CVE-2017-7752: debian debian_linux Use After Free
Vulnerability summary
CVE-2017-7752 is a high (CVSS 8.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 1.96% chance of exploitation in the next 30 days, higher than 79.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 15 · Related 6Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A use-after-free vulnerability during specific user interactions with the input method editor (IME) in some languages due to how events are handled. This results in a potentially exploitable crash but would require specific user interaction to trigger. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.96%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
-0.04 pp
From 2.00% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat6 products
- enterprise_linuxEOL6.0 | 7.0
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.3 | 7.4
- enterprise_linux_server_eus7.3 | 7.4 | 7.5
Mozilla3 products
- firefox≥ unspecified, < 54 | < 54.0 | < 52.2.0
- firefox_esr≥ unspecified, < 52.2
- thunderbird≥ unspecified, < 52.2 | < 52.2.0
Debian2 products
- firefox-esr< 52.2.0esr-1
- debian_linuxEOL8.0 | 9.0
Ubuntu2 products
- firefox< 54.0+build3-0ubuntu0.14.04.1 | < 54.0+build3-0ubuntu0.16.04.1
- thunderbird< 1:52.2.1+build1-0ubuntu0.14.04.1 | < 1:52.2.1+build1-0ubuntu0.16.04.1
4 vendors · 13 products
