CVE-2026-21383 | Reusing a Nonce, Key Pair in Encryption in HLOS

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

Published: 2026-07-06 Last update: 2026-07-08 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-21383 is rated Low Risk (28.9/100): CVSS High severity, with low exploitation likelihood (EPSS 0.11%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-21383

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-07-07 — 0.11% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-21383

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 5.2 [email protected]

Weakness enumeration for CVE-2026-21383

GitHub Security Advisory for CVE-2026-21383

GHSA-3p8m-mr3f-jqg6 · Severity: high — Cryptographic Issue when using a static initialization vector for AES-GCM key wrapping, which...

Affected software / configurations for CVE-2026-21383

Vendor Product Version Raw CPE
qualcomm fastconnect_6900_firmware — cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
qualcomm fastconnect_7800_firmware — cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
qualcomm lemans_au_lgit_firmware — cpe:2.3:o:qualcomm:lemans_au_lgit_firmware:-:*:*:*:*:*:*:*
qualcomm lemansau_firmware — cpe:2.3:o:qualcomm:lemansau_firmware:-:*:*:*:*:*:*:*
qualcomm pandeiro_firmware — cpe:2.3:o:qualcomm:pandeiro_firmware:-:*:*:*:*:*:*:*
qualcomm qam8255p_firmware — cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:*
qualcomm qam8397p_firmware — cpe:2.3:o:qualcomm:qam8397p_firmware:-:*:*:*:*:*:*:*
qualcomm qam8797p_firmware — cpe:2.3:o:qualcomm:qam8797p_firmware:-:*:*:*:*:*:*:*
qualcomm qamsrv1h_firmware — cpe:2.3:o:qualcomm:qamsrv1h_firmware:-:*:*:*:*:*:*:*
qualcomm qamsrv1m_firmware — cpe:2.3:o:qualcomm:qamsrv1m_firmware:-:*:*:*:*:*:*:*
qualcomm qca6595au_firmware — cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6696_firmware — cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
qualcomm qca6698aq_firmware — cpe:2.3:o:qualcomm:qca6698aq_firmware:-:*:*:*:*:*:*:*
qualcomm qca6797aq_firmware — cpe:2.3:o:qualcomm:qca6797aq_firmware:-:*:*:*:*:*:*:*
qualcomm qca8695au_firmware — cpe:2.3:o:qualcomm:qca8695au_firmware:-:*:*:*:*:*:*:*
qualcomm qdu1000_firmware — cpe:2.3:o:qualcomm:qdu1000_firmware:-:*:*:*:*:*:*:*
qualcomm qdu1110_firmware — cpe:2.3:o:qualcomm:qdu1110_firmware:-:*:*:*:*:*:*:*
qualcomm qdu1210_firmware — cpe:2.3:o:qualcomm:qdu1210_firmware:-:*:*:*:*:*:*:*
qualcomm qdx1010_firmware — cpe:2.3:o:qualcomm:qdx1010_firmware:-:*:*:*:*:*:*:*
qualcomm qdx1011_firmware — cpe:2.3:o:qualcomm:qdx1011_firmware:-:*:*:*:*:*:*:*
qualcomm qln1083bd_firmware — cpe:2.3:o:qualcomm:qln1083bd_firmware:-:*:*:*:*:*:*:*
qualcomm qln1086bd_firmware — cpe:2.3:o:qualcomm:qln1086bd_firmware:-:*:*:*:*:*:*:*
qualcomm qpa1083bd_firmware — cpe:2.3:o:qualcomm:qpa1083bd_firmware:-:*:*:*:*:*:*:*
qualcomm qpa1086bd_firmware — cpe:2.3:o:qualcomm:qpa1086bd_firmware:-:*:*:*:*:*:*:*
qualcomm qualcomm_dragonwing_x100_accelerator_card_firmware — cpe:2.3:o:qualcomm:qualcomm_dragonwing_x100_accelerator_card_firmware:-:*:*:*:*:*:*:*
qualcomm qxm1093_firmware — cpe:2.3:o:qualcomm:qxm1093_firmware:-:*:*:*:*:*:*:*
qualcomm qxm1094_firmware — cpe:2.3:o:qualcomm:qxm1094_firmware:-:*:*:*:*:*:*:*
qualcomm qxm1095_firmware — cpe:2.3:o:qualcomm:qxm1095_firmware:-:*:*:*:*:*:*:*
qualcomm qxm1096_firmware — cpe:2.3:o:qualcomm:qxm1096_firmware:-:*:*:*:*:*:*:*
qualcomm sa7255p_firmware — cpe:2.3:o:qualcomm:sa7255p_firmware:-:*:*:*:*:*:*:*
qualcomm sa7775p_firmware — cpe:2.3:o:qualcomm:sa7775p_firmware:-:*:*:*:*:*:*:*
qualcomm sa8255p_firmware — cpe:2.3:o:qualcomm:sa8255p_firmware:-:*:*:*:*:*:*:*
qualcomm sa8620p_firmware — cpe:2.3:o:qualcomm:sa8620p_firmware:-:*:*:*:*:*:*:*
qualcomm sa8770p_firmware — cpe:2.3:o:qualcomm:sa8770p_firmware:-:*:*:*:*:*:*:*
qualcomm sa9000p_firmware — cpe:2.3:o:qualcomm:sa9000p_firmware:-:*:*:*:*:*:*:*
qualcomm sar1165p_firmware — cpe:2.3:o:qualcomm:sar1165p_firmware:-:*:*:*:*:*:*:*
qualcomm sar2130p_firmware — cpe:2.3:o:qualcomm:sar2130p_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_ar1_gen_1_platform_firmware — cpe:2.3:o:qualcomm:snapdragon_ar1_gen_1_platform_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_ar1\+_gen_1_platform_firmware — cpe:2.3:o:qualcomm:snapdragon_ar1\+_gen_1_platform_firmware:-:*:*:*:*:*:*:*
qualcomm srv1h_firmware — cpe:2.3:o:qualcomm:srv1h_firmware:-:*:*:*:*:*:*:*
qualcomm srv1m_firmware — cpe:2.3:o:qualcomm:srv1m_firmware:-:*:*:*:*:*:*:*
qualcomm sxr2230p_firmware — cpe:2.3:o:qualcomm:sxr2230p_firmware:-:*:*:*:*:*:*:*
qualcomm sxr2250p_firmware — cpe:2.3:o:qualcomm:sxr2250p_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9380_firmware — cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9385_firmware — cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:*
qualcomm wcn3950_firmware — cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:*
qualcomm wcn7860_firmware — cpe:2.3:o:qualcomm:wcn7860_firmware:-:*:*:*:*:*:*:*
qualcomm wcn7861_firmware — cpe:2.3:o:qualcomm:wcn7861_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8830_firmware — cpe:2.3:o:qualcomm:wsa8830_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8832_firmware — cpe:2.3:o:qualcomm:wsa8832_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8835_firmware — cpe:2.3:o:qualcomm:wsa8835_firmware:-:*:*:*:*:*:*:*
qualcomm xrv7209_firmware — cpe:2.3:o:qualcomm:xrv7209_firmware:-:*:*:*:*:*:*:*
qualcomm xrv9209_firmware — cpe:2.3:o:qualcomm:xrv9209_firmware:-:*:*:*:*:*:*:*

References for CVE-2026-21383

cvelogic Threat Intelligence