CVE-2017-5386: debian debian_linux
Vulnerability summary
CVE-2017-5386 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 2.22% chance of exploitation in the next 30 days, higher than 82.4% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 10 · Related 5Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.3HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- OSV · DebianEcosystem advisory · calculated7.3HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS trend
Probability
2.22%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
-0.04 pp
From 2.27% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.mozilla.org)
Maturity: unknown
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Redhat6 products
- enterprise_linuxEOL5.0 | 6.0 | 7.0
- enterprise_linux_desktop5.0 | 6.0 | 7.0
- enterprise_linux_server5.0 | 6.0 | 7.0
- enterprise_linux_server_aus7.3 | 7.4
- enterprise_linux_server_eus7.3 | 7.4 | 7.5
Debian2 products
- firefox-esr< 45.7.0esr-1
- debian_linuxEOL8.0
Mozilla2 products
- firefox≥ unspecified, < 51 | < 51.0 | < 45.7.0
- firefox_esr≥ unspecified, < 45.7
Ubuntu1 product
- firefox< 51.0.1+build2-0ubuntu0.14.04.1 | < 51.0.1+build2-0ubuntu0.16.04.1
4 vendors · 11 products
References
13 links- bugzilla.mozilla.org/show_bug.cgi?id=1319070X Refsource CONFIRMExploitIssue TrackingPatchVendor Advisory
