5.5

CVE-2022-49139: Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt

Modified
AliasesUBUNTU-CVE-2022-49139DEBIAN-CVE-2022-49139
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49139 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 18.6% 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 · 0.00 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 9 · Related 9
SUSE-SU-2025:01620-1SUSE-SU-2025:01640-1SUSE-SU-2025:01918-1SUSE-SU-2025:01982-1SUSE-SU-2025:01983-1SUSE-SU-2025:01995-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt This event is just specified for SCO and eSCO link types. On the reception of a HCI_Synchronous_Connection_Complete for a BDADDR of an existing LE connection, LE link type and a status that triggers the second case of the packet processing a NULL pointer dereference happens, as conn->link is NULL.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.27% 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.

Ubuntu114 products
  • linuxAll versions (No fix recorded) | < 5.4.0-147.164 | < 5.15.0-70.77
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1100.108 | < 5.15.0-1034.38
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ efc7688b557dd1be10eead7399b315efcb1dbc74, < 1c1291a84e94f6501644634c97544bb8291e9a1a | ≥ efc7688b557dd1be10eead7399b315efcb1dbc74, < 0f9db1209f59844839175b5b907d3778cafde93d | ≥ efc7688b557dd1be10eead7399b315efcb1dbc74, < c1aa0dd52db4ce888be0bd820c3fa918d350ca0b | ≥ efc7688b557dd1be10eead7399b315efcb1dbc74, < f61c23e73dc653b957781066abfa8105c3fa3f5b | ≥ efc7688b557dd1be10eead7399b315efcb1dbc74, < 3afee2118132e93e5f6fa636dfde86201a860ab3 | 2.6.30
  • linux_kernel< 5.4.231 | ≥ 5.5, < 5.10.167 | ≥ 5.11, < 5.15.92 | ≥ 5.16, < 5.17.3
Debian1 product
  • linux< 5.17.3-1

3 vendors · 117 products

References

9 links