CVE-2026-7322 (GCVE-0-2026-7322)
Vulnerability from cvelistv5
Published
2026-04-28 13:49
Modified
2026-05-07 15:22
Severity ?
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
References
Impacted products
Vendor Product Version
Mozilla Firefox Unaffected: 115.35.1
Unaffected: 140.10.1
Unaffected: 150.0.1
 Create a notification for this product.
   Mozilla Thunderbird Unaffected: 140.10.1
Unaffected: 150.0.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 7.3,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
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                "role": "CISA Coordinator",
                "timestamp": "2026-04-30T03:55:55.566591Z",
                "version": "2.0.3"
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                "cweId": "CWE-119",
                "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
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                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
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                "description": "CWE-416 Use After Free",
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        "providerMetadata": {
          "dateUpdated": "2026-04-30T10:20:27.399Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "versions": [
            {
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            {
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "150.0.1",
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      "credits": [
        {
          "lang": "en",
          "value": "C.M.Chang, Christian Holler, Steve Fink and the Mozilla Fuzzing Team"
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          "value": "Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-07T15:22:40.028Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
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      "references": [
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          "name": "Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1",
          "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2021904%2C2022731%2C2027158%2C2027733%2C2027973%2C2027976%2C2028231%2C2028731%2C2028886%2C2029067%2C2029700%2C2029724%2C2029806%2C2029814%2C2030108%2C2030111%2C2031524%2C2031921%2C2032040"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-35/"
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        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-36/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-37/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-38/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-39/"
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  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
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    "datePublished": "2026-04-28T13:49:09.314Z",
    "dateReserved": "2026-04-28T13:42:17.804Z",
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    "state": "PUBLISHED"
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