Cyber Resilience

CVE-2026-25271

Race Condition in Qualcomm Cologne Firmware

Race Condition
Published
06 July 2026
Modified
07 July 2026
Patch / advisory
View advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.00052 0.0th percentile
Risk Priority 53 floored blend · peak EPSS

Summary

CVE-2026-25271 is a high-severity Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367) vulnerability in Qualcomm Cologne Firmware. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked at the 0.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-25 (Reference Monitor) and AC-3 (Access Enforcement) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

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

CWE(s)
CWE-367

Related Threats

MITRE ATT&CK Enterprise Techniques

T1034 Path Interception Persistence
**This technique has been deprecated.
attack.mitre.org →
T1548 Abuse Elevation Control Mechanism Privilege Escalation
Adversaries may circumvent mechanisms designed to control privilege elevation to gain higher-level permissions.
attack.mitre.org →
T1574 Hijack Execution Flow Stealth
Adversaries may execute their own malicious payloads by hijacking the way operating systems run programs.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-25260Same product: Qualcomm Cologne
CVE-2024-45560Same product: Qualcomm Fastconnect 6900
CVE-2024-38407Same product: Qualcomm Fastconnect 6900
CVE-2024-38406Same product: Qualcomm Fastconnect 6900
CVE-2025-47407Same product: Qualcomm Fastconnect 6900
CVE-2024-38418Same product: Qualcomm Fastconnect 6900
CVE-2023-33119Same product: Qualcomm Fastconnect 6900
CVE-2025-21431Same vendor: Qualcomm
CVE-2024-53032Same vendor: Qualcomm
CVE-2024-53028Same vendor: Qualcomm

Affected Assets

qualcomm
cologne firmware
all versions
qualcomm
fastconnect 6900 firmware
all versions
qualcomm
fastconnect 7800 firmware
all versions
qualcomm
iqx5121 firmware
all versions
qualcomm
iqx7181 firmware
all versions
qualcomm
qca0000 firmware
all versions
qualcomm
sc8380xp firmware
all versions
qualcomm
wcd9378c firmware
all versions
qualcomm
wcd9380 firmware
all versions
qualcomm
wcd9385 firmware
all versions
+11 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V15.4.2
  • V17.2.6

Mitigating Controls (NIST 800-53 r5) AI

AC-25 Reference Monitor good match

A reference monitor that is always invoked and analyzable structurally eliminates the non-atomic check-then-use pattern underlying TOCTOU.

AC-3 Access Enforcement partial match

Access enforcement that performs an atomic check-and-use decision directly stops the window in which a TOCTOU race can be exploited.

SC-39 Process Isolation partial match

Process isolation limits the blast radius of a successful TOCTOU exploitation but does not remove the race itself.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly include coding standards and reviews that prevent TOCTOU race conditions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.17 Clock synchronization none match
none

Reliable, synchronized time across systems narrows the exploitable window in which a resource state can change between a security check and its use.

References