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CVE-2022-33263· NVD / CVE Program· CNA qualcomm

Use after free in Core

Memory corruption due to use after free in Core when multiple DCI clients register and deregister.

HighCVSS 7.8 · v3.1—No exploit No fix recorded
Published
Jun 6, 2023
Updated
Jun 17, 2026
EPSS
0.1% · 1th percentile
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Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · qualcomm
6.7
1.1 point gap

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

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

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
qualcommaqt1000 firmware
qualcommaqt1000
qualcommwcn3991 firmware
qualcommwcn3991
qualcommwcn3998 firmware
qualcommwcn3998
qualcommwcn6750 firmware
qualcommwcn6750
qualcommwcn685x-5 firmware
qualcommwcn685x-5
qualcommwcn685x-1 firmware
qualcommwcn685x-1

and 86 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 qam8255p firmwareall versions
  • qualcomm qca6420 firmwareall versions
  • qualcomm qca6430 firmwareall versions
  • qualcomm qca6574au firmwareall versions
  • qualcomm qca6595au firmwareall versions
  • qualcomm qca6698aq firmwareall versions
  • qualcomm qca6797aq firmwareall versions
  • qualcomm qcs8155 firmwareall versions
  • qualcomm sa6155p firmwareall versions
  • qualcomm sa8155p firmwareall versions
  • qualcomm sa8195p firmwareall versions
  • qualcomm sa8255p firmwareall versions
  • qualcomm sd 8 gen1 5g firmwareall versions
  • qualcomm sd855 firmwareall versions
  • qualcomm sm4450 firmwareall versions
  • qualcomm sm8150 firmwareall versions
  • qualcomm sm8150-ac firmwareall versions
  • qualcomm sm8350 firmwareall versions
  • qualcomm sm8350-ac 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

    • AQT1000, FastConnect 6200, FastConnect 6700, FastConnect 6900, FastConnect 7800, QAM8255P, QCA6420, QCA6430, QCA6574AU, QCA6595AU, QCA6698AQ, QCA6797AQ … (+28)affected

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.
  • A low-privileged account is enough.
  • 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
Low
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:L/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.

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