5.5

CVE-2026-45835: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb()

Modified
AliasesUBUNTU-CVE-2026-45835DEBIAN-CVE-2026-45835
Published 26-05-2026Last modified 15-10-2026

Vulnerability summary

CVE-2026-45835 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.2% 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
0.13%
0%100%
Low · -0.04 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 52 · Related 52
OPENSUSE-SU-2026:10954-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1

Timeline

  1. 26-05-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb() Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

Decrease -0.04 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.

Ubuntu166 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136 | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64 | < 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 80808e431e1ef25856457de82ce141bed6a6313a, < 140b63cb46f2855ac4ec8fba2f1e974a9c2974e8 | ≥ 80808e431e1ef25856457de82ce141bed6a6313a, < 2422eaed0925973c0f318c94eb13e76f14c7381e | ≥ 80808e431e1ef25856457de82ce141bed6a6313a, < 684a1f9ee2325437ae18ac5371884e4c6a25ae73 | ≥ 80808e431e1ef25856457de82ce141bed6a6313a, < ab77c8bc30269bee15d917059a66bea48909f5f0 | ≥ 80808e431e1ef25856457de82ce141bed6a6313a, < bc3bb9f40da8e53896abc2d29c6d0c6686fe4ab9 | ≥ 80808e431e1ef25856457de82ce141bed6a6313a, < 741e6024e31587b0c021b6616a9e428a4ea0b64a | ≥ 80808e431e1ef25856457de82ce141bed6a6313a, < 76083fb80f5a38ac13326b2d810f66bd07771eea | ≥ 80808e431e1ef25856457de82ce141bed6a6313a, < 0a120d96166301d7a95be75b52f843837dbd1219 | 3.1
  • linux_kernel≥ 3.1, < 5.10.258 | ≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.88 | ≥ 6.13, < 6.18.30 | ≥ 6.19, < 7.0.7 | 7.1:rc1 | 7.1:rc2
Debian1 product
  • linux< 6.1.176-1 | < 6.12.88-1 | < 7.0.7-1

3 vendors · 169 products

References

52 links
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