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Vulnerability details: VCID-mgv8-uy3t-aaag
Vulnerability ID VCID-mgv8-uy3t-aaag
Aliases CVE-2022-26386
Summary Previously Firefox for macOS and Linux would download temporary files to a user-specific directory in <code>/tmp</code>, but this behavior was changed to download them to <code>/tmp</code> where they could be affected by other local users. This behavior was reverted to the original, user-specific directory. <br>*This bug only affects Firefox for macOS and Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 91.7 and Thunderbird < 91.7.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-281 Improper Preservation of Permissions
System Score Found at
rhas Critical https://access.redhat.com/errata/RHSA-2022:0815
rhas Critical https://access.redhat.com/errata/RHSA-2022:0816
rhas Critical https://access.redhat.com/errata/RHSA-2022:0817
rhas Critical https://access.redhat.com/errata/RHSA-2022:0818
rhas Critical https://access.redhat.com/errata/RHSA-2022:0824
rhas Important https://access.redhat.com/errata/RHSA-2022:0843
rhas Important https://access.redhat.com/errata/RHSA-2022:0845
rhas Important https://access.redhat.com/errata/RHSA-2022:0847
rhas Important https://access.redhat.com/errata/RHSA-2022:0850
rhas Important https://access.redhat.com/errata/RHSA-2022:0853
cvssv3 3.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-26386.json
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epss 0.00089 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
epss 0.00089 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
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epss 0.00089 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
epss 0.00115 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
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epss 0.00115 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
epss 0.00121 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
epss 0.00121 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
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epss 0.00121 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
epss 0.00675 https://api.first.org/data/v1/epss?cve=CVE-2022-26386
cvssv3.1 6.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1752396
ssvc Track https://bugzilla.mozilla.org/show_bug.cgi?id=1752396
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=2062224
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2022-26386
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2022-26386
archlinux High https://security.archlinux.org/AVG-2713
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2022-11
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2022-12
cvssv3.1 6.5 https://www.mozilla.org/security/advisories/mfsa2022-11/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2022-11/
cvssv3.1 6.5 https://www.mozilla.org/security/advisories/mfsa2022-12/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2022-12/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-26386.json
https://api.first.org/data/v1/epss?cve=CVE-2022-26386
https://bugzilla.mozilla.org/show_bug.cgi?id=1752396
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26381
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26383
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26384
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26386
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26387
https://www.mozilla.org/security/advisories/mfsa2022-11/
https://www.mozilla.org/security/advisories/mfsa2022-12/
2062224 https://bugzilla.redhat.com/show_bug.cgi?id=2062224
AVG-2713 https://security.archlinux.org/AVG-2713
CVE-2022-26386 https://nvd.nist.gov/vuln/detail/CVE-2022-26386
mfsa2022-11 https://www.mozilla.org/en-US/security/advisories/mfsa2022-11
mfsa2022-12 https://www.mozilla.org/en-US/security/advisories/mfsa2022-12
RHSA-2022:0815 https://access.redhat.com/errata/RHSA-2022:0815
RHSA-2022:0816 https://access.redhat.com/errata/RHSA-2022:0816
RHSA-2022:0817 https://access.redhat.com/errata/RHSA-2022:0817
RHSA-2022:0818 https://access.redhat.com/errata/RHSA-2022:0818
RHSA-2022:0824 https://access.redhat.com/errata/RHSA-2022:0824
RHSA-2022:0843 https://access.redhat.com/errata/RHSA-2022:0843
RHSA-2022:0845 https://access.redhat.com/errata/RHSA-2022:0845
RHSA-2022:0847 https://access.redhat.com/errata/RHSA-2022:0847
RHSA-2022:0850 https://access.redhat.com/errata/RHSA-2022:0850
RHSA-2022:0853 https://access.redhat.com/errata/RHSA-2022:0853
USN-5345-1 https://usn.ubuntu.com/5345-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-26386.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

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1752396
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

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-15T20:11:42Z/ Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1752396
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2022-26386
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

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2022-26386
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

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://www.mozilla.org/security/advisories/mfsa2022-11/
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

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-15T20:11:42Z/ Found at https://www.mozilla.org/security/advisories/mfsa2022-11/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://www.mozilla.org/security/advisories/mfsa2022-12/
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

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-15T20:11:42Z/ Found at https://www.mozilla.org/security/advisories/mfsa2022-12/
Exploit Prediction Scoring System (EPSS)
Percentile 0.26732
EPSS Score 0.00089
Published At May 21, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.