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CVE-2021-30342· NVD / CVE Program· CNA qualcomm

Improper integrity check can lead to race condition between tasks PDCP and RRC? after a valid RRC Command packet has been received in Snapdr

Improper integrity check can lead to race condition between tasks PDCP and RRC? after a valid RRC Command packet has been received in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables

MediumCVSS 5.9 · v3.1—No exploit No fix recorded
Published
Jun 14, 2022
Updated
Jun 16, 2026
EPSS
0.5% · 39th percentile
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JSON

Action score

23

Monitor

Low priority for now.

CVSS
23 / 40 · 5.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CNA vs NVD score

NVD
5.9
CNA · qualcomm
9.1
3.2 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
qualcommapq8009w firmware
qualcommapq8009w
qualcommapq8017 firmware
qualcommapq8017
qualcommapq8096au firmware
qualcommapq8096au
qualcommaqt1000 firmware
qualcommaqt1000
qualcommcsrb31024 firmware
qualcommcsrb31024
qualcommfsm10055 firmware
qualcommfsm10055

and 178 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 apq8017 firmwareall versions
  • qualcomm apq8096au firmwareall versions
  • qualcomm aqt1000 firmwareall versions
  • qualcomm csrb31024 firmwareall versions
  • qualcomm fsm10055 firmwareall versions
  • qualcomm fsm10056 firmwareall versions
  • qualcomm mdm8207 firmwareall versions
  • qualcomm mdm9150 firmwareall versions
  • qualcomm mdm9205 firmwareall versions
  • qualcomm mdm9206 firmwareall versions
  • qualcomm mdm9207 firmwareall versions
  • qualcomm mdm9250 firmwareall versions
  • qualcomm mdm9607 firmwareall versions
  • qualcomm mdm9628 firmwareall versions
  • qualcomm mdm9640 firmwareall versions
  • qualcomm mdm9650 firmwareall versions
  • qualcomm mdm9655 firmwareall versions
  • qualcomm msm8909w 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 Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables

    • APQ8009W, APQ8017, APQ8096AU, AQT1000, CSRB31024, FSM10055, FSM10056, MDM8207, MDM9150, MDM9205, MDM9206, MDM9207, MDM9250, MDM9607, MDM9628, MDM9640, MDM9650, MDM9655, MSM8909W, MSM8996AU, QCA4004, Qaffected

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
  • CVE-2021-35068Lack of null check while freeing the device information buffer in the Bluetooth HFP protocol can lead to a NULL pointer dereference in Snapd
    39Monitor
  • CVE-2020-11307Buffer overflow in modem due to improper array index check before copying into it in Snapdragon Auto, Snapdragon Compute, Snapdragon Connect
    39Monitor
  • CVE-2020-11168u'Null-pointer dereference can occur while accessing data buffer beyond its size that leads to access the buffer beyond its range' in Snapdr
    39Monitor

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.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition

CVSS vector

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

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.

ATT&CK techniques

—

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