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Vulnerability details: VCID-z1n4-zmdy-77ck
Vulnerability ID VCID-z1n4-zmdy-77ck
Aliases CVE-2023-29550
Summary Mozilla developers Randell Jesup, Andrew Osmond, Sebastian Hengst, Andrew McCreight, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 111 and Firefox ESR 102.9. 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 (1)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29550.json
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.00136 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
epss 0.0014 https://api.first.org/data/v1/epss?cve=CVE-2023-29550
cvssv3.1 8.8 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1720594%2C1812498%2C1814217%2C1818357%2C1751945%2C1818762%2C1819493%2C1820389%2C1820602%2C1821448%2C1822413%2C1824828
ssvc Track https://bugzilla.mozilla.org/buglist.cgi?bug_id=1720594%2C1812498%2C1814217%2C1818357%2C1751945%2C1818762%2C1819493%2C1820389%2C1820602%2C1821448%2C1822413%2C1824828
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2023-29550
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
cvssv3.1 8.8 https://www.mozilla.org/security/advisories/mfsa2023-13/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-13/
cvssv3.1 8.8 https://www.mozilla.org/security/advisories/mfsa2023-14/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-14/
cvssv3.1 8.8 https://www.mozilla.org/security/advisories/mfsa2023-15/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2023-15/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29550.json
https://api.first.org/data/v1/epss?cve=CVE-2023-29550
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
2186111 https://bugzilla.redhat.com/show_bug.cgi?id=2186111
buglist.cgi?bug_id=1720594%2C1812498%2C1814217%2C1818357%2C1751945%2C1818762%2C1819493%2C1820389%2C1820602%2C1821448%2C1822413%2C1824828 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1720594%2C1812498%2C1814217%2C1818357%2C1751945%2C1818762%2C1819493%2C1820389%2C1820602%2C1821448%2C1822413%2C1824828
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-2023-29550 https://nvd.nist.gov/vuln/detail/CVE-2023-29550
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
USN-6010-1 https://usn.ubuntu.com/6010-1/
USN-6015-1 https://usn.ubuntu.com/6015-1/
USN-6120-1 https://usn.ubuntu.com/6120-1/
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-2023-29550.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:H/A:H Found at https://bugzilla.mozilla.org/buglist.cgi?bug_id=1720594%2C1812498%2C1814217%2C1818357%2C1751945%2C1818762%2C1819493%2C1820389%2C1820602%2C1821448%2C1822413%2C1824828
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/2025-01-10T19:20:01Z/ Found at https://bugzilla.mozilla.org/buglist.cgi?bug_id=1720594%2C1812498%2C1814217%2C1818357%2C1751945%2C1818762%2C1819493%2C1820389%2C1820602%2C1821448%2C1822413%2C1824828
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-2023-29550
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:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2023-13/
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/2025-01-10T19:20:01Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-13/
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/mfsa2023-14/
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/2025-01-10T19:20:01Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-14/
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/mfsa2023-15/
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/2025-01-10T19:20:01Z/ Found at https://www.mozilla.org/security/advisories/mfsa2023-15/
Exploit Prediction Scoring System (EPSS)
Percentile 0.34246
EPSS Score 0.00136
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:31.294429+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2023/mfsa2023-13.yml 37.0.0