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Vulnerability details: VCID-499x-gk1r-rfe8
Vulnerability ID VCID-499x-gk1r-rfe8
Aliases CVE-2023-29539
Summary When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-159 Improper Handling of Invalid Use of Special Elements
CWE-476 NULL Pointer Dereference
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29539.json
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00133 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
epss 0.00137 https://api.first.org/data/v1/epss?cve=CVE-2023-29539
ssvc Track https://bugzilla.mozilla.org/show_bug.cgi?id=1784348
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2023-29539
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-13
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-14
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-15
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-13/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-14/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-15/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29539.json
https://api.first.org/data/v1/epss?cve=CVE-2023-29539
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0547
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1945
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1999
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28427
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29479
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29533
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29535
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29536
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29539
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29541
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29548
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29550
2186105 https://bugzilla.redhat.com/show_bug.cgi?id=2186105
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:*:*:*:*:*:android:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:*
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:focus:*:*:*:*:*:android:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:focus:*:*:*:*:*:android:*:*
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-2023-29539 https://nvd.nist.gov/vuln/detail/CVE-2023-29539
mfsa2023-13 https://www.mozilla.org/en-US/security/advisories/mfsa2023-13
mfsa2023-13 https://www.mozilla.org/security/advisories/mfsa2023-13/
mfsa2023-14 https://www.mozilla.org/en-US/security/advisories/mfsa2023-14
mfsa2023-14 https://www.mozilla.org/security/advisories/mfsa2023-14/
mfsa2023-15 https://www.mozilla.org/en-US/security/advisories/mfsa2023-15
mfsa2023-15 https://www.mozilla.org/security/advisories/mfsa2023-15/
RHSA-2023:1785 https://access.redhat.com/errata/RHSA-2023:1785
RHSA-2023:1786 https://access.redhat.com/errata/RHSA-2023:1786
RHSA-2023:1787 https://access.redhat.com/errata/RHSA-2023:1787
RHSA-2023:1788 https://access.redhat.com/errata/RHSA-2023:1788
RHSA-2023:1789 https://access.redhat.com/errata/RHSA-2023:1789
RHSA-2023:1790 https://access.redhat.com/errata/RHSA-2023:1790
RHSA-2023:1791 https://access.redhat.com/errata/RHSA-2023:1791
RHSA-2023:1792 https://access.redhat.com/errata/RHSA-2023:1792
RHSA-2023:1802 https://access.redhat.com/errata/RHSA-2023:1802
RHSA-2023:1803 https://access.redhat.com/errata/RHSA-2023:1803
RHSA-2023:1804 https://access.redhat.com/errata/RHSA-2023:1804
RHSA-2023:1805 https://access.redhat.com/errata/RHSA-2023:1805
RHSA-2023:1806 https://access.redhat.com/errata/RHSA-2023:1806
RHSA-2023:1809 https://access.redhat.com/errata/RHSA-2023:1809
RHSA-2023:1810 https://access.redhat.com/errata/RHSA-2023:1810
RHSA-2023:1811 https://access.redhat.com/errata/RHSA-2023:1811
show_bug.cgi?id=1784348 https://bugzilla.mozilla.org/show_bug.cgi?id=1784348
USN-6010-1 https://usn.ubuntu.com/6010-1/
USN-6015-1 https://usn.ubuntu.com/6015-1/
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-2023-29539.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:T/P:M/B:A/M:M/D:T/2025-01-09T15:43:44Z/ Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1784348
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-2023-29539
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:T/P:M/B:A/M:M/D:T/2025-01-09T15:43:44Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-13/
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-01-09T15:43:44Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-14/
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-01-09T15:43:44Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-15/
Exploit Prediction Scoring System (EPSS)
Percentile 0.33862
EPSS Score 0.00133
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:31.086744+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2023/mfsa2023-13.yml 37.0.0