VulnSocial

CVE-2026-66323Disclosure(microsoft / edge_chromium)

LOWCVSS 5.4 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

microsoft CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-141

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • edge_chromium

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
microsoft
Products
edge_chromium

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-30: 1Technical Details · 2026-08-30: 108-30
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • connect24h@connect24h
    Disclosure

    嫌な並びだ。Edgeに未認証RCEが3件並ぶ。 MSRCの掲載情報では、CVE-2026-66323はargument delimiter処理、CVE-2026-66798はuse after free、CVE-2026-72984はtype confusionにより、unauthorized attackerがnetwork経由でcode executionできるとされる。ただし今回はページ本文を取得できず、対象versionや成立条件は未検証だ。 これ、全社標準browserにしている組織ほど他人事じゃない。CSIRT初動ならIntuneやDefenderの端末inventoryでEdge version、更新状態、最終check-inの3点が見えるかが分かれ目になる。各CVEの詳しい条件と更新情報は元ページで追いたい。browserは入口である前に、全端末へ広がる共通部品だ。 ソース: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66323

    Post summary

    The post reports Microsoft’s MSRC listing three Edge unverified RCEs with details on their technical nature, but provides no PoC, exploit code, or evidence of active exploitation.

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CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoftedge_chromium---

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