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NVD / CVE Program· CNA qualcomm

CVE-2020-11203: Stack overflow may occur if GSM/WCDMA broadcast config size received from user is larger than variable length array in Snapdragon Auto, Snap

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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. A low-privileged account is enough. 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

Stack overflow may occur if GSM/WCDMA broadcast config size received from user is larger than variable length array in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables

HighCVSS 7.1 · v3.1—No exploit No fix recorded
Published
Feb 22, 2021
Updated
Jun 16, 2026
EPSS
0.1% · 4th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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-2020-11203

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
qualcommapq8009w firmware
qualcommapq8009w
qualcommapq8064au firmware
qualcommapq8064au
qualcommapq8096au firmware
qualcommapq8096au
qualcommaqt1000 firmware
qualcommaqt1000
qualcommmsm8909w firmware
qualcommmsm8909w
qualcommmsm8996au firmware
qualcommmsm8996au

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 apq8009w firmwareall versions
  • qualcomm apq8064au firmwareall versions
  • qualcomm apq8096au firmwareall versions
  • qualcomm aqt1000 firmwareall versions
  • qualcomm msm8909w firmwareall versions
  • qualcomm msm8996au firmwareall versions
  • qualcomm pm215 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 pm640a firmwareall versions
  • qualcomm pm640l firmwareall versions
  • qualcomm pm640p firmwareall versions
  • qualcomm pm670 firmwareall versions
  • qualcomm pm670l firmwareall versions
  • qualcomm pm8004 firmwareall versions
  • qualcomm pm8005 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 Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables

    • APQ8009W, APQ8064AU, APQ8096AU, AQT1000, MSM8909W, MSM8996AU, PM215, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM640A, PM640L, PM640P, PM670, PM670L, PM8004, PM8005, PM8008, PM8009, PM855, PM85affected

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-22086Memory corruption in video due to double free while parsing 3gp clip with invalid meta data atoms in Snapdragon Auto, Snapdragon Compute, Sn
    39Monitor
  • CVE-2021-35104Possible buffer overflow due to improper parsing of headers while playing the FLAC audio clip in Snapdragon Auto, Snapdragon Compute, Snapdr
    39Monitor
  • CVE-2021-30341Improper buffer size validation of DSM packet received can lead to memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Conn
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2020-11168Nov 12, 2020 · u'Null-pointer dereference can occur while accessing data buffer beyond its size that leads to access the buffer beyond its range' in Snapdr
    39Monitor
  • ← EarlierCVE-2020-11175Nov 12, 2020 · u'Use after free issue in Bluetooth transport driver when a method in the object is accessed after the object has been deleted due to improp
    31Monitor
  • Later →CVE-2021-1891May 7, 2021 · A possible use-after-free occurrence in audio driver can happen when pointers are not properly handled in Snapdragon Auto, Snapdragon Comput
    31Monitor

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.

No history yet (it accumulates with the daily EPSS job).

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
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
None
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

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

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