CVE-2023-26916
Publication date 3 April 2023
Last updated 20 September 2025
Ubuntu priority
Cvss 3 Severity Score
Description
libyang from v2.0.164 to v2.1.30 was discovered to contain a NULL pointer dereference via the function lys_parse_mem at lys_parse_mem.c.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| libyang | 25.04 plucky | 
                                Not affected 
                                
                               | 
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | |
| 20.04 LTS focal | 
                                Not affected 
                                
                               | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Ignored end of standard support | |
| 14.04 LTS trusty | Ignored end of standard support | |
| libyang2 | 25.04 plucky | 
                                Not affected 
                                
                               | 
| 24.04 LTS noble | 
                                Fixed 2.1.30-2.1ubuntu0.1 
                                
                               | |
| 22.04 LTS jammy | 
                                Not affected 
                                
                               | 
Severity score breakdown
| Parameter | Value | 
|---|---|
| Base score |  | 
| Attack vector | Network | 
| Attack complexity | Low | 
| Privileges required | None | 
| User interaction | None | 
| Scope | Unchanged | 
| Confidentiality | None | 
| Integrity impact | None | 
| Availability impact | Low | 
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | 
References
Related Ubuntu Security Notices (USN)
- USN-7752-1
- libyang vulnerabilities
- 16 September 2025