CVE-2025-40928
Publication date 8 September 2025
Last updated 16 September 2025
Ubuntu priority
Description
JSON::XS before version 4.04 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libjson-xs-perl | 25.10 questing |
Fixed 4.040-1
|
| 25.04 plucky |
Fixed 4.040-0ubuntu0.25.04.1
|
|
| 24.04 LTS noble |
Fixed 4.040-0ubuntu0.24.04.1
|
|
| 22.04 LTS jammy |
Fixed 4.040-0ubuntu0.22.04.1
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.5 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-7750-1
- JSON-XS vulnerability
- 15 September 2025