CVE-2017-5422: mozilla firefox Improper Input Validation
Vulnerability summary
CVE-2017-5422 is a high (CVSS 7.5) Improper Input Validation vulnerability in mozilla firefox. EPSS estimates a 2.33% chance of exploitation in the next 30 days, higher than 83.3% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 6 · Related 5Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
If a malicious site uses the "view-source:" protocol in a series within a single hyperlink, it can trigger a non-exploitable browser crash when the hyperlink is selected. This was fixed by no longer making "view-source:" linkable. This vulnerability affects Firefox < 52 and Thunderbird < 52.
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:N/A:H
EPSS trend
Probability
2.33%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
-0.05 pp
From 2.38% 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 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/show_bug.cgi?id=1295002X Refsource CONFIRMExploitIssue TrackingPatchVendor Advisory