5.5

CVE-2026-23087: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2026-23087DEBIAN-CVE-2026-23087
Published 04-02-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-23087 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.5% 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
0.15%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 34 · Related 28
DLA-4475-1DLA-4476-1DSA-6126-1DSA-6127-1MGASA-2026-0097MGASA-2026-0098

Timeline

  1. 04-02-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Fix potential memory leak in scsiback_remove() Memory allocated for struct vscsiblk_info in scsiback_probe() is not freed in scsiback_remove() leading to potential memory leaks on remove, as well as in the scsiback_probe() error paths. Fix that by freeing it in scsiback_remove().

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

+0.02 pp

From 0.13% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.15%

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

Affected systems

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-176.186 | < 6.8.0-117.117
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1105.112 | < 6.8.0-1055.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ d9d660f6e562a47b4065eeb7e538910b0471b988, < a8bb3ec8d85951a56af0a72d93ccbc2aee42eef9 | ≥ d9d660f6e562a47b4065eeb7e538910b0471b988, < 427b0fb30ddec3bad05dcd73b00718f98c7026d2 | ≥ d9d660f6e562a47b4065eeb7e538910b0471b988, < 4a975c72429b050c234405668b742cdecc11548e | ≥ d9d660f6e562a47b4065eeb7e538910b0471b988, < f86264ec0e2b102fcd49bf3e4f32fee669d482fc | ≥ d9d660f6e562a47b4065eeb7e538910b0471b988, < 32e52b56056daf0f0881fd9254706acf25b4be97 | ≥ d9d660f6e562a47b4065eeb7e538910b0471b988, < 24c441f0e24da175d7912095663f526ac480dc4f | ≥ d9d660f6e562a47b4065eeb7e538910b0471b988, < 901a5f309daba412e2a30364d7ec1492fa11c32c | 3.18
  • linux_kernel≥ 3.18, < 5.10.249 | ≥ 5.11, < 5.15.199 | ≥ 5.16, < 6.1.162 | ≥ 6.2, < 6.6.122 | ≥ 6.7, < 6.12.68 | ≥ 6.13, < 6.18.8 | 6.19:rc1 | 6.19:rc2 | 6.19:rc3 | 6.19:rc4 | 6.19:rc5 | 6.19:rc6
Debian1 product
  • linux< 6.1.162-1 | < 6.12.69-1 | < 6.18.8-1

3 vendors · 159 products

References

41 links
Show all 41 references