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CVE-2020-11147· NVD / CVE Program· CNA qualcomm

Use after free issue in audio modules while removing and freeing objects during list iteration due to incorrect usage of macro in Snapdragon

Use after free issue in audio modules while removing and freeing objects during list iteration due to incorrect usage of macro in Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile

MediumCVSS 6.7 · v3.1—No exploit No fix recorded
Published
Feb 22, 2021
Updated
Jun 16, 2026
EPSS
0.2% · 4th percentile
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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 · 0.2%

Affected systems

VendorProduct
qualcommaqt1000 firmware
qualcommaqt1000
qualcommpm3003a firmware
qualcommpm3003a
qualcommpm456 firmware
qualcommpm456
qualcommpm6125 firmware
qualcommpm6125
qualcommpm6150 firmware
qualcommpm6150
qualcommpm6150a firmware
qualcommpm6150a

and 188 more

Affected versions

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

  • qualcomm aqt1000 firmwareall versions
  • qualcomm pm3003a firmwareall versions
  • qualcomm pm456 firmwareall versions
  • qualcomm pm6125 firmwareall versions
  • qualcomm pm6150 firmwareall versions
  • qualcomm pm6150a firmwareall versions
  • qualcomm pm6150l firmwareall versions
  • qualcomm pm6250 firmwareall versions
  • qualcomm pm6350 firmwareall versions
  • qualcomm pm660 firmwareall versions
  • qualcomm pm660a firmwareall versions
  • qualcomm pm660l firmwareall versions
  • qualcomm pm7150a firmwareall versions
  • qualcomm pm7150l firmwareall versions
  • qualcomm pm7250 firmwareall versions
  • qualcomm pm7250b firmwareall versions
  • qualcomm pm7350c firmwareall versions
  • qualcomm pm8004 firmwareall versions
  • qualcomm pm8008 firmwareall versions
  • qualcomm pm8009 firmwareall versions

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 Compute, Snapdragon Industrial IOT, Snapdragon Mobile

    • AQT1000, PM3003A, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM6350, PM660, PM660A, PM660L, PM7150A, PM7150L, PM7250, PM7250B, PM7350C, PM8004, PM8008, PM8009, PM8150A, PM8150B, PM8150C, PM8150Laffected

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-21479Incorrect Authorization in GraphicsKEV
    64This week
  • CVE-2025-21480Incorrect Authorization in Graphics WindowsKEV
    64This week
  • CVE-2021-1965Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Auto, Snapdragon Compute, Snapdrago
    40Plan
  • CVE-2023-43548Buffer Copy Without Checking Size of Input in Video
    39Monitor
  • CVE-2023-43519Buffer Copy without Checking Size of Input (`Classic Buffer Overflow`) in Video
    39Monitor
  • CVE-2023-43518Untrusted Pointer Dereference in Video
    39Monitor

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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

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-416 · Use After Free

CVSS vector

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

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);

Fixed

c
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

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

All records