Memory safety bug fixed in Thunderbird 152_CVE-2026-12310

7.5 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Basic Information

ID CVE-2026-12310

Source mozilla

Published Jun 16, 2026 at 11:52

Modified Jun 16, 2026 at 18:16

Affected Product

Vendor Mozilla

Product Firefox

Version 140.12

CWE Classification

CWE-119 CWE-416 CWE-787 CWE-125

References

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    "lastseen": "",
    "description": "Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.",
    "published": "2026-06-16T11:52:43.757Z",
    "modified": "2026-06-16T18:16:51.395Z",
    "type": "cve",
    "title": "Memory safety bug fixed in Thunderbird 152",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=2039707\nhttps://www.mozilla.org/security/advisories/mfsa2026-57/\nhttps://www.mozilla.org/security/advisories/mfsa2026-58/\nhttps://www.mozilla.org/security/advisories/mfsa2026-60/\nhttps://www.mozilla.org/security/advisories/mfsa2026-61/",
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    "cwe": [
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        "CWE-787",
        "CWE-125"
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    "cvelist": null,
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    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
        "version": "3.1"
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        "cvssV3": {
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    "href": "",
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    "product": "Firefox",
    "version": "140.12",
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