CVE-2025-27053 [High] | Security Vulnerability in 315 5g Iot Modem Firmware

CVE-2025-27053 is rated Low Risk (32/100): CVSS High severity, with low exploitation likelihood (EPSS 0.01%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-10-09	—	0.01%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-10-09

—

0.01%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` 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:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 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:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

5.9

[email protected]

Affected software / configurations for CVE-2025-27053

Vendor	Product	Version	Raw CPE
qualcomm	315_5g_iot_modem_firmware	—	cpe:2.3:o:qualcomm:315_5g_iot_modem_firmware:-:::::::*
qualcomm	9205_lte_modem_firmware	—	cpe:2.3:o:qualcomm:9205_lte_modem_firmware:-:::::::*
qualcomm	9206_lte_modem_firmware	—	cpe:2.3:o:qualcomm:9206_lte_modem_firmware:-:::::::*
qualcomm	9207_lte_modem_firmware	—	cpe:2.3:o:qualcomm:9207_lte_modem_firmware:-:::::::*
qualcomm	apq8017_firmware	—	cpe:2.3:o:qualcomm:apq8017_firmware:-:::::::*
qualcomm	apq8037_firmware	—	cpe:2.3:o:qualcomm:apq8037_firmware:-:::::::*
qualcomm	apq8064au_firmware	—	cpe:2.3:o:qualcomm:apq8064au_firmware:-:::::::*
qualcomm	aqt1000_firmware	—	cpe:2.3:o:qualcomm:aqt1000_firmware:-:::::::*
qualcomm	ar8031_firmware	—	cpe:2.3:o:qualcomm:ar8031_firmware:-:::::::*
qualcomm	ar8035_firmware	—	cpe:2.3:o:qualcomm:ar8035_firmware:-:::::::*
qualcomm	c-v2x_9150_firmware	—	cpe:2.3:o:qualcomm:c-v2x_9150_firmware:-:::::::*
qualcomm	csra6620_firmware	—	cpe:2.3:o:qualcomm:csra6620_firmware:-:::::::*
qualcomm	csra6640_firmware	—	cpe:2.3:o:qualcomm:csra6640_firmware:-:::::::*
qualcomm	csrb31024_firmware	—	cpe:2.3:o:qualcomm:csrb31024_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	flight_rb5_5g_platform_firmware	—	cpe:2.3:o:qualcomm:flight_rb5_5g_platform_firmware:-:::::::*
qualcomm	home_hub_100_platform_firmware	—	cpe:2.3:o:qualcomm:home_hub_100_platform_firmware:-:::::::*
qualcomm	mdm8207_firmware	—	cpe:2.3:o:qualcomm:mdm8207_firmware:-:::::::*
qualcomm	mdm9205s_firmware	—	cpe:2.3:o:qualcomm:mdm9205s_firmware:-:::::::*
qualcomm	mdm9250_firmware	—	cpe:2.3:o:qualcomm:mdm9250_firmware:-:::::::*
qualcomm	mdm9628_firmware	—	cpe:2.3:o:qualcomm:mdm9628_firmware:-:::::::*
qualcomm	mdm9640_firmware	—	cpe:2.3:o:qualcomm:mdm9640_firmware:-:::::::*
qualcomm	mdm9650_firmware	—	cpe:2.3:o:qualcomm:mdm9650_firmware:-:::::::*
qualcomm	msm8996au_firmware	—	cpe:2.3:o:qualcomm:msm8996au_firmware:-:::::::*
qualcomm	pm8937_firmware	—	cpe:2.3:o:qualcomm:pm8937_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	qca4004_firmware	—	cpe:2.3:o:qualcomm:qca4004_firmware:-:::::::*
qualcomm	qca6174a_firmware	—	cpe:2.3:o:qualcomm:qca6174a_firmware:-:::::::*
qualcomm	qca6234_firmware	—	cpe:2.3:o:qualcomm:qca6234_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	qca6421_firmware	—	cpe:2.3:o:qualcomm:qca6421_firmware:-:::::::*
