM640P, PM660, PM660A, PM660L, PM670, PM670A, PM670L, PM7150A, PM7150L, PM7250, PM7250B, PM8004, PM8005, PM8008, PM8009, PM8150, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350C, PM855, PM855A, PM855B, PM855L, PM855P, PM8909, PM8916, PM8937, PM8953, PM8998, PMC1000H, PMD9607, PMD9655, PME605, PMI632, PMI8937, PMI8952, PMI8998, PMK8002, PMK8003, PMK8350, PMM6155AU, PMM8155AU, PMM8195AU, PMM855AU, PMM8920AU, PMM8996AU, PMR525, PMR735A, PMR735B, PMW3100, PMX20, PMX24, PMX50, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT1000, QBT1500, QBT2000, QCA4020, QCA6174, QCA6174A, QCA ...[truncated*]

2 vendors · 200 products · Showing 200 of 397. Use Open JSON for the complete list.

References

2 links