CVE-2022-33287Network attack vector

Memory disclosure via IPv6 header buffer over-read

Published Apr 4, 2023 · Updated Aug 3, 2024

Buffer over-read in Qualcomm Snapdragon modem firmware allows remote attackers to disclose memory through a crafted IPv6 packet. The unfragmented-header length calculation reads beyond the packet buffer while processing malformed IPv6 header data. Network access to an affected modem is sufficient, with no authentication or user interaction required; Qualcomm has not detailed the exposed memory.

CVSS severity8.2
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Buffer over-read in Qualcomm Snapdragon modem firmware allows remote attackers to disclose memory through a crafted IPv6 packet. The unfragmented-header length calculation reads beyond the packet buffer while processing malformed IPv6 header data. Network access to an affected modem is sufficient, with no authentication or user interaction required; Qualcomm has not detailed the exposed memory.

The record

CVE
CVE-2022-33287
Published
Apr 4, 2023
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Qualcomm Snapdragon 1200 Wearable Platform Firmware
Classifications
CWE-126
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Qualcomm Snapdragon 1200 Wearable Platform Firmwareversion=0 <=*
Qualcomm · CSRA6620 Firmwareversion=0 <=*
Qualcomm · WSA8810 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9306 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCN3999 Firmwareversion=0 <=*
Qualcomm · FastConnect 7800 Firmwareversion=0 <=*
Qualcomm · CSRA6640 Firmwareversion=0 <=*
Qualcomm · Snapdragonversion=9205 LTE Modem; version=9206 LTE Modem; version=9207 LTE Modem; version=AR8031; version=CSRA6620; version=CSRA6640; version=FastConnect 6200; version=FastConnect 6900; version=FastConnect 7800; version=Home Hub 100 Platform; version=MDM8207; version=QCA4004; version=QCA4010; version=QCA4024; version=QTS110; version=Smart Audio 400 Platform; version=Snapdragon 1100 Wearable Platform; version=Snapdragon 1200 Wearable Platform; version=Snapdragon AR2 Gen 1 Platform; version=Snapdragon Wear 1300 Platform; version=Snapdragon X5 LTE Modem; version=SSG2115P; version=SSG2125P; version=SXR1230P; version=SXR2230P; version=WCD9306; version=WCD9330; version=WCD9335; version=WCD9380; version=WCD9385; version=WCN3980; version=WCN3999; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835
Qualcomm · MDM9206 LTE Modem Firmwareversion=0 <=*
Qualcomm · SXR1230P Firmwareversion=0 <=*
Qualcomm · FastConnect 6900 Firmwareversion=0 <=*
Qualcomm · SSG2125P Firmwareversion=0 <=*
Qualcomm · 9207 LTE Modem Firmwareversion=0 <=*
Qualcomm · SSG2115P Firmwareversion=0 <=*
Qualcomm · Qualcomm Smart Audio 400 Platform Firmwareversion=0 <=*
Qualcomm · QCA4010 Firmwareversion=0 <=*
Qualcomm · AR8031 Firmwareversion=0 <=*
Qualcomm · WCD9380 Firmwareversion=0 <=*
Qualcomm · QCA4004 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon X5 LTE Modem Firmwareversion=0 <=*
Qualcomm · MDM8207 Firmwareversion=0 <=*
Qualcomm · SXR2230P Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon AR2 Gen 1 Platform Firmwareversion=0 <=*
Qualcomm · FastConnect 6200 Firmwareversion=0 <=*
Qualcomm · QCA4024 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon Wear 1300 Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm QTS110 Firmwareversion=0 <=*
Qualcomm · WSA8830 Firmwareversion=0 <=*
Qualcomm · WCD9385 Firmwareversion=0 <=*
Qualcomm · WCN3980 Firmwareversion=0 <=*
Qualcomm · WSA8835 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9335 Firmwareversion=0 <=*
Qualcomm · WSA8832 Firmwareversion=0 <=*
Qualcomm · WCD9330 Firmwareversion=0 <=*
Qualcomm · Snapdragon Wear 1100 Wearable Platform Firmwareversion=0 <=*
Qualcomm · Home Hub 100 Platform Firmwareversion=0 <=*
Qualcomm · 9205 LTE Modem Firmwareversion=0 <=*
Qualcomm · WSA8815 Firmwareversion=0 <=*

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.2Qualcomm, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-126Buffer Over-read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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