CVE-2026-77490
A NVD · · CVE-2026-77490
Admiralty grading (A–F · 1–6)
Source reliability
- A Completely reliable
- B Usually reliable
- C Fairly reliable
- D Not usually reliable
- E Unreliable
- F Cannot be judged
Information credibility
- 1 Confirmed
- 2 Probably true
- 3 Possibly true
- 4 Doubtful
- 5 Improbable
- 6 Cannot be judged
NATO Admiralty (AJP-2.1) grades confidence, independent of the risk score. Cross-source corroboration isn't tracked for non-CVE news, so single-source items are capped at a lower credibility number; a low number does not imply low quality.
Key metrics
- CVSS
- 6.1
- EPSS
- 0%
Key insight
Pure vulnerability report with no indication of active exploitation, PoC, or attacker TTPs.
Description
CVE-2026-77490 affects Microsoft Edge (Chromium-based). The vulnerability is improper neutralization of input during web page generation, which enables cross-site scripting. An unauthenticated attacker can use this to perform spoofing over the network. There are no indications of active exploitation, a PoC, or a KEV entry. Microsoft Edge is affected; further exploitation details are not published.
Risk score
- cvss base
- 61.00
- kev bonus
- 0.00
- epss bonus
- 0.00
- poc bonus
- 0.00
- raw before weight
- 61.00
- industry weight
- 1.21
- freshness factor
- 1.00
- exploitability factor
- 1.00
- days old
- 0.00
- vendor mismatch penalty
- 0.00
Path: operational