CVE-2025-68288: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2025-68288DEBIAN-CVE-2025-68288
Published 16-12-2025Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2025-68288 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 9.8% 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 · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 29 · Related 26
DLA-4436-1MGASA-2026-0017MGASA-2026-0018USN-8094-1USN-8094-2USN-8094-3

Timeline

  1. 16-12-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: usb: storage: Fix memory leak in USB bulk transport A kernel memory leak was identified by the 'ioctl_sg01' test from Linux Test Project (LTP). The following bytes were mainly observed: 0x53425355. When USB storage devices incorrectly skip the data phase with status data, the code extracts/validates the CSW from the sg buffer, but fails to clear it afterwards. This leaves status protocol data in srb's transfer buffer, such as the US_BULK_CS_SIGN 'USBS' signature observed here. Thus, this can lead to USB protocols leaks to user space through SCSI generic (/dev/sg*) interfaces, such as the one seen here when the LTP test requested 512 KiB. Fix the leak by zeroing the CSW data in srb's transfer buffer immediately after the validation of devices that skip data phase. Note: Differently from CVE-2018-1000204, which fixed a big leak by zero- ing pages at allocation time, this leak occurs after allocation, when USB protocol data is written to already-allocated sg pages.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% 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

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-106.106 | < 6.17.0-19.19
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1050.53 | < 6.17.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.159-1 | < 6.12.63-1 | < 6.17.11-1
Linux1 product
  • linux≥ a45b599ad808c3c982fdcdc12b0b8611c2f92824, < 83f0241959831586d9b6d47f6bd5d3dec8f43bf0 | ≥ a45b599ad808c3c982fdcdc12b0b8611c2f92824, < 4ba515dfff7eeca369ab85cdbb3f3b231c71720c | ≥ a45b599ad808c3c982fdcdc12b0b8611c2f92824, < 467fec3cefbeb9e3ea80f457da9a5666a71ca0d0 | ≥ a45b599ad808c3c982fdcdc12b0b8611c2f92824, < cb1401b5bcc2feb5b038fc4b512e5968b016e05e | ≥ a45b599ad808c3c982fdcdc12b0b8611c2f92824, < 0f18eac44c5668204bf6eebb01ddb369ac56932b | ≥ a45b599ad808c3c982fdcdc12b0b8611c2f92824, < 5b815ddb3f5560fac35b16de3a2a22d5f81c5993 | ≥ a45b599ad808c3c982fdcdc12b0b8611c2f92824, < 41e99fe2005182139b1058db71f0d241f8f0078c | 582802e7c617cfb07cc15f280c128e6decbc57b8 | 58b7ce6f9ef2367f86384b20458642945993b816 | 93314640426ddb6af618d0802e622f6fa771792c | ad2518320bc440ed3db072e2444a1bb226a9cf7a | d827bea2d18c07ba514f7d48cde49f90da9a1384 | 39169410574503c6e901de1aa6eac5108475e017 | ≥ 3.16.58, < 3.17 | ≥ 3.18.110, < 3.19 | ≥ 4.4.133, < 4.5 | ≥ 4.9.103, < 4.10 | ≥ 4.14.44, < 4.15 | ≥ 4.16.12, < 4.17 | 4.17

3 vendors · 158 products

References

38 links
Show all 38 references