Microsoft Edge (Chromium-based) · Type Confusion
Source GCVE Database
Not known to be exploited · CVSS 5.4 Medium : upgrade to 154.0.4258.37 when convenient.
Data as of 29 Oct 2026, 19:19 UTC
Thin evidence
One scorer or none| CNA (microsoft) | CVSS 3.1 | 5.4 |
|---|
- Patch
- Available – fixed in 154.0.4258.37
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 29 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade Microsoft Edge (Chromium-based) to 154.0.4258.37.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MicrosoftMicrosoft Edge (Chromium-based) | Affected
| Fixed in
|
Description
A type confusion vulnerability in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network. The flaw involves accessing a resource using an incompatible type, potentially leading to privilege escalation. The vulnerability has a medium severity with a CVSS score of 5.4.