5.5

CVE-2023-53451: scsi: qla2xxx: Fix potential NULL pointer dereference

Analyzed
AliasesUBUNTU-CVE-2023-53451DEBIAN-CVE-2023-53451
Published 01-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53451 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 15

Timeline

  1. 01-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix potential NULL pointer dereference Klocwork tool reported 'cur_dsd' may be dereferenced. Add fix to validate pointer before dereferencing the pointer.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu124 products
  • linuxAll versions (No fix recorded) | < 5.4.0-166.183 | < 5.15.0-86.96
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1113.123 | < 5.15.0-1047.52
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ a9083016a5314b3aeba6e0d2e814872e72168c08, < 02405f4023866ae91a611b5b85cb2e074ec2de5a | ≥ a9083016a5314b3aeba6e0d2e814872e72168c08, < ee4c9a93238b9ce3703942500cb1aeacf77090d2 | ≥ a9083016a5314b3aeba6e0d2e814872e72168c08, < 4f90a8b0481615622bd0558aa8cf361bea872045 | ≥ a9083016a5314b3aeba6e0d2e814872e72168c08, < 2bea9c1c983152c5411f5a2f1113cb790ce1389d | ≥ a9083016a5314b3aeba6e0d2e814872e72168c08, < 5a52a2e14fe866541bbc0033058e44bf0bf0c580 | ≥ a9083016a5314b3aeba6e0d2e814872e72168c08, < ce2cdbe530b0066bae1f98dbab590a232d507eaa | ≥ a9083016a5314b3aeba6e0d2e814872e72168c08, < af7affc0f6b82a5bde430fc4f0dcf70963442fbc | ≥ a9083016a5314b3aeba6e0d2e814872e72168c08, < 464ea494a40c6e3e0e8f91dd325408aaf21515ba | 2.6.35
  • linux_kernel≥ 2.6.35, < 4.14.322 | ≥ 4.15, < 4.19.291 | ≥ 4.20, < 5.4.251 | ≥ 5.5, < 5.10.188 | ≥ 5.11, < 5.15.121 | ≥ 5.16, < 6.1.40 | ≥ 6.2, < 6.4.5
Debian1 product
  • linux< 6.1.52-1 | < 6.4.11-1

3 vendors · 127 products

References

12 links
Show all 12 references