CVE-2026-25271 | Time-of-check Time-of-use (TOCTOU) Race Condition in DSP Service

Memory Corruption when processing asynchronous input parameters due to improper handling of modified values between check and use.

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

CVE-2026-25271 is rated Low Risk (31.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.09%). 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-2026-25271

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 — 0.09% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-25271

CVSS metrics for this CVE.

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]
7.0 3.1 HIGH
CVSS:3.1/AV:L/AC:H/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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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.
 1.0 5.9 [email protected]

Weakness enumeration for CVE-2026-25271

GitHub Security Advisory for CVE-2026-25271

GHSA-hmx9-2rg5-jc4p · Severity: high — Memory Corruption when processing asynchronous input parameters due to improper handling of...

Affected software / configurations for CVE-2026-25271

Vendor Product Version Raw CPE
qualcomm cologne_firmware — cpe:2.3:o:qualcomm:cologne_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 iqx5121_firmware — cpe:2.3:o:qualcomm:iqx5121_firmware:-:*:*:*:*:*:*:*
qualcomm iqx7181_firmware — cpe:2.3:o:qualcomm:iqx7181_firmware:-:*:*:*:*:*:*:*
qualcomm qca0000_firmware — cpe:2.3:o:qualcomm:qca0000_firmware:-:*:*:*:*:*:*:*
qualcomm sc8380xp_firmware — cpe:2.3:o:qualcomm:sc8380xp_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 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 x2000077_firmware — cpe:2.3:o:qualcomm:x2000077_firmware:-:*:*:*:*:*:*:*
qualcomm x2000086_firmware — cpe:2.3:o:qualcomm:x2000086_firmware:-:*:*:*:*:*:*:*
qualcomm x2000090_firmware — cpe:2.3:o:qualcomm:x2000090_firmware:-:*:*:*:*:*:*:*
qualcomm x2000092_firmware — cpe:2.3:o:qualcomm:x2000092_firmware:-:*:*:*:*:*:*:*
qualcomm x2000094_firmware — cpe:2.3:o:qualcomm:x2000094_firmware:-:*:*:*:*:*:*:*
qualcomm xg101002_firmware — cpe:2.3:o:qualcomm:xg101002_firmware:-:*:*:*:*:*:*:*
qualcomm xg101032_firmware — cpe:2.3:o:qualcomm:xg101032_firmware:-:*:*:*:*:*:*:*
qualcomm xg101039_firmware — cpe:2.3:o:qualcomm:xg101039_firmware:-:*:*:*:*:*:*:*

References for CVE-2026-25271

cvelogic Threat Intelligence