7.8

CVE-2025-21423: qualcomm, inc. snapdragon Improper Validation of Array Index

CVSS: 7.8v3.1HighAnalyzed
Published 07-04-2025Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2025-21423 is a high (CVSS 7.8) Improper Validation of Array Index vulnerability in qualcomm, inc. snapdragon. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.1% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.11%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-04-2025
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

Memory corruption occurs when handling client calls to EnableTestMode through an Escape call.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.11%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

0.00 pp

From 0.11% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.11%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Qualcomm45 products
Qualcomm, inc.1 product
  • snapdragonAQT1000 | FastConnect 6200 | FastConnect 6700 | FastConnect 6800 | FastConnect 6900 | FastConnect 7800 | QCA6391 | QCA6420 | QCA6430 | QCM5430 | QCM6490 | QCS5430 | QCS6490 | Qualcomm Video Collaboration VC3 Platform | SC8180X+SDX55 | SC8380XP | SM6250 | Snapdragon 7c Compute Platform (SC7180-AC) | Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro" | Snapdragon 7c+ Gen 3 Compute | Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite" | Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite" | Snapdragon 8cx Compute Platform (SC8180X-AA, AB) | Snapdragon 8cx Compute Platform (SC8180XP-AC, AF) "Poipu Pro" | Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC, AF) "Poipu Pro" | Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB) | Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB, BB) | WCD9340 | WCD9341 | WCD9370 | WCD9375 | WCD9380 | WCD9385 | WSA8810 | WSA8815 | WSA8830 | WSA8835 | WSA8840 | WSA8845 | WSA8845H

2 vendors · 46 products

References

1 links