Skip to content
Noroxi
CVE-2022-40518· NVD / CVE Program· CNA qualcomm

Buffer overread in Core

Information disclosure due to buffer overread in Core

MediumCVSS 5.5 · v3.1—No exploit No fix recorded
Published
Jan 9, 2023
Updated
Jun 17, 2026
EPSS
0.1% · 1th percentile
Follow this CVE

Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · qualcomm
6.8
1.3 point gap

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

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

Affected systems

VendorProduct
qualcommaqt1000 firmware
qualcommaqt1000
qualcommar8031 firmware
qualcommar8031
qualcommar8035 firmware
qualcommar8035
qualcommcsra6620 firmware
qualcommcsra6620
qualcommcsra6640 firmware
qualcommcsra6640
qualcommcsrb31024 firmware
qualcommcsrb31024

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 ar8031 firmwareall versions
  • qualcomm ar8035 firmwareall versions
  • qualcomm csra6620 firmwareall versions
  • qualcomm csra6640 firmwareall versions
  • qualcomm csrb31024 firmwareall versions
  • qualcomm fsm10056 firmwareall versions
  • qualcomm mdm9150 firmwareall versions
  • qualcomm mdm9205 firmwareall versions
  • qualcomm qam8295p firmwareall versions
  • qualcomm qca4004 firmwareall versions
  • qualcomm qca6174a firmwareall versions
  • qualcomm qca6310 firmwareall versions
  • qualcomm qca6320 firmwareall versions
  • qualcomm qca6335 firmwareall versions
  • qualcomm qca6390 firmwareall versions
  • qualcomm qca6391 firmwareall versions
  • qualcomm qca6420 firmwareall versions
  • qualcomm qca6421 firmwareall versions
  • qualcomm qca6426 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, AR8031, AR8035, CSRA6620, CSRA6640, CSRB31024, FSM10056, MDM9150, MDM9205, QAM8295P, QCA4004, QCA6174A … (+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
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

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

—

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