5.5

CVE-2026-31549: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-31549DEBIAN-CVE-2026-31549
Published 24-04-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-31549 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.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 39 · Related 39
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23221-1

Timeline

  1. 24-04-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: cp2615: fix serial string NULL-deref at probe The cp2615 driver uses the USB device serial string as the i2c adapter name but does not make sure that the string exists. Verify that the device has a serial number before accessing it to avoid triggering a NULL-pointer dereference (e.g. with malicious devices).

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

+0.04 pp

From 0.12% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.16%

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

Ubuntu145 products
  • linux< 5.15.0-186.196 | < 6.8.0-136.136 | All versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1112.119 | < 6.8.0-1061.64 | All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 4a7695429eade517b07ea72f9ec366130e81a076, < e68c267787778bcdf3d91b06f794faaba7f0d1d1 | ≥ 4a7695429eade517b07ea72f9ec366130e81a076, < 4a22af879172336370ae3e81e7f65fb2f69472ee | ≥ 4a7695429eade517b07ea72f9ec366130e81a076, < 69aece634a7eebafd9a596e5494d52facf6f26ec | ≥ 4a7695429eade517b07ea72f9ec366130e81a076, < 13ccf9b106bba121728f1625c4375a1bd8f5c5a3 | ≥ 4a7695429eade517b07ea72f9ec366130e81a076, < a9778298f47036866ea15eeb17242e8a4612580f | ≥ 4a7695429eade517b07ea72f9ec366130e81a076, < efe996bcfe50c2dcc6cf65c574285713b722ced7 | ≥ 4a7695429eade517b07ea72f9ec366130e81a076, < aa79f996eb41e95aed85a1bd7f56bcd6a3842008 | 5.13
  • linux_kernelEOL≥ 5.13.1, < 5.15.203 | ≥ 5.16, < 6.1.167 | ≥ 6.2, < 6.6.130 | ≥ 6.7, < 6.12.78 | ≥ 6.13, < 6.18.20 | ≥ 6.19, < 6.19.10 | 5.13 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5 | 7.0:rc6 | 7.0:rc7
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.10-1

3 vendors · 148 products

References

38 links
Show all 38 references