CVE-2017-5399: mozilla firefox
CVSS: 10.0v2.0HighModified
AliasesUBUNTU-CVE-2017-5399
Published 11-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2017-5399 is a high (CVSS 10.0) vulnerability in mozilla firefox. EPSS estimates a 2.27% chance of exploitation in the next 30 days, higher than 82.7% of scored vulnerabilities.
CVSS score
10.0/10
010
High · v2.0 (NVD)EPSS score
2.27%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6 · Related 5Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Memory safety bugs were reported in Firefox 51. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 52 and Thunderbird < 52.
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 10.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
2.27%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
+0.02 pp
From 2.25% on 18-09-2026
18-09-202618-10-2026
EPSS score2.27%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mozilla2 products
- firefox≥ unspecified, < 52 | < 52.0
- thunderbird≥ unspecified, < 52 | < 52.0
Ubuntu1 product
- firefox< 52.0+build2-0ubuntu0.14.04.1 | < 52.0+build2-0ubuntu0.16.04.1
2 vendors · 3 products
References
9 links- bugzilla.mozilla.org/buglist.cgiX Refsource CONFIRMIssue TrackingPermissions RequiredThird Party Advisory