CVE-2023-5730
CRITICALFirefox < 119, Firefox ESR < 115.4, Thunderbird < 115.4.1 - Out-of-bounds Write
Title source: llmDescription
Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3. 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 < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.
References (8)
Core 8
Core References
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-45/
Issue Tracking, Vendor Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1836607%2C1840918%2C1848694%2C1848833%2C1850191%2C1850259%2C1852596%2C1853201%2C1854002%2C1855306%2C1855640%2C1856695
Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00037.html
Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00042.html
Mailing List, Third Party Advisory
https://www.debian.org/security/2023/dsa-5535
Third Party Advisory
https://www.debian.org/security/2023/dsa-5538
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-46/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-47/
Scores
CVSS v3
9.8
EPSS
0.0049
EPSS Percentile
65.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (5)
debian/debian_linux
10.0
debian/debian_linux
11.0
mozilla/firefox
< 119.0
mozilla/firefox_esr
< 115.4
mozilla/thunderbird
< 115.4.1
Published
Oct 25, 2023
Tracked Since
Feb 18, 2026