High severity · published Sep 11, 2023
CVE-2023-4585
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1
8.8
CVSS
0.8%
EPSS
No
On KEV
Description
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. 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. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 117.0 · source: NVD
FE
Firefox Esr · Mozilla
before 115.2 · source: NVD
TH
Thunderbird · Mozilla
before 115.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4585
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4585
Broken Link
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1751583%2C1841082%2C1847904%2C1848999
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-34/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-36/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-38/
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