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CVE-2020-3667· NVD / CVE Program· CNA qualcomm

u'Buffer Overflow in mic calculation for WPA due to copying data into buffer without validating the length of buffer' in Snapdragon Auto, Sn

u'Buffer Overflow in mic calculation for WPA due to copying data into buffer without validating the length of buffer' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in APQ8098, IPQ5018, IPQ6018, IPQ8074, Kamorta, MSM8998, Nicobar, QCA6390, QCA8081, QCS404, QCS405, QCS605, Rennell, SA415M, Saipan, SC7180, SC8180X, SDA845, SDM630, SDM636, SDM660, SDM670, SDM710, SDM845, SDM850, SM6150, SM7150, SM8150, SM8250, SXR1130

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
Sep 8, 2020
Updated
Jun 16, 2026
EPSS
1.1% · 64th percentile
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Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.1%

Affected systems

VendorProduct
qualcommapq8098 firmware
qualcommapq8098
qualcommipq5018 firmware
qualcommipq5018
qualcommipq6018 firmware
qualcommipq6018
qualcommipq8074 firmware
qualcommipq8074
qualcommkamorta firmware
qualcommkamorta
qualcommmsm8998 firmware
qualcommmsm8998

and 48 more

Affected versions

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

  • qualcomm apq8098 firmwareall versions
  • qualcomm ipq5018 firmwareall versions
  • qualcomm ipq6018 firmwareall versions
  • qualcomm ipq8074 firmwareall versions
  • qualcomm kamorta firmwareall versions
  • qualcomm msm8998 firmwareall versions
  • qualcomm nicobar firmwareall versions
  • qualcomm qca6390 firmwareall versions
  • qualcomm qca8081 firmwareall versions
  • qualcomm qcs404 firmwareall versions
  • qualcomm qcs405 firmwareall versions
  • qualcomm qcs605 firmwareall versions
  • qualcomm rennell firmwareall versions
  • qualcomm sa415m firmwareall versions
  • qualcomm saipan firmwareall versions
  • qualcomm sc7180 firmwareall versions
  • qualcomm sc8180x firmwareall versions
  • qualcomm sda845 firmwareall versions
  • qualcomm sdm630 firmwareall versions
  • qualcomm sdm636 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 Wired Infrastructure and Netwo

    • APQ8098, IPQ5018, IPQ6018, IPQ8074, Kamorta, MSM8998, Nicobar, QCA6390, QCA8081, QCS404, QCS405, QCS605, Rennell, SA415M, Saipan, SC7180, SC8180X, SDA845, SDM630, SDM636, SDM660, SDM670, SDM710, SDM84affected

Other highest-scoring records for the same primary product.

  • CVE-2020-3669u'Buffer Overflow issue in WLAN tcp ip verification due to usage of out of range pointer offset' in Snapdragon Auto, Snapdragon Compute, Sna
    39Monitor
  • CVE-2019-14112Potential buffer overflow while processing CBF frames due to lack of check of buffer length before copy in Snapdragon Auto, Snapdragon Compu
    39Monitor
  • CVE-2019-14086Possible integer overflow while checking the length of frame which is a 32 bit integer and is added to another 32 bit integer which can lead
    39Monitor
  • CVE-2020-11206Possible buffer overflow in Fastrpc while handling received parameters due to lack of validation on input parameters' in Snapdragon Auto, Sn
    32Monitor
  • CVE-2020-3611u'XBL SEC clears only ZI region when loading Qualcomm-signed segments can lead to improper access issue' in Snapdragon Compute, Snapdragon C
    31Monitor
  • CVE-2019-10628u'Memory can be potentially corrupted if random index is allowed to manipulate TLB entries in Kernel from user library' in Snapdragon Auto,
    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.

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.

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

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.

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

Vulnerable

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

Fixed

c
char buf[256];if (pkt->len > sizeof(buf)) {  return -EINVAL;}memcpy(buf, pkt->data, pkt->len);

Noroxi analysis

No Noroxi analysis for this record yet

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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