SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-21383

Cryptographic Issue when using a static initialization vector for AES-GCM key wrapping, which requires a unique value for each call to ensure security.

HIGH 7.1EPSS 0.10%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.10%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Cryptographic Issue when using a static initialization vector for AES-GCM key wrapping, which requires a unique value for each call to ensure security.

CVSS 3.1
7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS
0.10% probability · 1th percentile
CISA KEV
Not listed
Weakness
CWE-323
Affected
qualcomm/fastconnect 6900 firmware · qualcomm/fastconnect 7800 firmware · qualcomm/lemans au lgit firmware · qualcomm/lemansau firmware · qualcomm/pandeiro firmware · qualcomm/qam8255p firmware · qualcomm/qam8397p firmware · qualcomm/qam8797p firmware · qualcomm/qamsrv1h firmware · qualcomm/qamsrv1m firmware · qualcomm/qca6595au firmware · qualcomm/qca6696 firmware · qualcomm/qca6698aq firmware · qualcomm/qca6797aq firmware · qualcomm/qca8695au firmware · qualcomm/qdu1000 firmware · qualcomm/qdu1110 firmware · qualcomm/qdu1210 firmware · qualcomm/qdx1010 firmware · qualcomm/qdx1011 firmware · +33 more
Source
product-security@qualcomm.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.