CVE-2025-47403 | Buffer Over-read in WLAN Firmware

Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.

Published: 2026-05-04 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-47403 is rated Low Risk (30.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.22%). Mandatory action: 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-2025-47403

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 0.02% 0.22% +0.20%
2 2026-05-05 0.02%

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-47403

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 3.6 [email protected]

Weakness enumeration for CVE-2025-47403

GitHub Security Advisory for CVE-2025-47403

GHSA-w77j-cqm5-vgh4 · Severity: medium — Transient DOS when processing a malformed Fast Transition response frame with an invalid header...

Affected software / configurations for CVE-2025-47403

Vendor Product Version Raw CPE
qualcomm snapdragon_x65_5g_modem-rf_firmware cpe:2.3:o:qualcomm:snapdragon_x65_5g_modem-rf_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_x72_5g_modem-rf_firmware cpe:2.3:o:qualcomm:snapdragon_x72_5g_modem-rf_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_x75_5g_modem-rf_firmware cpe:2.3:o:qualcomm:snapdragon_x75_5g_modem-rf_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 sxr2330p_firmware cpe:2.3:o:qualcomm:sxr2330p_firmware:-:*:*:*:*:*:*:*
qualcomm sxr2350p_firmware cpe:2.3:o:qualcomm:sxr2350p_firmware:-:*:*:*:*:*:*:*
qualcomm trestles_firmware cpe:2.3:o:qualcomm:trestles_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9340_firmware cpe:2.3:o:qualcomm:wcd9340_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 wcd9378c_firmware cpe:2.3:o:qualcomm:wcd9378c_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 wcn3950_firmware cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:*
qualcomm wcn3988_firmware cpe:2.3:o:qualcomm:wcn3988_firmware:-:*:*:*:*:*:*:*
qualcomm wcn6450_firmware cpe:2.3:o:qualcomm:wcn6450_firmware:-:*:*:*:*:*:*:*
qualcomm wcn6650_firmware cpe:2.3:o:qualcomm:wcn6650_firmware:-:*:*:*:*:*:*:*
qualcomm wcn6755_firmware cpe:2.3:o:qualcomm:wcn6755_firmware:-:*:*:*:*:*:*:*
qualcomm wcn7760_firmware cpe:2.3:o:qualcomm:wcn7760_firmware:-:*:*:*:*:*:*:*
qualcomm wcn7860_firmware cpe:2.3:o:qualcomm:wcn7860_firmware:-:*:*:*:*:*:*:*
qualcomm wcn7861_firmware cpe:2.3:o:qualcomm:wcn7861_firmware:-:*:*:*:*:*:*:*
qualcomm wcn7880_firmware cpe:2.3:o:qualcomm:wcn7880_firmware:-:*:*:*:*:*:*:*
qualcomm wcn7881_firmware cpe:2.3:o:qualcomm:wcn7881_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8810_firmware cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8815_firmware cpe:2.3:o:qualcomm:wsa8815_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 wsa8840_firmware cpe:2.3:o:qualcomm:wsa8840_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8845_firmware cpe:2.3:o:qualcomm:wsa8845_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8845h_firmware cpe:2.3:o:qualcomm:wsa8845h_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8850_firmware cpe:2.3:o:qualcomm:wsa8850_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8850w_firmware cpe:2.3:o:qualcomm:wsa8850w_firmware:-:*:*:*:*:*:*:*
