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Vulnerability details: VCID-yhrr-8bud-rqf9
Vulnerability ID VCID-yhrr-8bud-rqf9
Aliases CVE-2023-3417
Summary Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-434 Unrestricted Upload of File with Dangerous Type
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-3417.json
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
epss 0.00161 https://api.first.org/data/v1/epss?cve=CVE-2023-3417
ssvc Track https://bugzilla.mozilla.org/show_bug.cgi?id=1835582
cvssv3.1 8.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
ssvc Track https://lists.debian.org/debian-lts-announce/2023/07/msg00032.html
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2023-3417
ssvc Track https://www.debian.org/security/2023/dsa-5463
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-27
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-28
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-27/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-28/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-3417.json
https://api.first.org/data/v1/epss?cve=CVE-2023-3417
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3417
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2225325 https://bugzilla.redhat.com/show_bug.cgi?id=2225325
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:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
CVE-2023-3417 https://nvd.nist.gov/vuln/detail/CVE-2023-3417
dsa-5463 https://www.debian.org/security/2023/dsa-5463
mfsa2023-27 https://www.mozilla.org/en-US/security/advisories/mfsa2023-27
mfsa2023-27 https://www.mozilla.org/security/advisories/mfsa2023-27/
mfsa2023-28 https://www.mozilla.org/en-US/security/advisories/mfsa2023-28
mfsa2023-28 https://www.mozilla.org/security/advisories/mfsa2023-28/
msg00032.html https://lists.debian.org/debian-lts-announce/2023/07/msg00032.html
RHSA-2023:4492 https://access.redhat.com/errata/RHSA-2023:4492
RHSA-2023:4493 https://access.redhat.com/errata/RHSA-2023:4493
RHSA-2023:4494 https://access.redhat.com/errata/RHSA-2023:4494
RHSA-2023:4495 https://access.redhat.com/errata/RHSA-2023:4495
RHSA-2023:4496 https://access.redhat.com/errata/RHSA-2023:4496
RHSA-2023:4497 https://access.redhat.com/errata/RHSA-2023:4497
RHSA-2023:4499 https://access.redhat.com/errata/RHSA-2023:4499
RHSA-2023:4500 https://access.redhat.com/errata/RHSA-2023:4500
show_bug.cgi?id=1835582 https://bugzilla.mozilla.org/show_bug.cgi?id=1835582
USN-6333-1 https://usn.ubuntu.com/6333-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-3417.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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-25T18:54:00Z/ Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1835582
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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/2024-10-25T18:54:00Z/ Found at https://lists.debian.org/debian-lts-announce/2023/07/msg00032.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-3417
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/2024-10-25T18:54:00Z/ Found at https://www.debian.org/security/2023/dsa-5463
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-25T18:54:00Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-27/
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-25T18:54:00Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-28/
Exploit Prediction Scoring System (EPSS)
Percentile 0.3768
EPSS Score 0.00161
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:33.783621+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2023/mfsa2023-28.yml 37.0.0