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Vulnerability details: VCID-d2tt-trdm-vkdp
Vulnerability ID VCID-d2tt-trdm-vkdp
Aliases CVE-2023-6873
Summary Memory safety bugs present in Firefox 120. 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-787 Out-of-bounds Write
System Score Found at
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2023-6873
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2023-6873
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-56
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-6873
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1855327%2C1862089%2C1862723
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50761
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50762
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6856
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6857
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6858
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6859
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6860
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6861
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6862
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6864
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6873
https://security.gentoo.org/glsa/202401-10
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: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-2023-6873 https://nvd.nist.gov/vuln/detail/CVE-2023-6873
mfsa2023-56 https://www.mozilla.org/en-US/security/advisories/mfsa2023-56
USN-6562-1 https://usn.ubuntu.com/6562-1/
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://nvd.nist.gov/vuln/detail/CVE-2023-6873
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
Exploit Prediction Scoring System (EPSS)
Percentile 0.56978
EPSS Score 0.00353
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:36.178611+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2023/mfsa2023-56.yml 37.0.0