CVE-2022-40307: debian debian_linux

Modified

AliasesUBUNTU-CVE-2022-40307DEBIAN-CVE-2022-40307

Published 09-09-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-40307 is a medium (CVSS 4.7) vulnerability in debian debian_linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.6% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

4.7/10

010

Medium · v3.1 (NVD)

EPSS score

0.21%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

09-09-2022
PublishedVulnerability first disclosed.
14-10-2026
Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free.

CVSS metrics

3 scores · 3 sources · 1 version

v3.14.7

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu83 products

linux< 4.15.0-201.212 | < 5.4.0-136.153 | < 5.15.0-57.63
linux-aws< 4.15.0-1147.159 | < 5.4.0-1093.101 | < 5.15.0-1027.31
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< 5.15.0-1027.31~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1093.102~18.04.2
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2087.93 | All versions (No fix recorded) | < 5.4.0-1093.101+fips1
linux-aws-hwe< 4.15.0-1147.159~16.04.1
linux-azure< 4.15.0-1158.173~14.04.1 | < 4.15.0-1159.174~16.04.1 | All versions (No fix recorded) | < 5.4.0-1100.106 | < 5.15.0-1030.37
linux-azure-4.15< 4.15.0-1158.173
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1030.37~20.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1100.106~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1030.37.1
linux-azure-fips< 4.15.0-2067.73 | All versions (No fix recorded) | < 5.4.0-1100.106+fips1
linux-bluefield< 5.4.0-1054.60
linux-dell300x< 4.15.0-1058.63
linux-fips< 4.15.0-1104.115 | All versions (No fix recorded) | < 5.4.0-1069.78
linux-gcp< 4.15.0-1142.158~16.04.1 | All versions (No fix recorded) | < 5.4.0-1097.106 | < 5.15.0-1026.33
linux-gcp-4.15< 4.15.0-1142.158
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1027.34~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1097.106~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2052.57 | All versions (No fix recorded) | < 5.4.0-1097.106+fips1
linux-gke< 5.4.0-1091.98 | < 5.15.0-1024.29
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1027.32~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1061.65 | < 5.15.0-1012.16
linux-gkeop-5.15< 5.15.0-1012.16~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hwe< 4.15.0-201.212~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-57.63~20.04.1
linux-hwe-5.4< 5.4.0-136.153~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1041.46 | < 5.15.0-1022.25
linux-ibm-5.4< 5.4.0-1041.46~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-intel-iotg< 5.15.0-1023.28
linux-intel-iotg-5.15< 5.15.0-1023.28~20.04.1
linux-iot< 5.4.0-1010.12
linux-kvm< 4.15.0-1133.138 | < 5.4.0-1083.89 | < 5.15.0-1025.30
linux-lowlatency< 5.15.0-57.63
linux-lowlatency-hwe-5.15< 5.15.0-58.64~20.04.1
linux-nvidia< 5.15.0-1015.15
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-5.17< 5.17.0-1031.32
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 4.15.0-1112.123~16.04.1 | < 4.15.0-1112.123 | < 5.4.0-1091.100 | < 5.15.0-1026.32
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< 5.15.0-1027.33~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1091.100~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1078.89 | < 5.15.0-1022.24
linux-raspi-5.4< 5.4.0-1078.89~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1125.133 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1029.32
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1027.31~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1143.153