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October 2026 CVE archive

Records published in NIST NVD between Oct 1 and Oct 29, 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.

Published in October 2026Materially updated (Critical / KEV)
Total records
16,212
Critical
1,207
High
5,399
Medium
5,736
Low
600
Severity not reported
3,270
In CISA KEV
17

Most affected vendors (by CPE data where available): microsoft (1078), google (711), ibm (140), oracle (117), adobe (110), broadcom (61), apache (45), freerdp (42), linuxfoundation (41), dell (40)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-100211
Use after free in Microsoft Office Excel allows an unauthorized attacker to exec...
high 8.8 —Microsoft / 365 apps 2026-10-132026-10-15
CVE-2026-100212
Use after free in Microsoft Office Excel allows an unauthorized attacker to exec...
high 8.8 —Microsoft / 365 apps 2026-10-132026-10-15
CVE-2026-100215
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorize...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-20
CVE-2026-100216
Stack-based buffer overflow in Windows Storage allows an authorized attacker to...
high 7.0 —Microsoft / windows 10 1809 2026-10-132026-10-20
CVE-2026-100217
Improper privilege management in Windows Group Policy allows an authorized attac...
high 7.8 —Microsoft / windows 10 1607 2026-10-132026-10-20
CVE-2026-100218
Use after free in Remote Desktop Gateway Service allows an unauthorized attacker...
high 8.1 —Microsoft / windows 10 1607 2026-10-132026-10-20
CVE-2026-100203
Heap-based buffer overflow in Windows Update Service allows an authorized attack...
high 7.0 —Microsoft / windows 10 1607 2026-10-132026-10-20
CVE-2026-100209
Use after free in Microsoft Office Excel allows an unauthorized attacker to exec...
high 8.8 —Microsoft / 365 apps 2026-10-132026-10-15
CVE-2026-100210
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized atta...
high 8.8 —Microsoft / 365 apps 2026-10-132026-10-15
CVE-2026-100200
Use after free in Windows Update Service allows an authorized attacker to elevat...
high 7.0 —Microsoft / windows 11 23h2 2026-10-132026-10-20
CVE-2026-100201
Heap-based buffer overflow in Windows Client License Service allows an authorize...
high 7.0 —Microsoft / windows 10 1809 2026-10-132026-10-20
CVE-2026-69435
Missing authorization in Azure SRE Agent allows an authorized attacker to elevat...
high 8.1 —Microsoft / azure sre agent 2026-10-082026-10-15
CVE-2026-96940
Weak authentication in Microsoft Exchange Server allows an authorized attacker t...
high 8.8 —Microsoft / exchange server 2026-10-022026-10-15
CVE-2026-108453
Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacke...
medium 6.5 —Microsoft / 365 apps 2026-10-152026-10-19
CVE-2026-108454
Buffer over-read in Microsoft Office PowerPoint allows an unauthorized attacker...
medium 6.5 —Microsoft / 365 apps 2026-10-152026-10-19
CVE-2026-108455
Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacke...
medium 6.5 —Microsoft / 365 apps 2026-10-152026-10-19
CVE-2026-108436
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to d...
medium 6.5 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108438
Use after free in Microsoft Office Word allows an unauthorized attacker to discl...
medium 6.5 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108434
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to d...
medium 6.5 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-108435
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized at...
medium 6.5 —Microsoft / 365 apps 2026-10-152026-10-20
CVE-2026-97844
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97839
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97840
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97841
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97842
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97843
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97833
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97834
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97835
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97836
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97837
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97838
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97828
Buffer over-read in DNS Server allows an authorized attacker to disclose informa...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97829
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97831
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97832
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97823
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97824
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97825
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16
CVE-2026-97826
Out-of-bounds read in DNS Server allows an authorized attacker to disclose infor...
medium 6.5 —Microsoft / windows 10 1607 2026-10-132026-10-16

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.