CVE-2017-5455: mozilla firefox
Vulnerability summary
CVE-2017-5455 is a high (CVSS 7.5) vulnerability in mozilla firefox. EPSS estimates a 3.43% chance of exploitation in the next 30 days, higher than 88.7% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 7 · Related 5Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The internal feed reader APIs that crossed the sandbox barrier allowed for a sandbox escape and escalation of privilege if combined with another vulnerability that resulted in remote code execution inside the sandboxed process. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
3.43%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
-0.07 pp
From 3.50% on 18-09-2026
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_linuxEOL7.0
- enterprise_linux_desktop7.0
- enterprise_linux_server7.0
- enterprise_linux_server_aus7.3 | 7.4
- enterprise_linux_server_eus7.3 | 7.4 | 7.5
Mozilla2 products
- firefox≥ unspecified, < 53 | < 53.0 | < 52.1.0
- firefox_esr≥ unspecified, < 52.1
Ubuntu1 product
- firefox< 53.0+build6-0ubuntu0.14.04.1 | < 53.0+build6-0ubuntu0.16.04.1
3 vendors · 9 products
References
10 links- bugzilla.mozilla.org/show_bug.cgi?id=1341191X Refsource CONFIRMExploitIssue TrackingPatchVendor Advisory