Is CVE-2025-39952 in the CISA KEV catalog?

No. CVE-2025-39952 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-39952?

CVE-2025-39952 has a CVSS v3 base score of 7.8 (Important).

What is the EPSS score for CVE-2025-39952?

CVE-2025-39952 has an EPSS score of 0.16% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-39952?

Upgrade linux on debian 13 to 6.12.57-1 or later. Fixes are available for 139 affected products.

CVE & CISA-KEV Catalog

CVE-2025-39952

HIGH

7.8

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: avoid buffer overflow in WID string configuration Fix the following copy overflow warning identified by Smatch checker. drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame() error: '__memcpy()' 'cfg->s[i]->str' copy overflow (512 vs 65537) This patch introduces size check before accessing the memory buffer. The checks are base on the WID type of received data from the firmware. For WID string configuration, the size limit is determined by individual element size in 'struct wilc_cfg_str_vals' that is maintained in 'len' field of 'struct wilc_cfg_str'.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.57-1CVE-2025-39952

Fixed in:6.16.9-1CVE-2025-39952

linuxUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-awsUbuntu

Fixed in:6.8.0-1050.53USN-8095-1

linux-aws-6.8Ubuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

linux-aws-fipsUbuntu

Fixed in:6.8.0-1050.53+fips1USN-8095-2

linux-azureUbuntu

Fixed in:6.8.0-1051.57USN-8125-1

linux-azure-6.8Ubuntu

Fixed in:6.8.0-1051.57~22.04.1USN-8126-1

linux-azure-fipsUbuntu

Fixed in:6.8.0-1052.58+fips1USN-8165-1

linux-fipsUbuntu

Fixed in:6.8.0-106.106+fips1USN-8095-2

linux-gcpUbuntu

Fixed in:6.8.0-1052.55USN-8095-1

linux-gcp-6.8Ubuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

linux-gcp-fipsUbuntu

Fixed in:6.8.0-1052.55+fips1USN-8095-2

linux-gkeUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-gkeopUbuntu

Fixed in:6.8.0-1035.38USN-8095-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-ibmUbuntu

Fixed in:6.8.0-1049.49USN-8095-1

linux-ibm-6.8Ubuntu

Fixed in:6.8.0-1049.49~22.04.1USN-8095-1

linux-image-6.8.0-1029-xilinxUbuntu

Fixed in:6.8.0-1029.30USN-8261-1

linux-image-6.8.0-1035-gkeopUbuntu

Fixed in:6.8.0-1035.38USN-8095-1

linux-image-6.8.0-1047-oracleUbuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-6.8.0-1047-oracle-64kUbuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-6.8.0-1048-gkeUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-6.8.0-1048-gke-64kUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-6.8.0-1049-ibmUbuntu

Fixed in:6.8.0-1049.49~22.04.1USN-8095-1

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-6.8.0-1049-nvidiaUbuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-6.8.0-1049-nvidia-64kUbuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-6.8.0-1049-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-6.8.0-1049-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-6.8.0-1050-awsUbuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-6.8.0-1050-aws-64kUbuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-6.8.0-1050-aws-fipsUbuntu

Fixed in:6.8.0-1050.53+fips1USN-8095-2

linux-image-6.8.0-1050-raspiUbuntu

Fixed in:6.8.0-1050.54USN-8095-5

linux-image-6.8.0-1051-azureUbuntu

Fixed in:6.8.0-1051.57~22.04.1USN-8126-1

Fixed in:6.8.0-1051.57USN-8125-1

linux-image-6.8.0-1052-azure-fipsUbuntu

Fixed in:6.8.0-1052.58+fips1USN-8165-1

linux-image-6.8.0-1052-gcpUbuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-6.8.0-1052-gcp-64kUbuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-6.8.0-1052-gcp-fipsUbuntu

Fixed in:6.8.0-1052.55+fips1USN-8095-2

linux-image-6.8.0-106-fipsUbuntu

Fixed in:6.8.0-106.106+fips1USN-8095-2

linux-image-6.8.0-106-genericUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-6.8.0-106-generic-64kUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-6.8.0-106-lowlatencyUbuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-6.8.0-106-lowlatency-64kUbuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-6.8.0-2040-raspi-realtimeUbuntu

Fixed in:6.8.0-2040.41USN-8095-5

linux-image-6.8.1-1045-realtimeUbuntu

Fixed in:6.8.1-1045.46~22.04.1USN-8095-3

Fixed in:6.8.1-1045.46USN-8095-3

linux-image-awsUbuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

linux-image-aws-6.8Ubuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-aws-64kUbuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

linux-image-aws-64k-6.8Ubuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-aws-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-aws-fipsUbuntu

