Independent & educational platform Not a government body. No link or affiliation with any government organisation. Made for learning only. Test only systems you own or are authorised to test. Become a Partner or Sponsor → Full disclaimer

September 2026 CVE archive

Records last modified in NIST NVD between Sep 1 and Sep 30, 2026 (UTC). Data imported from the NVD CVE API 2.0 and the CISA KEV catalog; each record shows its own source and verification time. The modified view only includes records that were CRITICAL or CISA-KEV-listed when imported — it is not a complete list of every modification.

Published in September 2026Materially updated (Critical / KEV)
Total records
11,290
Critical
1,223
High
4,344
Medium
4,103
Low
460
Severity not reported
1,160
In CISA KEV
59

Most affected vendors (by CPE data where available): microsoft (945), google (608), oracle (274), apple (244), adobe (197), dell (138), ibm (104), arubanetworks (101), mongodb (64), apache (56)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-55658
Gardens v2 is a modular governance framework that enables communities to create...
high 7.7 —— 2026-09-032026-09-09
CVE-2026-87811
SiYuan before v3.8.2 inserts persisted notebook template paths into HTML input v...
high 7.3 —— 2026-09-092026-09-09
CVE-2026-87813
SiYuan before v3.8.2 contains a stored cross-site scripting vulnerability in the...
high 7.3 —— 2026-09-092026-09-09
CVE-2026-87821
Lara Dashboard through 1.3.1 contains a server-side request forgery vulnerabilit...
high 7.1 —— 2026-09-092026-09-09
CVE-2026-86099
Chainlit through 2.12.0 fails to validate the client-supplied socket.io sessionI...
high 8.2 —— 2026-09-092026-09-09
CVE-2026-86199
PocketMine-MP versions before 5.43.1 fail to properly validate the Certificate f...
high 7.5 —— 2026-09-092026-09-09
CVE-2026-79636
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.0 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-87823
zstd-jni before 1.5.7-14 performs 32-bit signed bounds checks on three direct-By...
high 8.2 —— 2026-09-092026-09-09
CVE-2026-87877
zstd-jni versions before 1.5.7-14 fail to validate closed state in setDict, setL...
high 7.7 —— 2026-09-092026-09-09
CVE-2026-80123
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.5 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-85877
Heap-based buffer overflow in Windows Print Spooler Components allows an unautho...
high 8.8 —Microsoft / windows 11 24h2 2026-09-082026-09-09
CVE-2026-87927
MaxSite CMS through 109.6 contains a local file inclusion vulnerability in the a...
high 8.2 —— 2026-09-092026-09-09
CVE-2026-87930
MaxSite CMS through 109.6 passes the ci_session cookie to unserialize() without...
high 8.1 —— 2026-09-092026-09-09
CVE-2026-87874
A flaw was found in the memcached cache plugin of the community.general Ansible...
high 8.1 —— 2026-09-092026-09-09
CVE-2026-79738
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.5 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-79740
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.5 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-79950
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.5 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-78482
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.8 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-79692
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.3 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-78490
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.5 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-78485
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.3 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-80122
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.3 —Dell / secure connect gateway 2026-09-092026-09-09
CVE-2026-9854
A vulnerability exists in SYS600 RBAC mechanism where users having access to the...
high 7.8 —Hitachienergy / microscada x sys600 2026-09-032026-09-09
CVE-2026-9853
A vulnerability exists in SYS600 which allows any user authenticated to the oper...
high 7.8 —Hitachienergy / microscada x sys600 2026-09-032026-09-09
CVE-2026-9852
A CSV injection vulnerability exists in SYS600.
high 7.8 —Hitachienergy / microscada x sys600 2026-09-032026-09-09
CVE-2026-81385
Deserialization of untrusted data in Microsoft Office Publisher allows an unauth...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-09
CVE-2026-69742
Integer overflow or wraparound in Microsoft Office Publisher allows an unauthori...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-09
CVE-2026-69285
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker t...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-09
CVE-2026-69442
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker t...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-09
CVE-2026-85124
@fastify/http-proxy versions before 11.6.2 do not validate proxied HTTP request...
high 7.5 —Fastify / fastify\/http-proxy 2026-09-032026-09-09
CVE-2026-69629
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized at...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-09
CVE-2026-83975
Heap-based buffer overflow in Windows Biometric Service allows an authorized att...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-09
CVE-2026-83986
Heap-based buffer overflow in Windows Biometric Service allows an authorized att...
high 7.8 —Microsoft / windows 10 1607 2026-09-082026-09-09
CVE-2026-79390
Trueview TI8161 6.0.23.4 is vulnerable to information disclosure due to the tran...
high 7.5 —— 2026-09-042026-09-09
CVE-2026-78837
A SQL injection vulnerability in the ap_form_{id} parameter in AppNitro MachForm...
high 7.5 —— 2026-09-082026-09-09
CVE-2026-80081
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-09
CVE-2026-78519
Use of uninitialized resource in Microsoft Office Outlook allows an unauthorized...
high 8.8 —Microsoft / 365 apps 2026-09-082026-09-09
CVE-2026-69857
Authorization bypass through user-controlled key in Azure Cosmos DB allows an au...
high 8.8 —Microsoft / azure cosmos db 2026-09-032026-09-09
CVE-2026-79734
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 7.5 —Dell / secure connect gateway 2026-09-072026-09-09
CVE-2026-80130
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application...
high 8.8 —Dell / secure connect gateway 2026-09-072026-09-09

Sources: NIST NVD (CVE API 2.0) and the CISA KEV catalog. Severity is as stated by the source; missing values are shown as “not reported”, never estimated.