CVE-2026-88078 json
Microsoft Edge (Chromium-based) Spoofing Vulnerability
published 2026-10-29 11 d ago modified 2026-11-03 5 d ago also EUVD-2026-112940
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
Improper verification of cryptographic signature in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Patch / fix
- Microsoft Microsoft Edge (Chromium-based) 156.0.4314.42
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 10 d ago
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
Affected products
- Microsoft Microsoft Edge (Chromium-based)
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-88078
vendor-advisory, patch
Sources
- CVE List CVE-2026-88078
- NVD CVE-2026-88078
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