CVE-2025-21483 | Improper Restriction of Operations within the Bounds of a Memory Buffer in Data Network Stack & Connectivity

Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.

Published: 2025-09-24 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-21483 is rated Moderate Risk (50.3/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.39%). Review affected assets and schedule remediation.

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-2025-21483

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 2026-06-15 0.05% 0.39% +0.34%
2 2026-04-20 0.04% 0.05% +0.01%
3 2026-01-29 — 0.04% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-21483

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:N)
No account or special rights needed—anonymous or random user is enough.
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:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2025-21483

Affected software / configurations for CVE-2025-21483

Vendor Product Version Raw CPE
qualcomm apq8017_firmware — cpe:2.3:o:qualcomm:apq8017_firmware:-:*:*:*:*:*:*:*
qualcomm apq8064au_firmware — cpe:2.3:o:qualcomm:apq8064au_firmware:-:*:*:*:*:*:*:*
qualcomm aqt1000_firmware — cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
qualcomm fastconnect_6200_firmware — cpe:2.3:o:qualcomm:fastconnect_6200_firmware:-:*:*:*:*:*:*:*
qualcomm fastconnect_6700_firmware — cpe:2.3:o:qualcomm:fastconnect_6700_firmware:-:*:*:*:*:*:*:*
qualcomm fastconnect_6800_firmware — cpe:2.3:o:qualcomm:fastconnect_6800_firmware:-:*:*:*:*:*:*:*
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 msm8996au_firmware — cpe:2.3:o:qualcomm:msm8996au_firmware:-:*:*:*:*:*:*:*
qualcomm qam8255p_firmware — cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:*
qualcomm qam8295p_firmware — cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:*
qualcomm qam8620p_firmware — cpe:2.3:o:qualcomm:qam8620p_firmware:-:*:*:*:*:*:*:*
qualcomm qam8650p_firmware — cpe:2.3:o:qualcomm:qam8650p_firmware:-:*:*:*:*:*:*:*
qualcomm qam8775p_firmware — cpe:2.3:o:qualcomm:qam8775p_firmware:-:*:*:*:*:*:*:*
qualcomm qamsrv1h_firmware — cpe:2.3:o:qualcomm:qamsrv1h_firmware:-:*:*:*:*:*:*:*
qualcomm qamsrv1m_firmware — cpe:2.3:o:qualcomm:qamsrv1m_firmware:-:*:*:*:*:*:*:*
qualcomm qca6310_firmware — cpe:2.3:o:qualcomm:qca6310_firmware:-:*:*:*:*:*:*:*
qualcomm qca6320_firmware — cpe:2.3:o:qualcomm:qca6320_firmware:-:*:*:*:*:*:*:*
qualcomm qca6335_firmware — cpe:2.3:o:qualcomm:qca6335_firmware:-:*:*:*:*:*:*:*
qualcomm qca6391_firmware — cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
qualcomm qca6420_firmware — cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:*
qualcomm qca6426_firmware — cpe:2.3:o:qualcomm:qca6426_firmware:-:*:*:*:*:*:*:*
qualcomm qca6430_firmware — cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:*
qualcomm qca6436_firmware — cpe:2.3:o:qualcomm:qca6436_firmware:-:*:*:*:*:*:*:*
qualcomm qca6564_firmware — cpe:2.3:o:qualcomm:qca6564_firmware:-:*:*:*:*:*:*:*
qualcomm qca6564a_firmware — cpe:2.3:o:qualcomm:qca6564a_firmware:-:*:*:*:*:*:*:*
qualcomm qca6564au_firmware — cpe:2.3:o:qualcomm:qca6564au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6574_firmware — cpe:2.3:o:qualcomm:qca6574_firmware:-:*:*:*:*:*:*:*
qualcomm qca6574a_firmware — cpe:2.3:o:qualcomm:qca6574a_firmware:-:*:*:*:*:*:*:*
qualcomm qca6574au_firmware — cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6595_firmware — cpe:2.3:o:qualcomm:qca6595_firmware:-:*:*:*:*:*:*:*
qualcomm qca6595au_firmware — cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6678aq_firmware — cpe:2.3:o:qualcomm:qca6678aq_firmware:-:*:*:*:*:*:*:*
qualcomm qca6688aq_firmware — cpe:2.3:o:qualcomm:qca6688aq_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 qcm2150_firmware — cpe:2.3:o:qualcomm:qcm2150_firmware:-:*:*:*:*:*:*:*
qualcomm qcm2290_firmware — cpe:2.3:o:qualcomm:qcm2290_firmware:-:*:*:*:*:*:*:*
qualcomm qcm4290_firmware — cpe:2.3:o:qualcomm:qcm4290_firmware:-:*:*:*:*:*:*:*
qualcomm qcm4325_firmware — cpe:2.3:o:qualcomm:qcm4325_firmware:-:*:*:*:*:*:*:*
qualcomm qcm4490_firmware — cpe:2.3:o:qualcomm:qcm4490_firmware:-:*:*:*:*:*:*:*
