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October 2026 CVE archive

Records last modified in NIST NVD between Oct 1 and Oct 31, 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 October 2026Materially updated (Critical / KEV)
Total records
22,617
Critical
3,170
High
7,236
Medium
7,073
Low
640
Severity not reported
4,498
In CISA KEV
186

Most affected vendors (by CPE data where available): microsoft (1423), linux (722), google (413), ibm (322), oracle (193), mozilla (182), adobe (165), broadcom (118), apache (115), fabian (98)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-117899
Use-after-free in the Networking: HTTP component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117900
Use-after-free in the DOM: Editor component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117901
Use-after-free in the DOM: Core & HTML component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117902
Use-after-free in the Layout: Text and Fonts component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117903
Use-after-free in the Audio/Video component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117904
Use-after-free in the JavaScript: GC component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117905
Use-after-free in the Audio/Video: Playback component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117906
Use-after-free in the CSS Parsing and Computation component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117907
Use-after-free in the Networking component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117888
Uninitialized memory in the Graphics: Canvas2D component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117889
Incorrect boundary conditions in the JavaScript Engine component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117890
JIT miscompilation in the JavaScript Engine: JIT component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117891
Use-after-free in the JavaScript Engine: JIT component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117892
Privilege escalation due to use-after-free in the WebRTC: Networking component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117893
Incorrect boundary conditions in the Security: PSM component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117894
Incorrect boundary conditions in the WebRTC: Signaling component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117895
Use-after-free in the DOM: Core & HTML component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117896
Use-after-free in the DOM: Core & HTML component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117897
Incorrect boundary conditions in the Layout: Tables component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117878
Other issue, use-after-free in the Storage: IndexedDB component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117879
Incorrect boundary conditions in the Layout: Tables component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117880
Use-after-free in the XML component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117881
Use-after-free in the DOM: Core & HTML component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117882
Use-after-free in the Layout component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117883
Use-after-free in the DOM: HTML Parser component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117884
Use-after-free in the Networking component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117885
Use-after-free in the Layout: Grid component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117886
Incorrect boundary conditions in the Graphics: Text component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117887
Use-after-free in the DOM: Core & HTML component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117868
Sandbox escape in the DOM: Networking component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117869
Use-after-free in the DOM: Core & HTML component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117870
Use-after-free in the JavaScript Engine component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117871
Invalid pointer in the Graphics component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117872
Use-after-free in the JavaScript: Standard Library component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117873
Incorrect boundary conditions in the Audio/Video: Playback component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117874
Use-after-free in the Internationalization component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117875
Use-after-free in the Layout: Scrolling and Overflow component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117876
Use-after-free in the Layout: Text and Fonts component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117877
Use-after-free in the Layout: Text and Fonts component.
not reported— —— 2026-10-272026-10-27
CVE-2026-117860
Same-origin policy bypass in the DOM: Navigation component.
not reported— —— 2026-10-272026-10-27

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.