CVE-2026-113399

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability—next 30 days

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

FIRST hasn't scored this CVE yet (usual for very recent or rejected CVEs).

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Mozilla — Firefox^AI

References

Show 2 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-113399",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "security@mozilla.org",
      "affectedData": [
        {
          "vendor": "Mozilla",
          "product": "Firefox",
          "versions": [
            {
              "status": "unaffected",
              "version": "158.0.1",
              "versionType": "rpm",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-20T13:16:40.973",
  "references": [
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2079938",
      "source": "security@mozilla.org"
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-111/",
      "source": "security@mozilla.org"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1."
    }
  ],
  "lastModified": "2026-10-20T13:16:40.973",
  "sourceIdentifier": "security@mozilla.org"
}