Is CVE-2021-1905 actively exploited?

Yes. KEV Intelligence tracks CVE-2021-1905 as a known exploited vulnerability. Confidence is confirmed.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2021-1905. Our sensors continue to monitor for activity targeting this CVE.

Yes. CVE-2021-1905 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2021-1905

Q: Which versions are affected?

CVE-2021-1905 affects Qualcomm, Inc. Snapdragon Auto and 7 other products. Reported affected version: APQ8009, 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*].

Snapdragon Auto

Qualcomm / Snapdragon Auto · APQ8009, 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*]

View live feed Monitor via API Watch CVE

Severity: CVSS 8.4 · High
Confidence: Confirmed
Exploit status: Exploited in the wild
EPSS: 1.2%
First observed: —
Last observed: —

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2021-1905 is an unauthenticated vulnerability affecting Qualcomm, Inc. Snapdragon Auto and 7 other products. Possible use after free due to improper handling of memory mapping of multiple processes simultaneously....

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.

Who is affected?

Qualcomm, Inc. / Snapdragon Auto apq8009, 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*].

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Possible use after free due to improper handling of memory mapping of multiple processes simultaneously

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

Vendor Product Affected Status

Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables APQ8009, 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*] Affected

Published: 07 May 2021
Exploitation Reported: 03 Nov 2021
Attack vector: Local
Complexity: Low
Privileges: None
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2021-1905
qualcomm.com/company/product-security/bulletins/may-2021-... qualcomm.com · CVE Record https://www.qualcomm.com/company/product-security/bulletins/may-2021-...

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 03 Nov 2021

Independent exploitation attestation added to the KEV Intelligence record.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

Learn about Pro API access

Source	Added
CISA First	2021-11-03 00:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

8.4 High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.2%

Weaknesses

Use After Free CWE-416

Timeline

From disclosure to observed exploitation

03 Nov 2021
Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
07 May 2021
CVE published

Vulnerability disclosed publicly
08 Dec 2020
CVE ID reserved

Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2021-1905

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2021-1905",
  "confidence": "Confirmed",
  "cvss_score": 8.4,
  "cvss_estimated": false,
  "epss_score": 0.0115,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

Early warning alerts

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