CVE-2025-39846: debian debian_linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified

AliasesUBUNTU-CVE-2025-39846DEBIAN-CVE-2025-39846

Published 19-09-2025Last modified 12-05-2026

Vulnerability summary

CVE-2025-39846 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.2% of scored vulnerabilities.

Overall risk

22/100

0100

Low · default modelHow is this calculated?

CVSS score

5.5/10

010

Medium · v3.1 (NVD)

EPSS score

0.16%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Timeline

19-09-2025
PublishedVulnerability first disclosed.
12-05-2026
Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region() In __iodyn_find_io_region(), pcmcia_make_resource() is assigned to res and used in pci_bus_alloc_resource(). There is a dereference of res in pci_bus_alloc_resource(), which could lead to a NULL pointer dereference on failure of pcmcia_make_resource(). Fix this bug by adding a check of res.

CVSS metrics

3 scores · 3 sources · 1 version

v3.15.5

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 20-09-2026

20-09-202620-10-2026

EPSS score

0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-476NULL Pointer DereferenceThe product dereferences a pointer that it expects to be valid but is NULL.

Affected systems

Ubuntu148 products

linuxAll versions (No fix recorded) | < 5.15.0-163.173 | < 6.8.0-106.106
linux-allwinner-5.19All versions (No fix recorded)
linux-awsAll versions (No fix recorded) | < 5.15.0-1097.104 | < 6.8.0-1050.53
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.15< 5.15.0-1097.104~20.04.1
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.14All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-aws-6.5All versions (No fix recorded)
linux-aws-6.8< 6.8.0-1050.53~22.04.1
linux-aws-fipsAll versions (No fix recorded) | < 5.15.0-1097.104+fips1 | < 6.8.0-1050.53+fips1
linux-aws-hweAll versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.15.0-1101.110 | < 6.8.0-1051.57
linux-azure-4.15All versions (No fix recorded)
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1102.111~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.11All versions (No fix recorded)
linux-azure-6.14All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-6.5All versions (No fix recorded)
linux-azure-6.8< 6.8.0-1051.57~22.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1102.111.1 | < 6.8.0-1058.65
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.14All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fde-6.8< 6.8.0-1058.65~22.04.1
linux-azure-fipsAll versions (No fix recorded) | < 5.15.0-1101.110+fips1 | < 6.8.0-1052.58+fips1
linux-azure-nvidiaAll versions (No fix recorded)
linux-azure-nvidia-6.14All versions (No fix recorded)
linux-bluefieldAll versions (No fix recorded) | < 5.15.0-1081.83 | < 6.8.0-1017.21
linux-fipsAll versions (No fix recorded) | < 5.15.0-163.173+fips1 | < 6.8.0-106.106+fips1
linux-gcpAll versions (No fix recorded) | < 5.15.0-1097.106 | < 6.8.0-1052.55
linux-gcp-4.15All versions (No fix recorded)
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1097.106~20.04.1
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.11All versions (No fix recorded)
linux-gcp-6.14All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-6.5All versions (No fix recorded)
linux-gcp-6.8< 6.8.0-1052.55~22.04.1
linux-gcp-fipsAll versions (No fix recorded) | < 5.15.0-1097.106+fips1 | < 6.8.0-1052.55+fips1
linux-gkeAll versions (No fix recorded) | < 5.15.0-1093.99 | < 6.8.0-1048.53
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeopAll versions (No fix recorded) | < 5.15.0-1080.88 | < 6.8.0-1035.38
linux-gkeop-5.15All versions (No fix recorded)
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-163.173~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4All versions (No fix recorded)
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.11All versions (No fix recorded)
linux-hwe-6.14All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-6.5All versions (No fix recorded)
linux-hwe-6.8< 6.8.0-106.106~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibmAll versions (No fix recorded) | < 5.15.0-1091.94 | < 6.8.0-1049.49
linux-ibm-5.15< 5.15.0-1091.94~20.04.1
linux-ibm-5.4All versions (No fix recorded)
linux-ibm-6.8< 6.8.0-1049.49~22.04.1
linux-intelAll versions (No fix recorded)
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded) | < 5.15.0-1089.91
linux-intel-iotg< 5.15.0-1092.98
linux-intel-iotg-5.15< 5.15.0-1092.98~20.04.1
linux-iotAll versions (No fix recorded)
linux-kvmAll versions (No fix recorded) | < 5.15.0-1089.94
linux-lowlatency< 5.15.0-163.173 | < 6.8.0-106.106.1
linux-lowlatency-hwe-5.15< 5.15.0-163.173~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.11All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lowlatency-hwe-6.5All versions (No fix recorded)
linux-lowlatency-hwe-6.8< 6.8.0-106.106.1~22.04.1
linux-lts-xenialAll versions (No fix recorded)
linux-nvidia< 5.15.0-1092.93 | < 6.8.0-1049.52
linux-nvidia-6.11All versions (No fix recorded)
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-6.5All versions (No fix recorded)
linux-nvidia-6.8< 6.8.0-1049.52~22.04.1
linux-nvidia-lowlatency< 6.8.0-1049.52.1
linux-nvidia-tegra< 5.15.0-1049.49 | < 6.8.0-1020.20
linux-nvidia-tegra-5.15< 5.15.0-1049.49~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1038.38
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.1All versions (No fix recorded)
linux-oem-6.11All versions (No fix recorded)
linux-oem-6.14All versions (No fix recorded)
linux-oem-6.5All versions (No fix recorded)
linux-oem-6.8All versions (No fix recorded)
linux-oracleAll versions (No fix recorded) | < 5.15.0-1094.100 | < 6.8.0-1047.48
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1094.100~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-oracle-6.14All versions (No fix recorded)
linux-oracle-6.5All versions (No fix recorded)
linux-oracle-6.8< 6.8.0-1047.48~22.04.1
linux-raspiAll versions (No fix recorded) | < 5.15.0-1091.94 | < 6.8.0-1050.54
linux-raspi-5.4All versions (No fix recorded)
linux-raspi-realtimeAll versions (No fix recorded) | < 6.8.0-2040.41
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1096.105 | < 6.8.1-1045.46
linux-realtime-6.14All versions (No fix recorded)
linux-realtime-6.8< 6.8.1-1045.46~22.04.1
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1092.96~20.04.1
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-riscv-6.14All versions (No fix recorded)
linux-riscv-6.5All versions (No fix recorded)
linux-riscv-6.8< 6.8.0-106.106~22.04.1
linux-starfive-5.19All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-starfive-6.5All versions (No fix recorded)
linux-xilinx< 6.8.0-1028.29
linux-xilinx-zynqmpAll versions (No fix recorded) | < 5.15.0-1061.65