qualcomm qcm5430_firmware — cpe:2.3:o:qualcomm:qcm5430_firmware:-:*:*:*:*:*:*:*
qualcomm qcm6125_firmware — cpe:2.3:o:qualcomm:qcm6125_firmware:-:*:*:*:*:*:*:*
qualcomm qcm6490_firmware — cpe:2.3:o:qualcomm:qcm6490_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_855\+\/860_mobile_platform_\(sm8150-ac\)_firmware — cpe:2.3:o:qualcomm:snapdragon_855\+\/860_mobile_platform_\(sm8150-ac\)_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_865_5g_mobile_platform_firmware — cpe:2.3:o:qualcomm:snapdragon_865_5g_mobile_platform_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_865\+_5g_mobile_platform_\(sm8250-ab\)_firmware — cpe:2.3:o:qualcomm:snapdragon_865\+_5g_mobile_platform_\(sm8250-ab\)_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_870_5g_mobile_platform_\(sm8250-ac\)_firmware — cpe:2.3:o:qualcomm:snapdragon_870_5g_mobile_platform_\(sm8250-ac\)_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_888_5g_mobile_platform_firmware — cpe:2.3:o:qualcomm:snapdragon_888_5g_mobile_platform_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_888\+_5g_mobile_platform_\(sm8350-ac\)_firmware — cpe:2.3:o:qualcomm:snapdragon_888\+_5g_mobile_platform_\(sm8350-ac\)_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_w5\+_gen_1_wearable_platform_firmware — cpe:2.3:o:qualcomm:snapdragon_w5\+_gen_1_wearable_platform_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_x50_5g_modem-rf_system_firmware — cpe:2.3:o:qualcomm:snapdragon_x50_5g_modem-rf_system_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_x55_5g_modem-rf_system_firmware — cpe:2.3:o:qualcomm:snapdragon_x55_5g_modem-rf_system_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_xr1_platform_firmware — cpe:2.3:o:qualcomm:snapdragon_xr1_platform_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_xr2_5g_platform_firmware — cpe:2.3:o:qualcomm:snapdragon_xr2_5g_platform_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_xr2\+_gen_1_platform_firmware — cpe:2.3:o:qualcomm:snapdragon_xr2\+_gen_1_platform_firmware:-:*:*:*:*:*:*:*
qualcomm srv1h_firmware — cpe:2.3:o:qualcomm:srv1h_firmware:-:*:*:*:*:*:*:*
qualcomm srv1l_firmware — cpe:2.3:o:qualcomm:srv1l_firmware:-:*:*:*:*:*:*:*
qualcomm srv1m_firmware — cpe:2.3:o:qualcomm:srv1m_firmware:-:*:*:*:*:*:*:*
qualcomm sw5100_firmware — cpe:2.3:o:qualcomm:sw5100_firmware:-:*:*:*:*:*:*:*
qualcomm sw5100p_firmware — cpe:2.3:o:qualcomm:sw5100p_firmware:-:*:*:*:*:*:*:*
qualcomm sxr1120_firmware — cpe:2.3:o:qualcomm:sxr1120_firmware:-:*:*:*:*:*:*:*
qualcomm sxr2130_firmware — cpe:2.3:o:qualcomm:sxr2130_firmware:-:*:*:*:*:*:*:*
qualcomm talynplus_firmware — cpe:2.3:o:qualcomm:talynplus_firmware:-:*:*:*:*:*:*:*
qualcomm vision_intelligence_100_platform_\(apq8053-aa\)_firmware — cpe:2.3:o:qualcomm:vision_intelligence_100_platform_\(apq8053-aa\)_firmware:-:*:*:*:*:*:*:*
qualcomm vision_intelligence_200_platform_\(apq8053-ac\)_firmware — cpe:2.3:o:qualcomm:vision_intelligence_200_platform_\(apq8053-ac\)_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9326_firmware — cpe:2.3:o:qualcomm:wcd9326_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9335_firmware — cpe:2.3:o:qualcomm:wcd9335_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9340_firmware — cpe:2.3:o:qualcomm:wcd9340_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9341_firmware — cpe:2.3:o:qualcomm:wcd9341_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9370_firmware — cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9371_firmware — cpe:2.3:o:qualcomm:wcd9371_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9375_firmware — cpe:2.3:o:qualcomm:wcd9375_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9378_firmware — cpe:2.3:o:qualcomm:wcd9378_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9380_firmware — cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9385_firmware — cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9390_firmware — cpe:2.3:o:qualcomm:wcd9390_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9395_firmware — cpe:2.3:o:qualcomm:wcd9395_firmware:-:*:*:*:*:*:*:*
qualcomm wcn3610_firmware — cpe:2.3:o:qualcomm:wcn3610_firmware:-:*:*:*:*:*:*:*

References for CVE-2025-21483

cvelogic Threat Intelligence