qualcomm ar8035_firmware cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:*
qualcomm cologne_firmware cpe:2.3:o:qualcomm:cologne_firmware:-:*:*:*:*:*:*:*
qualcomm cq7790_firmware cpe:2.3:o:qualcomm:cq7790_firmware:-:*:*:*:*:*:*:*
qualcomm cq8725s_firmware cpe:2.3:o:qualcomm:cq8725s_firmware:-:*:*:*:*:*:*:*
qualcomm cq8750m_firmware cpe:2.3:o:qualcomm:cq8750m_firmware:-:*:*:*:*:*:*:*
qualcomm csr8811_firmware cpe:2.3:o:qualcomm:csr8811_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_6900_firmware cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
qualcomm fastconnect_7800_firmware cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
qualcomm fwa_gen_3_ultra_firmware cpe:2.3:o:qualcomm:fwa_gen_3_ultra_firmware:-:*:*:*:*:*:*:*
qualcomm fwa_gen_5_elite_firmware cpe:2.3:o:qualcomm:fwa_gen_5_elite_firmware:-:*:*:*:*:*:*:*
qualcomm g2_gen_1_firmware cpe:2.3:o:qualcomm:g2_gen_1_firmware:-:*:*:*:*:*:*:*
qualcomm g3x_gen_2_firmware cpe:2.3:o:qualcomm:g3x_gen_2_firmware:-:*:*:*:*:*:*:*
qualcomm immersive_home_214_firmware cpe:2.3:o:qualcomm:immersive_home_214_firmware:-:*:*:*:*:*:*:*
qualcomm immersive_home_216_firmware cpe:2.3:o:qualcomm:immersive_home_216_firmware:-:*:*:*:*:*:*:*
qualcomm immersive_home_316_firmware cpe:2.3:o:qualcomm:immersive_home_316_firmware:-:*:*:*:*:*:*:*
qualcomm immersive_home_318_firmware cpe:2.3:o:qualcomm:immersive_home_318_firmware:-:*:*:*:*:*:*:*
qualcomm immersive_home_3210_firmware cpe:2.3:o:qualcomm:immersive_home_3210_firmware:-:*:*:*:*:*:*:*
qualcomm immersive_home_326_firmware cpe:2.3:o:qualcomm:immersive_home_326_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5010_firmware cpe:2.3:o:qualcomm:ipq5010_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5028_firmware cpe:2.3:o:qualcomm:ipq5028_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5300_firmware cpe:2.3:o:qualcomm:ipq5300_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5302_firmware cpe:2.3:o:qualcomm:ipq5302_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5312_firmware cpe:2.3:o:qualcomm:ipq5312_firmware:-:*:*:*:*:*:*:*
qualcomm ipq5332_firmware cpe:2.3:o:qualcomm:ipq5332_firmware:-:*:*:*:*:*:*:*
qualcomm ipq6000_firmware cpe:2.3:o:qualcomm:ipq6000_firmware:-:*:*:*:*:*:*:*
qualcomm ipq6010_firmware cpe:2.3:o:qualcomm:ipq6010_firmware:-:*:*:*:*:*:*:*
qualcomm ipq6018_firmware cpe:2.3:o:qualcomm:ipq6018_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8076_firmware cpe:2.3:o:qualcomm:ipq8076_firmware:-:*:*:*:*:*:*:*
qualcomm ipq8078_firmware cpe:2.3:o:qualcomm:ipq8078_firmware:-:*:*:*:*:*:*:*
qualcomm ipq9008_firmware cpe:2.3:o:qualcomm:ipq9008_firmware:-:*:*:*:*:*:*:*
qualcomm ipq9554_firmware cpe:2.3:o:qualcomm:ipq9554_firmware:-:*:*:*:*:*:*:*
qualcomm ipq9570_firmware cpe:2.3:o:qualcomm:ipq9570_firmware:-:*:*:*:*:*:*:*
qualcomm ipq9574_firmware cpe:2.3:o:qualcomm:ipq9574_firmware:-:*:*:*:*:*:*:*
qualcomm iqx5121_firmware cpe:2.3:o:qualcomm:iqx5121_firmware:-:*:*:*:*:*:*:*
qualcomm iqx7181_firmware cpe:2.3:o:qualcomm:iqx7181_firmware:-:*:*:*:*:*:*:*
qualcomm kobuk_firmware cpe:2.3:o:qualcomm:kobuk_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:-:*:*:*:*:*:*:*

References for CVE-2025-47403

cvelogic Threat Intelligence