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CVE-2020-3675· NVD / CVE Program· CNA qualcomm

u'Potential integer underflow while parsing Service Info and IPv6 link-local TLVs that comes as part of NDPE attribute' in Snapdragon Auto,

u'Potential integer underflow while parsing Service Info and IPv6 link-local TLVs that comes as part of NDPE attribute' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in IPQ5018, IPQ6018, IPQ8074, Kamorta, Nicobar, QCA6390, QCN7605, QCS404, QCS405, Rennell, SA415M, Saipan, SC7180, SC8180X, SDX55, SM6150, SM7150, SM8150, SM8250

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
Sep 8, 2020
Updated
Jun 16, 2026
EPSS
1.1% · 63th 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
qualcommipq5018 firmware
qualcommipq5018
qualcommipq6018 firmware
qualcommipq6018
qualcommipq8074 firmware
qualcommipq8074
qualcommkamorta firmware
qualcommkamorta
qualcommnicobar firmware
qualcommnicobar
qualcommqca6390 firmware
qualcommqca6390

and 26 more

Affected versions

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

  • qualcomm ipq5018 firmwareall versions
  • qualcomm ipq6018 firmwareall versions
  • qualcomm ipq8074 firmwareall versions
  • qualcomm kamorta firmwareall versions
  • qualcomm nicobar firmwareall versions
  • qualcomm qca6390 firmwareall versions
  • qualcomm qcn7605 firmwareall versions
  • qualcomm qcs404 firmwareall versions
  • qualcomm qcs405 firmwareall versions
  • qualcomm rennell firmwareall versions
  • qualcomm sa415m firmwareall versions
  • qualcomm saipan firmwareall versions
  • qualcomm sc7180 firmwareall versions
  • qualcomm sc8180x firmwareall versions
  • qualcomm sdx55 firmwareall versions
  • qualcomm sm6150 firmwareall versions
  • qualcomm sm7150 firmwareall versions
  • qualcomm sm8150 firmwareall versions
  • qualcomm sm8250 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 Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Inf

    • IPQ5018, IPQ6018, IPQ8074, Kamorta, Nicobar, QCA6390, QCN7605, QCS404, QCS405, Rennell, SA415M, Saipan, SC7180, SC8180X, SDX55, SM6150, SM7150, SM8150, SM8250affected

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-191 · Integer Underflow (Wrap or Wraparound)

CVSS vector

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

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