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NVD / CVE Program· CNA qualcomm

CVE-2025-27034: Improper Validation of Array Index in Multi-Mode Call Processor

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

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: 0.41% (FIRST EPSS).
  • 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 CISA the attack is automatable: targets can be found by mass scanning.
  • According to the record, no fixed version is available yet.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

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

Memory corruption while selecting the PLMN from SOR failed list.

Published
Sep 24, 2025
Updated
Jun 17, 2026
EPSS
0.4% · 36th percentile

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 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · qualcomm
9.8
NVD has not scored this yet; the score shown is the CNA’s.

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

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.

Follow CVE-2025-27034

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

VendorProduct
qualcommfastconnect 6900 firmware
qualcommfastconnect 6900
qualcommfastconnect 7800 firmware
qualcommfastconnect 7800
qualcommqca6174a firmware
qualcommqca6174a
qualcommqca6391 firmware
qualcommqca6391
qualcommqca6574a firmware
qualcommqca6574a
qualcommqca6584au firmware
qualcommqca6584au

and 188 more

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

    • 315 5G IoT Modem, AR8035, FastConnect 6200, FastConnect 6700, FastConnect 6800, FastConnect 6900, FastConnect 7800, QCA6174A, QCA6391, QCA6574A, QCA6584AU, QCA6595AU … (+28)affected
Affected versions · NVD (20)

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

  • qualcomm 315 5g iot modem firmwareall versions
  • qualcomm ar8035 firmwareall versions
  • qualcomm fastconnect 6200 firmwareall versions
  • qualcomm fastconnect 6700 firmwareall versions
  • qualcomm fastconnect 6800 firmwareall versions
  • qualcomm fastconnect 6900 firmwareall versions
  • qualcomm fastconnect 7800 firmwareall versions
  • qualcomm qca6174a firmwareall versions
  • qualcomm qca6391 firmwareall versions
  • qualcomm qca6574a firmwareall versions
  • qualcomm qca6584au firmwareall versions
  • qualcomm qca6595au firmwareall versions
  • qualcomm qca6696 firmwareall versions
  • qualcomm qca6698aq firmwareall versions
  • qualcomm qca8081 firmwareall versions
  • qualcomm qca8337 firmwareall versions
  • qualcomm qcc710 firmwareall versions
  • qualcomm qcm4490 firmwareall versions
  • qualcomm qcm5430 firmwareall versions
  • qualcomm qcm6490 firmwareall versions

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

Published before and after this one in the same product

  • ← EarlierCVE-2025-21473Aug 6, 2025 · Time-of-check Time-of-use (TOCTOU) Race Condition in Camera_Linux
    28Monitor
  • ← EarlierCVE-2025-27069Aug 6, 2025 · Untrusted Pointer Dereference in DSP Service
    31Monitor
  • Later →CVE-2025-27039Oct 9, 2025 · Detection of Error Condition Without Action in Computer Vision
    26Monitor

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.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-45576141 days apartImproper Validation of Array Index in Camera Driver
    31Monitor
  • CVE-2024-45578141 days apartImproper Validation of Array Index in Camera Driver
    31Monitor
  • CVE-2025-21447170 days apartImproper Validation of Array Index in Computer Vision
    31Monitor
  • CVE-2024-49836205 days apartImproper Validation of Array Index in Camera
    31Monitor
  • CVE-2024-45582233 days apartImproper Validation of Array Index in Camera Driver
    31Monitor
  • CVE-2024-49832233 days apartImproper Validation of Array Index in Camera
    31Monitor

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · public bounty program.

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-129 · Improper Validation of Array Index

CVSS vector

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

nvd-secondary

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

—

References

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

All records