CVE-2016-9066: debian debian_linux
Vulnerability summary
CVE-2016-9066 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 12.02% chance of exploitation in the next 30 days, higher than 96.1% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 12% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 17 · Related 9Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
A buffer overflow resulting in a potentially exploitable crash due to memory allocation issues when handling large amounts of incoming data. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.
CVSS metrics
4 scores · 3 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
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
12.02%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
Decrease -0.24 pp
From 12.26% 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, no user interaction (CVSS vector). Other conditions: not stated in public data.
Mozilla3 products
- firefox≥ unspecified, < 50 | < 45.5.0 | < 50.0
- firefox esr≥ unspecified, < 45.5
- thunderbird≥ unspecified, < 45.5 | < 45.5.0
Debian2 products
- firefox-esr< 45.5.0esr-1
- debian_linuxEOL8.0
Ubuntu2 products
- firefox< 50.0+build2-0ubuntu0.14.04.2 | < 50.0+build2-0ubuntu0.16.04.2
- thunderbird< 1:45.5.1+build1-0ubuntu0.14.04.1 | < 1:45.5.1+build1-0ubuntu0.16.04.1
3 vendors · 7 products