Show all 148

Debian2 products

linux< 6.1.153-1 | < 6.12.48-1 | < 6.16.6-1
debian_linuxEOL11.0

Linux2 products

linux≥ 49b1153adfe18a3cce7e70aa26c690f275917cd0, < b990c8c6ff50649ad3352507398e443b1e3527b2 | ≥ 49b1153adfe18a3cce7e70aa26c690f275917cd0, < 5ff2826c998370bf7f9ae26fe802140d220e3510 | ≥ 49b1153adfe18a3cce7e70aa26c690f275917cd0, < 4bd570f494124608a0696da070f00236a96fb610 | ≥ 49b1153adfe18a3cce7e70aa26c690f275917cd0, < ce3b7766276894d2fbb07e2047a171f9deb965de | ≥ 49b1153adfe18a3cce7e70aa26c690f275917cd0, < 2ee32c4c4f636e474cd8ab7c19a68cf36072ea93 | ≥ 49b1153adfe18a3cce7e70aa26c690f275917cd0, < fafa7450075f41d232bc785a4ebcbf16374f2076 | ≥ 49b1153adfe18a3cce7e70aa26c690f275917cd0, < d7286005e8fde0a430dc180a9f46c088c7d74483 | ≥ 49b1153adfe18a3cce7e70aa26c690f275917cd0, < 44822df89e8f3386871d9cad563ece8e2fd8f0e7 | 2.6.35
linux_kernel≥ 2.6.35, < 5.4.299 | ≥ 5.5, < 5.10.243 | ≥ 5.11, < 5.15.192 | ≥ 5.16, < 6.1.151 | ≥ 6.2, < 6.6.105 | ≥ 6.7, < 6.12.46 | ≥ 6.13, < 6.16.6 | 6.17:rc1 | 6.17:rc2 | 6.17:rc3 | 6.17:rc4

3 vendors · 152 products