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NVD / CVE Program· CNA qualcomm

CVE-2021-35098: Improper validation of session id in PCM routing process can lead to memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon…

MediumCVSS 6.7 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.15% (FIRST EPSS).
  • Someone with local access to the system can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Improper validation of session id in PCM routing process can lead to memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Published
Jun 14, 2022
Updated
Jun 16, 2026
EPSS
0.1% · 4th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
6.7
CNA · qualcomm
6.7
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-35098

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
qualcommapq8053 firmware
qualcommapq8053
qualcommapq8096au firmware
qualcommapq8096au
qualcommaqt1000 firmware
qualcommaqt1000
qualcommar8031 firmware
qualcommar8031
qualcommcsra6620 firmware
qualcommcsra6620
qualcommcsra6640 firmware
qualcommcsra6640

and 160 more

Versions reported by the vendor

Affected version ranges reported by the assigning authority (qualcomm). Independent of NVD's CPE analysis and usually ahead of it.

  • Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

    • APQ8053, APQ8096AU, AQT1000, AR8031, CSRA6620, CSRA6640, MDM9150, MDM9640, MDM9650, MSM8953, QCA6174A, QCA6390, QCA6391, QCA6420, QCA6426, QCA6430, QCA6436, QCA6574A, QCA6574AU, QCA9377, QCM4290, QCM6affected
Affected versions · NVD (20)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • qualcomm apq8053 firmwareall versions
  • qualcomm apq8096au firmwareall versions
  • qualcomm aqt1000 firmwareall versions
  • qualcomm ar8031 firmwareall versions
  • qualcomm csra6620 firmwareall versions
  • qualcomm csra6640 firmwareall versions
  • qualcomm mdm9150 firmwareall versions
  • qualcomm mdm9640 firmwareall versions
  • qualcomm mdm9650 firmwareall versions
  • qualcomm msm8953 firmwareall versions
  • qualcomm qca6174a firmwareall versions
  • qualcomm qca6390 firmwareall versions
  • qualcomm qca6391 firmwareall versions
  • qualcomm qca6420 firmwareall versions
  • qualcomm qca6426 firmwareall versions
  • qualcomm qca6430 firmwareall versions
  • qualcomm qca6436 firmwareall versions
  • qualcomm qca6574a firmwareall versions
  • qualcomm qca6574au firmwareall versions
  • qualcomm qca9377 firmwareall versions

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-22071Possible use after free when process shell memory is freed using IOCTL munmap call and process initialization is in progress in Snapdragon…KEV
    61This week
  • CVE-2020-11264Improper authentication of Non-EAPOL/WAPI plaintext frames during four-way handshake can lead to arbitrary network packet injection in…
    43Plan
  • CVE-2020-11153u'Out of bound memory access while processing GATT data received due to lack of check of pdu data length and leads to remote code…
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2021-35079Jun 14, 2022 · Improper validation of permissions for third party application accessing Telephony service API can lead to information disclosure in…
    22Monitor
  • ← EarlierCVE-2021-35092Jun 14, 2022 · Processing DCB/AVB algorithm with an invalid queue index from IOCTL request could lead to arbitrary address modification in Snapdragon…
    26Monitor
  • Later →CVE-2021-35118Jun 14, 2022 · An out-of-bounds write can occur due to an incorrect input check in the camera driver in Snapdragon Auto, Snapdragon Compute, Snapdragon…
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records