CVE-2025-40020: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2025-40020DEBIAN-CVE-2025-40020
Published 24-10-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-40020 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.7% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.21%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 44 · Related 39
DLA-4379-1DLA-4404-1DSA-6053-1MGASA-2025-0309MGASA-2025-0310OPENSUSE-SU-2025:20091-1

Timeline

  1. 24-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix shift-out-of-bounds issue Explicitly uses a 64-bit constant when the number of bits used for its shifting is 32 (which is the case for PC CAN FD interfaces supported by this driver). [mkl: update subject, apply manually]

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

+0.01 pp

From 0.20% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

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

No weakness data has been published for this record.

Affected systems

Ubuntu147 products
  • linuxAll versions (No fix recorded) | < 5.15.0-170.180 | < 6.8.0-106.106 | < 6.17.0-6.6
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1100.107 | < 6.8.0-1050.53 | < 6.17.0-1003.3
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.158-1 | < 6.12.57-1 | < 6.16.10-1
Linux1 product
  • linux≥ bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d, < 572c656802781cc57f4a3231eefa83547e75ed78 | ≥ bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d, < 61b1dd4c614935169d12bdecc26906e37b508618 | ≥ bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d, < 48822a59ecc47d353400d38b1941d3ae7591ffff | ≥ bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d, < 176c81cbf9c4e348610a421aad800087c0401f60 | ≥ bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d, < 17edec1830e48c0becd61642d0e40bc753243b16 | ≥ bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d, < eb79ed970670344380e77d62f8188e8015648d94 | ≥ bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d, < 394c58017e5f41043584c345106cae16a4613710 | ≥ bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d, < c443be70aaee42c2d1d251e0329e0a69dd96ae54 | 3.4

3 vendors · 149 products

References

37 links
Show all 37 references