CVE-2026-2773 (GCVE-0-2026-2773)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-02-24 17:30
VLAI?
Title
Incorrect boundary conditions in the Web Audio component
Summary
Incorrect boundary conditions in the Web Audio component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 148 (custom)
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    Mozilla Firefox ESR Affected: unspecified , < 115.33 (custom)
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    Mozilla Firefox ESR Affected: unspecified , < 140.8 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 148 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 140.8 (custom)
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Credits
Information to follow
Show details on NVD website
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{
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        },
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          "vendor": "Mozilla",
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            {
              "lessThan": "115.33",
              "status": "affected",
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            }
          ]
        },
        {
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            }
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        },
        {
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              "status": "affected",
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              "versionType": "custom"
            }
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        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "140.8",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Information to follow"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Incorrect boundary conditions in the Web Audio component. This vulnerability affects Firefox \u003c 148, Firefox ESR \u003c 115.33, Firefox ESR \u003c 140.8, Thunderbird \u003c 148, and Thunderbird \u003c 140.8."
            }
          ],
          "value": "Incorrect boundary conditions in the Web Audio component. This vulnerability affects Firefox \u003c 148, Firefox ESR \u003c 115.33, Firefox ESR \u003c 140.8, Thunderbird \u003c 148, and Thunderbird \u003c 140.8."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-24T17:30:26.682Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
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          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2014832"
        },
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          "url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-14/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
        }
      ],
      "title": "Incorrect boundary conditions in the Web Audio component"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2026-2773",
    "datePublished": "2026-02-24T13:33:10.177Z",
    "dateReserved": "2026-02-19T15:05:53.926Z",
    "dateUpdated": "2026-02-24T17:30:26.682Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-2773\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2026-02-24T14:16:25.703\",\"lastModified\":\"2026-02-25T16:37:52.530\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Incorrect boundary conditions in the Web Audio component. This vulnerability affects Firefox \u003c 148, Firefox ESR \u003c 115.33, Firefox ESR \u003c 140.8, Thunderbird \u003c 148, and Thunderbird \u003c 140.8.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*\",\"versionEndExcluding\":\"115.33.0\",\"matchCriteriaId\":\"1B590E0E-4C6F-4F2A-A0FF-9BEDA1A36D17\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*\",\"versionEndExcluding\":\"148.0\",\"matchCriteriaId\":\"3D8676DB-4A12-41A0-A1A5-2DED97287973\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*\",\"versionStartIncluding\":\"128.0\",\"versionEndExcluding\":\"140.8.0\",\"matchCriteriaId\":\"AE16902C-47B5-438D-A4A5-770C08223931\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*\",\"versionEndExcluding\":\"140.8.0\",\"matchCriteriaId\":\"73228A3D-A71B-497B-A5BA-412FFE9F6F37\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*\",\"versionEndExcluding\":\"148.0\",\"matchCriteriaId\":\"C5EBE90D-1996-4578-B715-605B24E66C59\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=2014832\",\"source\":\"security@mozilla.org\",\"tags\":[\"Issue Tracking\",\"Permissions Required\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2026-13/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2026-14/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2026-15/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2026-16/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2026-17/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.