CVE-2025-40200: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2025-40200DEBIAN-CVE-2025-40200
Published 12-11-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-40200 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 10.5% 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 47 · Related 45
DLA-4379-1DLA-4404-1OPENSUSE-SU-2025:20172-1SUSE-SU-2025:4393-1SUSE-SU-2025:4422-1SUSE-SU-2025:4505-1

Timeline

  1. 12-11-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfs_read_inode() Syskaller reports a "WARNING in ovl_copy_up_file" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative file size. This commit checks for a negative file size and returns EINVAL. [phillip@squashfs.org.uk: only need to check 64 bit quantity]

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 0.19% on 20-09-2026

20-09-202620-10-2026
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

Ubuntu153 products
  • linuxAll versions (No fix recorded) | < 5.15.0-170.180 | < 6.8.0-106.106 | < 6.17.0-14.14
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1100.107 | < 6.8.0-1050.53 | < 6.17.0-1007.7
  • 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 | < 6.17.6-1
Linux1 product
  • linux≥ 6545b246a2c815a8fcd07d58240effb6ec3481b1, < 54170057a5fadd24a37b70de41e61d39284d9bd7 | ≥ 6545b246a2c815a8fcd07d58240effb6ec3481b1, < 2871c74caa3f4f05b429e6bfefebac62dbf1b408 | ≥ 6545b246a2c815a8fcd07d58240effb6ec3481b1, < fbfc745db628de31f5c089147deeb87e95b89e66 | ≥ 6545b246a2c815a8fcd07d58240effb6ec3481b1, < 8118f66124895829443d09c207e654adcb2f9321 | ≥ 6545b246a2c815a8fcd07d58240effb6ec3481b1, < 8c7aad76751816207fee556d44aa88a710824810 | ≥ 6545b246a2c815a8fcd07d58240effb6ec3481b1, < 875fb3f87ae0225b881319ba016a1a8c4ffd5812 | ≥ 6545b246a2c815a8fcd07d58240effb6ec3481b1, < f271155ff31aca8ef82c61c8df23ca97e9a77dd4 | ≥ 6545b246a2c815a8fcd07d58240effb6ec3481b1, < 9f1c14c1de1bdde395f6cc893efa4f80a2ae3b2b | 2.6.29

3 vendors · 155 products

References

42 links
Show all 42 references