Security advisory

{
  "id": "17f6a9a8160ff41e406b878e984c6e49eac8a3c0656e1045e34495234e4a36a5",
  "url": "https://osv.dev/vulnerability/CVE-2025-49112",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-49112",
    "summary": "setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size - prev->used.",
    "evidence": "osv:CVE-2025-49112",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2025-49112",
      "aliases": [
        "BIT-keydb-2025-49112",
        "BIT-redis-2025-49112",
        "BIT-valkey-2025-49112",
        "CVE-2025-49112"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/valkey-io/valkey",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "fcd8bc3ee40f5d7841b7d5a8f3cd12252fec14e4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "8.1.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "8.1.1"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "8.1.1",
            "8.1.0",
            "8.1.0-rc2",
            "8.1.0-rc1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-49112.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.105324437Z",
      "provider": "osv",
      "references": [
        "https://github.com/redis/redis/blob/994bc96bb1744cb153392fc96bdba43eae56e17f/src/networking.c#L783",
        "https://github.com/valkey-io/valkey/blob/daea05b1e26db29bfd1c033e27f9d519a2f8ccbb/src/networking.c#L886",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49112.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-49112",
        "https://github.com/valkey-io/valkey/pull/2101"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-191"
        ],
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49112.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-49112",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521682,
  "published_at": "2025-06-02T00:00:00+00:00"
}