NVD / CVE Program· CNA qualcomm

CVE-2020-11299: Buffer overflow can occur in video while playing the non-standard clip in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snap

Noroxi assessment

Priority: Monitor (action score 39/100)

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: 1% (FIRST EPSS); higher than 65.2% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is 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

Buffer overflow can occur in video while playing the non-standard clip in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

Published: Mar 17, 2021
Updated: Jun 16, 2026
EPSS: 1.0% · 65th percentile
CWE: CWE-120

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.0%

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.

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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.

Vendor	Product	CPE
qualcomm	apq8009 firmware	cpe:2.3:o:qualcomm:apq8009_firmware
qualcomm	apq8009	cpe:2.3:h:qualcomm:apq8009
qualcomm	apq8009w firmware	cpe:2.3:o:qualcomm:apq8009w_firmware
qualcomm	apq8009w	cpe:2.3:h:qualcomm:apq8009w
qualcomm	apq8017 firmware	cpe:2.3:o:qualcomm:apq8017_firmware
qualcomm	apq8017	cpe:2.3:h:qualcomm:apq8017
qualcomm	apq8053 firmware	cpe:2.3:o:qualcomm:apq8053_firmware
qualcomm	apq8053	cpe:2.3:h:qualcomm:apq8053
qualcomm	apq8064au firmware	cpe:2.3:o:qualcomm:apq8064au_firmware
qualcomm	apq8064au	cpe:2.3:h:qualcomm:apq8064au
qualcomm	apq8096au firmware	cpe:2.3:o:qualcomm:apq8096au_firmware
qualcomm	apq8096au	cpe:2.3:h:qualcomm:apq8096au

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 apq8009 firmwareall versions
qualcomm apq8009w firmwareall versions
qualcomm apq8017 firmwareall versions
qualcomm apq8053 firmwareall versions
qualcomm apq8064au firmwareall versions
qualcomm apq8096au firmwareall versions
qualcomm aqt1000 firmwareall versions
qualcomm ar8031 firmwareall versions
qualcomm ar8151 firmwareall versions
qualcomm csra6620 firmwareall versions
qualcomm csra6640 firmwareall versions
qualcomm fsm10055 firmwareall versions
qualcomm fsm10056 firmwareall versions
qualcomm mdm9206 firmwareall versions
qualcomm mdm9650 firmwareall versions
qualcomm msm8909w firmwareall versions
qualcomm msm8917 firmwareall versions
qualcomm msm8937 firmwareall versions
qualcomm msm8953 firmwareall versions
qualcomm msm8996au 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 Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
- APQ8009, APQ8009W, APQ8017, APQ8053, APQ8064AU, APQ8096AU, AQT1000, AR8031, AR8151, CSRA6620, CSRA6640, FSM10055, FSM10056, MDM9206, MDM9650, MSM8909W, MSM8917, MSM8937, MSM8953, MSM8996AU, PM215, PM3affected

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

CVE-2020-11261Memory corruption due to improper check to return error when user application requests memory allocation of a huge size in Snapdragon Auto, KEV
61This week
CVE-2021-1905Possible use after free due to improper handling of memory mapping of multiple processes simultaneously.KEV
61This week
CVE-2021-1906Improper handling of address deregistration on failure can lead to new GPU address allocation failure.KEV
52Plan

Published before and after this one in the same product

← EarlierCVE-2020-11227Mar 17, 2021 · Out of bound write while parsing RTT/TTY packet parsing due to lack of check of buffer size before copying into buffer in Snapdragon Auto, S
39Monitor
← EarlierCVE-2020-11290Mar 17, 2021 · Use after free condition in msm ioctl events due to race between the ioctl register and deregister events in Snapdragon Auto, Snapdragon Com
28Monitor
Later →CVE-2020-11305Mar 17, 2021 · Integer overflow in boot due to improper length check on arguments received in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdrago
27Monitor

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

Anyone who can reach it over the internet can trigger it.
No account or password is 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: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

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

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

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

Vulnerable

1char buf[256];
2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];
2if (pkt->len > sizeof(buf)) {
3  return -EINVAL;
4}
5memcpy(buf, pkt->data, pkt->len);

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

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

References

www.qualcomm.com/company/product-security/bulletins/march-2021-bulletin

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

All records