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Vulnerability details: VCID-149x-3y7q-fbfm
Vulnerability ID VCID-149x-3y7q-fbfm
Aliases CVE-2022-22764
Summary Mozilla developers and community members Paul Adenot and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 91.5. 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-22764.json
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00184 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2022-22764
cvssv3.1 8.8 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1742682%2C1744165%2C1746545%2C1748210%2C1748279
ssvc Track https://bugzilla.mozilla.org/buglist.cgi?bug_id=1742682%2C1744165%2C1746545%2C1748210%2C1748279
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2022-22764
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2022-04
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2022-05
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2022-06
cvssv3.1 8.8 https://www.mozilla.org/security/advisories/mfsa2022-04/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2022-04/
cvssv3.1 8.8 https://www.mozilla.org/security/advisories/mfsa2022-05/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2022-05/
cvssv3.1 8.8 https://www.mozilla.org/security/advisories/mfsa2022-06/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2022-06/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-22764.json
https://api.first.org/data/v1/epss?cve=CVE-2022-22764
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22754
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22756
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22759
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22760
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22761
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22763
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22764
2053243 https://bugzilla.redhat.com/show_bug.cgi?id=2053243
buglist.cgi?bug_id=1742682%2C1744165%2C1746545%2C1748210%2C1748279 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1742682%2C1744165%2C1746545%2C1748210%2C1748279
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
CVE-2022-22764 https://nvd.nist.gov/vuln/detail/CVE-2022-22764
mfsa2022-04 https://www.mozilla.org/en-US/security/advisories/mfsa2022-04
mfsa2022-04 https://www.mozilla.org/security/advisories/mfsa2022-04/
mfsa2022-05 https://www.mozilla.org/en-US/security/advisories/mfsa2022-05
mfsa2022-05 https://www.mozilla.org/security/advisories/mfsa2022-05/
mfsa2022-06 https://www.mozilla.org/en-US/security/advisories/mfsa2022-06
mfsa2022-06 https://www.mozilla.org/security/advisories/mfsa2022-06/
RHSA-2022:0510 https://access.redhat.com/errata/RHSA-2022:0510
RHSA-2022:0511 https://access.redhat.com/errata/RHSA-2022:0511
RHSA-2022:0512 https://access.redhat.com/errata/RHSA-2022:0512
RHSA-2022:0513 https://access.redhat.com/errata/RHSA-2022:0513
RHSA-2022:0514 https://access.redhat.com/errata/RHSA-2022:0514
RHSA-2022:0535 https://access.redhat.com/errata/RHSA-2022:0535
RHSA-2022:0536 https://access.redhat.com/errata/RHSA-2022:0536
RHSA-2022:0537 https://access.redhat.com/errata/RHSA-2022:0537
RHSA-2022:0538 https://access.redhat.com/errata/RHSA-2022:0538
RHSA-2022:0539 https://access.redhat.com/errata/RHSA-2022:0539
USN-5284-1 https://usn.ubuntu.com/5284-1/
USN-5345-1 https://usn.ubuntu.com/5345-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-22764.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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none

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unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://bugzilla.mozilla.org/buglist.cgi?bug_id=1742682%2C1744165%2C1746545%2C1748210%2C1748279
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

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none

required

unchanged

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-16T14:28:33Z/ Found at https://bugzilla.mozilla.org/buglist.cgi?bug_id=1742682%2C1744165%2C1746545%2C1748210%2C1748279
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-22764
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

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low

none

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2022-04/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

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required

unchanged

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high

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-16T14:28:33Z/ Found at https://www.mozilla.org/security/advisories/mfsa2022-04/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2022-05/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

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none

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-16T14:28:33Z/ Found at https://www.mozilla.org/security/advisories/mfsa2022-05/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2022-06/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

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none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-16T14:28:33Z/ Found at https://www.mozilla.org/security/advisories/mfsa2022-06/
Exploit Prediction Scoring System (EPSS)
Percentile 0.4058
EPSS Score 0.00184
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:10:04.443887+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2022/mfsa2022-06.yml 37.0.0