CVE-2025-1218
Published: September 26, 2026Last modified: September 26, 2026
Description
The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined behaviour and can crash the process.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.4 |
| Attack Vector | ADJACENT_NETWORK |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | LOW |
| Integrity impact | NONE |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | php81 | Unknown (8.1.19-r0) |
| 25 LTS | php83 | Fixed (8.3.35-r0) | |
| Stream | php83 | Fixed (8.3.35-r0) |