Junglewise

Monthly report

Most vulnerable technologies in September 2026

Final report, published . It does not change.

In September 2026, Junglewise Threat Intelligence recorded 15,322 new vulnerabilities: 1,326 critical, 5,770 high and 28 exploited in the wild. The most vulnerable technology was Linux Kernel, with 2,099 vulnerabilities (119 critical), followed by Microsoft Windows (465) and Google Chrome (462).

New vulnerabilities
15,322
Critical
1,326
Exploited in the wild
28
Technologies affected
6,060

Ranking

Technologies ranked by exploited, critical and high severity vulnerabilities
#TechnologyVulnsCriticalHighExploitedMax CVSSMost severe
1Linux Kernel
Linux
2,099119623010
2Microsoft Windows
Microsoft
46539324210
3Google Chrome
Google
4627712629.8
4Apple macOS
Apple
2881999110
5Google Android
Google
2101710619.8
6Mozilla Firefox
Mozilla
172368109.8
7Mozilla Firefox ESR
Mozilla
145277409.8
8Mozilla Thunderbird
Mozilla
107315509.8
9Apple macOS Golden Gate
Apple
172854010
10Oracle Hyperion Financial Management
Oracle
801366010
11Apple iPadOS
Apple
14063719.8
12vm2 (npm)
npm
63309010
13WWBN AVideo
WWBN
10664509.8
14IBM Guardium Data Protection
IBM
52133709.9
15Apple visionOS
Apple
9752509.8
16NVIDIA GPU Display Driver
Nvidia
7304507.8
17SiYuan
SiYuan
68434010
18Apple watchOS
Apple
8252109.8
19Microsoft SQL Server
Microsoft
6053109.8
20Apple tvOS
Apple
7842209.8
21IBM Datastage On Cloud Pak For Data
IBM
3663009.9
22Oracle E-Business Suite
Oracle
4213909.8
23Apple Iphone Os
Apple
7031909.6
24IBM Financial Transaction Manager
IBM
4562409.9
25Arubanetworks Fabric Composer
Arubanetworks
51523010

Most affected vendors

  1. 1.Linux2,081 vulnerabilities, 119 critical, 0 exploited
  2. 2.Microsoft1,092 vulnerabilities, 88 critical, 4 exploited
  3. 3.Oracle592 vulnerabilities, 83 critical, 0 exploited
  4. 4.Google669 vulnerabilities, 83 critical, 3 exploited
  5. 5.IBM386 vulnerabilities, 42 critical, 0 exploited
  6. 6.Apple326 vulnerabilities, 21 critical, 1 exploited
  7. 7.Mozilla191 vulnerabilities, 41 critical, 0 exploited
  8. 8.Dell205 vulnerabilities, 11 critical, 0 exploited
  9. 9.Apache156 vulnerabilities, 29 critical, 0 exploited
  10. 10.Nvidia168 vulnerabilities, 1 critical, 0 exploited

Most severe vulnerabilities

How this is built

Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.

Technologies are ranked by a score: 10 points for each vulnerability exploited in the wild, 5 for each critical, 2 for each high and 1 for every vulnerability. A vulnerability counts once for every technology it affects, so one advisory can appear under several products.

The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.

Use this data

The same data is at https://junglewise.ai/threats/monthly/2026-09.json, and this page as text at https://junglewise.ai/threats/monthly/2026-09.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.

Cite as: Junglewise Threat Intelligence, "Most vulnerable technologies in September 2026", https://junglewise.ai/threats/monthly/2026-09, 2 October 2026.