5.5

CVE-2023-52984: net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices

Modified
AliasesUBUNTU-CVE-2023-52984DEBIAN-CVE-2023-52984
Published 27-03-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-52984 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19% 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 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.01 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 5 · Related 4
RHSA-2024:2394SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1195-1SUSE-SU-2025:1241-1

Timeline

  1. 27-03-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices The probe() function is only used for the DP83822 PHY, leaving the private data pointer uninitialized for the smaller DP83825/26 models. While all uses of the private data structure are hidden in 82822 specific callbacks, configuring the interrupt is shared across all models. This causes a NULL pointer dereference on the smaller PHYs as it accesses the private data unchecked. Verifying the pointer avoids that.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.26% 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.

Ubuntu96 products
  • linux< 5.15.0-72.79
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1036.40
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 5dc39fd5ef35bc6919759fa99246581b1adc6b82, < 362a2f5531dc0e5b0b5b3e3a541000dbffa75461 | ≥ 5dc39fd5ef35bc6919759fa99246581b1adc6b82, < 2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa | ≥ 5dc39fd5ef35bc6919759fa99246581b1adc6b82, < 78901b10522cdf6badf24acf65a892637596bccc | ≥ 5dc39fd5ef35bc6919759fa99246581b1adc6b82, < 422ae7d9c7221e8d4c8526d0f54106307d69d2dc | 5.10
  • linux_kernel≥ 5.10, < 5.10.168 | ≥ 5.11, < 5.15.93 | ≥ 5.16, < 6.1.11 | 6.2:rc1 | 6.2:rc2 | 6.2:rc3 | 6.2:rc4 | 6.2:rc5 | 6.2:rc6
Debian1 product
  • linux< 6.1.11-1

3 vendors · 99 products

References

8 links