CVE-2016-9901: mozilla firefox Improper Input Validation
CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2016-9901DEBIAN-CVE-2016-9901
Published 11-06-2018Last modified 06-08-2024
Vulnerability summary
CVE-2016-9901 is a critical (CVSS 9.8) Improper Input Validation vulnerability in mozilla firefox. EPSS estimates a 2.82% chance of exploitation in the next 30 days, higher than 86.3% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
2.82%
0%100%
Low · -0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 12 · Related 6Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
HTML tags received from the Pocket server will be processed without sanitization and any JavaScript code executed will be run in the "about:pocket-saved" (unprivileged) page, giving it access to Pocket's messaging API through HTML injection. This vulnerability affects Firefox ESR < 45.6 and Firefox < 50.1.
CVSS metrics
4 scores · 3 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 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.82%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
-0.06 pp
From 2.88% on 19-09-2026
19-09-202619-10-2026
EPSS score2.82%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat5 products
- enterprise_linux_aus7.3 | 7.4
- enterprise_linux_desktop5.0 | 6.0 | 7.0
- enterprise_linux_eus7.3 | 7.4 | 7.5
- enterprise_linux_server5.0 | 6.0 | 7.0
- enterprise_linux_workstation5.0 | 6.0 | 7.0
Mozilla2 products
- firefox≥ unspecified, < 50.1 | < 45.6.0 | < 50.1
- firefox_esr≥ unspecified, < 45.6
Debian1 product
- firefox-esr< 45.6.0esr-1
Ubuntu1 product
- firefox< 50.1.0+build2-0ubuntu0.14.04.1 | < 50.1.0+build2-0ubuntu0.16.04.1
4 vendors · 9 products
