CVE-2025-49112 – Valkey TCP/IP Stack Integer Underflow Vulnerability

The following table lists the changes that have been made to the
CVE-2025-49112 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jun. 02, 2025

    Action Type Old Value New Value
    Added Description setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size – prev->used.
    Added CVSS V3.1 AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
    Added CWE CWE-191
    Added Reference https://github.com/redis/redis/blob/994bc96bb1744cb153392fc96bdba43eae56e17f/src/networking.c#L783
    Added Reference https://github.com/valkey-io/valkey/blob/daea05b1e26db29bfd1c033e27f9d519a2f8ccbb/src/networking.c#L886
    Added Reference https://github.com/valkey-io/valkey/pull/2101
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