5.5

CVE-2026-23285: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-23285DEBIAN-CVE-2026-23285
Published 25-03-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-23285 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.8% 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
0.12%
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 16 · Related 14
MGASA-2026-0097MGASA-2026-0098USN-8567-1USN-8574-1USN-8574-2USN-8574-3

Timeline

  1. 25-03-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbd_request_endio(), READ_COMPLETED_WITH_ERROR is passed to __req_mod() with a NULL peer_device: __req_mod(req, what, NULL, &m); The READ_COMPLETED_WITH_ERROR handler then unconditionally passes this NULL peer_device to drbd_set_out_of_sync(), which dereferences it, causing a null-pointer dereference. Fix this by obtaining the peer_device via first_peer_device(device), matching how drbd_req_destroy() handles the same situation.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.12% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.12%

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

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0d11f3cf279c5ad20a41f29242f170ba3c02f2da, < 6f1d1614f841d91a4169db65812ffd1271735b42 | ≥ 0d11f3cf279c5ad20a41f29242f170ba3c02f2da, < 1e906c08594c8f9a6a524f38ede2c4e051196106 | ≥ 0d11f3cf279c5ad20a41f29242f170ba3c02f2da, < 4e8935053ba389ae8d6685c10854d8021931bd89 | ≥ 0d11f3cf279c5ad20a41f29242f170ba3c02f2da, < 91df51d2df0ca4fd3281f73626341563d64a98a5 | ≥ 0d11f3cf279c5ad20a41f29242f170ba3c02f2da, < 0d195d3b205ca90db30d70d09d7bb6909aac178f | 6.4
  • linux_kernel≥ 6.4, < 6.6.130 | ≥ 6.7, < 6.12.77 | ≥ 6.13, < 6.18.17 | ≥ 6.19, < 6.19.7 | 7.0:rc1
Debian1 product
  • linux< 6.12.85-1 | < 6.19.8-1

3 vendors · 160 products

References

24 links
Show all 24 references