Fixed in:6.8.0-1050.53+fips1USN-8095-2

linux-image-aws-fips-6.8Ubuntu

Fixed in:6.8.0-1050.53+fips1USN-8095-2

linux-image-aws-lts-24.04Ubuntu

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-azureUbuntu

Fixed in:6.8.0-1051.57~22.04.1USN-8126-1

linux-image-azure-6.8Ubuntu

Fixed in:6.8.0-1051.57~22.04.1USN-8126-1

Fixed in:6.8.0-1051.57USN-8125-1

linux-image-azure-fipsUbuntu

Fixed in:6.8.0-1052.58+fips1USN-8165-1

linux-image-azure-fips-6.8Ubuntu

Fixed in:6.8.0-1052.58+fips1USN-8165-1

linux-image-azure-lts-24.04Ubuntu

Fixed in:6.8.0-1051.57USN-8125-1

linux-image-fipsUbuntu

Fixed in:6.8.0-106.106+fips1USN-8095-2

linux-image-fips-6.8Ubuntu

Fixed in:6.8.0-106.106+fips1USN-8095-2

linux-image-gcpUbuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

linux-image-gcp-6.8Ubuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-gcp-64kUbuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

linux-image-gcp-64k-6.8Ubuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-gcp-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-gcp-fipsUbuntu

Fixed in:6.8.0-1052.55+fips1USN-8095-2

linux-image-gcp-fips-6.8Ubuntu

Fixed in:6.8.0-1052.55+fips1USN-8095-2

linux-image-gcp-lts-24.04Ubuntu

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-genericUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-generic-6.8Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-generic-64k-6.8Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-gke-6.8Ubuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-gke-64kUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-gke-64k-6.8Ubuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-gkeopUbuntu

Fixed in:6.8.0-1035.38USN-8095-1

linux-image-gkeop-6.8Ubuntu

Fixed in:6.8.0-1035.38USN-8095-1

linux-image-ibmUbuntu

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-ibm-6.8Ubuntu

Fixed in:6.8.0-1049.49~22.04.1USN-8095-1

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-intel-iot-realtimeUbuntu

Fixed in:6.8.1-1045.46USN-8095-3

linux-image-intel-iotgUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-kvmUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-lowlatency-6.8Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-lowlatency-64k-6.8Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-nvidia-lowlatency-6.8Ubuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-nvidia-lowlatency-64k-6.8Ubuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-22.04aUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-22.04bUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-22.04cUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-22.04dUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

linux-image-oracle-6.8Ubuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

linux-image-oracle-64k-6.8Ubuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-oracle-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-oracle-lts-24.04Ubuntu

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-raspiUbuntu

Fixed in:6.8.0-1050.54USN-8095-5

linux-image-raspi-6.8Ubuntu

Fixed in:6.8.0-1050.54USN-8095-5

linux-image-raspi-realtimeUbuntu

Fixed in:6.8.0-2040.41USN-8095-5

linux-image-raspi-realtime-6.8Ubuntu

Fixed in:6.8.0-2040.41USN-8095-5

linux-image-realtimeUbuntu

Fixed in:6.8.1-1045.46USN-8095-3

linux-image-realtime-6.8.1Ubuntu

Fixed in:6.8.1-1045.46~22.04.1USN-8095-3

Fixed in:6.8.1-1045.46USN-8095-3

linux-image-realtime-hwe-22.04Ubuntu

Fixed in:6.8.1-1045.46~22.04.1USN-8095-3

linux-image-virtualUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-virtual-6.8Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-xilinxUbuntu

Fixed in:6.8.0.1029.30USN-8261-1

linux-image-xilinx-6.8Ubuntu

Fixed in:6.8.0.1029.30USN-8261-1

linux-image-xilinx-zynqmpUbuntu

Fixed in:6.8.0.1029.30USN-8261-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-106.106.1USN-8095-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1049.52USN-8100-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-oracleUbuntu

Fixed in:6.8.0-1047.48USN-8095-1

linux-oracle-6.8Ubuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

linux-raspiUbuntu

Fixed in:6.8.0-1050.54USN-8095-5

linux-raspi-realtimeUbuntu

Fixed in:6.8.0-2040.41USN-8095-5

linux-realtimeUbuntu

Fixed in:6.8.1-1045.46USN-8095-3

linux-realtime-6.8Ubuntu

Fixed in:6.8.1-1045.46~22.04.1USN-8095-3

linux-xilinxUbuntu

Fixed in:6.8.0-1029.30USN-8261-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.16%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Patch4

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-23.