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Low 3.4Published Sep 25, 2026

CVE-2025-1218Various packet overreads in mysqlnd_writeprotocol.c

Updated under an hour ago ()

Does this affect you?

It affects PHP Group PHP. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
3.4 LOW (v3.1, CNA)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Weakness (CWE)
CWE-122
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
php
NVD analysis
Awaiting Analysis
Record last updated
Sep 28, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
PHP Group PHP
php_group:php (from the name)
from 8.2.* before 8.2.34; from 8.3.* before 8.3.35; from 8.4.* before 8.4.26; from 8.5.* before 8.5.11
CNA record

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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