qualcomm	sd730_firmware	—	cpe:2.3:o:qualcomm:sd730_firmware:-:::::::*
qualcomm	sd820_firmware	—	cpe:2.3:o:qualcomm:sd820_firmware:-:::::::*
qualcomm	sd821_firmware	—	cpe:2.3:o:qualcomm:sd821_firmware:-:::::::*
qualcomm	sd855_firmware	—	cpe:2.3:o:qualcomm:sd855_firmware:-:::::::*
qualcomm	sd865_5g_firmware	—	cpe:2.3:o:qualcomm:sd865_5g_firmware:-:::::::*
qualcomm	sd888_firmware	—	cpe:2.3:o:qualcomm:sd888_firmware:-:::::::*
qualcomm	sdm429w_firmware	—	cpe:2.3:o:qualcomm:sdm429w_firmware:-:::::::*
qualcomm	sdx55_firmware	—	cpe:2.3:o:qualcomm:sdx55_firmware:-:::::::*
qualcomm	sdx61_firmware	—	cpe:2.3:o:qualcomm:sdx61_firmware:-:::::::*
qualcomm	sdx82_firmware	—	cpe:2.3:o:qualcomm:sdx82_firmware:-:::::::*
qualcomm	sdx85_firmware	—	cpe:2.3:o:qualcomm:sdx85_firmware:-:::::::*
qualcomm	sg4150p_firmware	—	cpe:2.3:o:qualcomm:sg4150p_firmware:-:::::::*
qualcomm	sg6150_firmware	—	cpe:2.3:o:qualcomm:sg6150_firmware:-:::::::*
qualcomm	sg6150p_firmware	—	cpe:2.3:o:qualcomm:sg6150p_firmware:-:::::::*
qualcomm	sg8275p_firmware	—	cpe:2.3:o:qualcomm:sg8275p_firmware:-:::::::*
qualcomm	sm4125_firmware	—	cpe:2.3:o:qualcomm:sm4125_firmware:-:::::::*
qualcomm	sm4635_firmware	—	cpe:2.3:o:qualcomm:sm4635_firmware:-:::::::*
qualcomm	sm6225p_firmware	—	cpe:2.3:o:qualcomm:sm6225p_firmware:-:::::::*
qualcomm	sm6250_firmware	—	cpe:2.3:o:qualcomm:sm6250_firmware:-:::::::*
qualcomm	sm6250p_firmware	—	cpe:2.3:o:qualcomm:sm6250p_firmware:-:::::::*
qualcomm	sm6370_firmware	—	cpe:2.3:o:qualcomm:sm6370_firmware:-:::::::*
qualcomm	sm6650_firmware	—	cpe:2.3:o:qualcomm:sm6650_firmware:-:::::::*
qualcomm	sm6650p_firmware	—	cpe:2.3:o:qualcomm:sm6650p_firmware:-:::::::*
qualcomm	sm7250p_firmware	—	cpe:2.3:o:qualcomm:sm7250p_firmware:-:::::::*
qualcomm	sm7315_firmware	—	cpe:2.3:o:qualcomm:sm7315_firmware:-:::::::*
qualcomm	sm7325p_firmware	—	cpe:2.3:o:qualcomm:sm7325p_firmware:-:::::::*
qualcomm	sm7635_firmware	—	cpe:2.3:o:qualcomm:sm7635_firmware:-:::::::*
qualcomm	sm7635p_firmware	—	cpe:2.3:o:qualcomm:sm7635p_firmware:-:::::::*
qualcomm	sm7675_firmware	—	cpe:2.3:o:qualcomm:sm7675_firmware:-:::::::*
qualcomm	sm7675p_firmware	—	cpe:2.3:o:qualcomm:sm7675p_firmware:-:::::::*
qualcomm	sm8550p_firmware	—	cpe:2.3:o:qualcomm:sm8550p_firmware:-:::::::*
qualcomm	sm8635_firmware	—	cpe:2.3:o:qualcomm:sm8635_firmware:-:::::::*
qualcomm	sm8635p_firmware	—	cpe:2.3:o:qualcomm:sm8635p_firmware:-:::::::*
qualcomm	sm8650q_firmware	—	cpe:2.3:o:qualcomm:sm8650q_firmware:-:::::::*
qualcomm	sm8735_firmware	—	cpe:2.3:o:qualcomm:sm8735_firmware:-:::::::*

References for CVE-2025-27053

URL	Tags
https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2025-bulletin.html	Vendor Advisory

URL

CVE-2025-27053 | Incorrect Calculation of Buffer Size in HLOS

Exploit prediction scoring system (EPSS) score for CVE-2025-27053

Common vulnerability scoring system (CVSS) metrics for CVE-2025-27053

Weakness enumeration for CVE-2025-27053

Affected software / configurations for CVE-2025-27053

References for CVE-2025-27053