FKIE_CVE-2025-9185

Vulnerability from fkie_nvd - Published: 2025-08-19 21:15 - Updated: 2026-04-13 15:17
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.
References
security@mozilla.orghttps://bugzilla.mozilla.org/buglist.cgi?bug_id=1970154%2C1976782%2C1977166Broken Link
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-64/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-65/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-66/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-67/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-70/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-71/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-72/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html
Impacted products
Vendor Product Version
mozilla firefox *
mozilla firefox *
mozilla firefox *
mozilla firefox *
mozilla thunderbird *
mozilla thunderbird *
mozilla thunderbird *
To clipboard 

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              "matchCriteriaId": "EA30840B-9687-4BD4-B2F6-7557A75D2C5C",
              "versionEndExcluding": "115.27.0",
              "vulnerable": true
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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2."
    },
    {
      "lang": "es",
      "value": "Errores de seguridad de memoria presentes en Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 y Thunderbird 141. Algunos de estos errores mostraron evidencia de corrupci\u00f3n de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podr\u00edan haberse explotado para ejecutar c\u00f3digo arbitrario. Esta vulnerabilidad afecta a Firefox \u0026lt; 142, Firefox ESR \u0026lt; 115.27, Firefox ESR \u0026lt; 128.14, Firefox ESR \u0026lt; 140.2, Thunderbird \u0026lt; 142, Thunderbird \u0026lt; 128.14 y Thunderbird \u0026lt; 140.2."
    }
  ],
  "id": "CVE-2025-9185",
  "lastModified": "2026-04-13T15:17:14.473",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-08-19T21:15:31.037",
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  "vulnStatus": "Modified",
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.