CVE-2016-1942: mozilla firefox Improper Input Validation
Vulnerability summary
CVE-2016-1942 is a high (CVSS 7.4) Improper Input Validation vulnerability in mozilla firefox. EPSS estimates a 1.80% chance of exploitation in the next 30 days, higher than 78.4% of scored vulnerabilities.
Not severe (CVSS 7.4, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 31-01-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Mozilla Firefox before 44.0 allows user-assisted remote attackers to spoof a trailing substring in the address bar by leveraging a user's paste of a (1) wyciwyg: URI or (2) resource: URI.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.4HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
EPSS trend
Probability
1.80%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.80% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Mozilla1 product
- firefox≤ 43.0.4
Ubuntu1 product
- firefox< 44.0+build3-0ubuntu0.14.04.1
3 vendors · 4 products
References
13 links- bugzilla.mozilla.org/show_bug.cgi?id=1189082X Refsource CONFIRM