NETGEAR Multiple Routers httpd Missing Authentication for Critical Function Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of authentication prior to allowing access to system configuration information. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-13708.
総合評価: CVE-2021-34983 は低リスク（34.6/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.33%、24 パーセンタイル） 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.18% | 0.33% | +0.14% |
| 2 | 2025-11-21 | 0.09% | 0.18% | +0.09% |
| 3 | 2025-11-18 | — | 0.09% | — |
EPSS の全履歴 （全 8 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 6.5 | 3.0 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| netgear | xr1000_firmware | < 1.0.0.64 | cpe:2.3:o:netgear:xr1000_firmware:*:*:*:*:*:*:*:* |
| netgear | xr300_firmware | < 1.0.3.68 | cpe:2.3:o:netgear:xr300_firmware:*:*:*:*:*:*:*:* |
| netgear | d6220_firmware | < 1.0.0.76 | cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:* |
| netgear | d6400_firmware | < 1.0.0.108 | cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:* |
| netgear | d7000v2_firmware | < 1.0.0.76 | cpe:2.3:o:netgear:d7000v2_firmware:*:*:*:*:*:*:*:* |
| netgear | dgn2200v4_firmware | < 1.0.0.126 | cpe:2.3:o:netgear:dgn2200v4_firmware:*:*:*:*:*:*:*:* |
| netgear | v6510-1fxaus_firmware | < 1.0.0.80 | cpe:2.3:o:netgear:v6510-1fxaus_firmware:*:*:*:*:*:*:*:* |
| netgear | dc112a_firmware | < 1.0.0.62 | cpe:2.3:o:netgear:dc112a_firmware:*:*:*:*:*:*:*:* |
| netgear | ex3700_firmware | < 1.0.0.94 | cpe:2.3:o:netgear:ex3700_firmware:*:*:*:*:*:*:*:* |
| netgear | ex3800_firmware | < 1.0.0.94 | cpe:2.3:o:netgear:ex3800_firmware:*:*:*:*:*:*:*:* |
| netgear | ex6120_firmware | < 1.0.0.66 | cpe:2.3:o:netgear:ex6120_firmware:*:*:*:*:*:*:*:* |
| netgear | ex6130_firmware | < 1.0.0.46 | cpe:2.3:o:netgear:ex6130_firmware:*:*:*:*:*:*:*:* |
| netgear | ex7000_firmware | < 1.0.1.106 | cpe:2.3:o:netgear:ex7000_firmware:*:*:*:*:*:*:*:* |
| netgear | ex7500_firmware | < 1.0.1.76 | cpe:2.3:o:netgear:ex7500_firmware:*:*:*:*:*:*:*:* |
| netgear | mr60_firmware | < 1.1.6.122 | cpe:2.3:o:netgear:mr60_firmware:*:*:*:*:*:*:*:* |
| netgear | mr80_firmware | < 1.1.6.10 | cpe:2.3:o:netgear:mr80_firmware:*:*:*:*:*:*:*:* |
| netgear | ms60_firmware | < 1.1.6.122 | cpe:2.3:o:netgear:ms60_firmware:*:*:*:*:*:*:*:* |
| netgear | ms80_firmware | < 1.1.6.10 | cpe:2.3:o:netgear:ms80_firmware:*:*:*:*:*:*:*:* |
| netgear | lax20_firmware | < 1.1.6.30 | cpe:2.3:o:netgear:lax20_firmware:*:*:*:*:*:*:*:* |
| netgear | r6400_firmware | < 1.0.1.76 | cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:* |
| netgear | r6400v2_firmware | < 1.0.4.120 | cpe:2.3:o:netgear:r6400v2_firmware:*:*:*:*:*:*:*:* |
| netgear | r6700v3_firmware | < 1.0.4.120 | cpe:2.3:o:netgear:r6700v3_firmware:*:*:*:*:*:*:*:* |
| netgear | r6900p_firmware | < 1.3.3.148 | cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:* |
| netgear | r7000_firmware | < 1.0.11.128 | cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:* |
| netgear | r7000p_firmware | < 1.3.3.148 | cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:* |
| netgear | r7100lg_firmware | < 1.0.0.72 | cpe:2.3:o:netgear:r7100lg_firmware:*:*:*:*:*:*:*:* |
| netgear | r7850_firmware | < 1.0.5.76 | cpe:2.3:o:netgear:r7850_firmware:*:*:*:*:*:*:*:* |
| netgear | r7900p_firmware | < 1.4.2.84 | cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:* |
| netgear | r7960p_firmware | < 1.4.2.84 | cpe:2.3:o:netgear:r7960p_firmware:*:*:*:*:*:*:*:* |
| netgear | r8000_firmware | < 1.0.4.76 | cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:* |
| netgear | r8000p_firmware | < 1.4.2.84 | cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:* |
| netgear | r8300_firmware | < 1.0.2.156 | cpe:2.3:o:netgear:r8300_firmware:*:*:*:*:*:*:*:* |
| netgear | r8500_firmware | < 1.0.2.156 | cpe:2.3:o:netgear:r8500_firmware:*:*:*:*:*:*:*:* |
| netgear | rax15_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax15_firmware:*:*:*:*:*:*:*:* |
| netgear | rax20_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax20_firmware:*:*:*:*:*:*:*:* |
| netgear | rax200_firmware | < 1.0.5.132 | cpe:2.3:o:netgear:rax200_firmware:*:*:*:*:*:*:*:* |
| netgear | rax35v2_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax35v2_firmware:*:*:*:*:*:*:*:* |
| netgear | rax38v2_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax38v2_firmware:*:*:*:*:*:*:*:* |
| netgear | rax40v2_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax40v2_firmware:*:*:*:*:*:*:*:* |
| netgear | rax42_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax42_firmware:*:*:*:*:*:*:*:* |
| netgear | rax43_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax43_firmware:*:*:*:*:*:*:*:* |
| netgear | rax45_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax45_firmware:*:*:*:*:*:*:*:* |
| netgear | rax48_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax48_firmware:*:*:*:*:*:*:*:* |
| netgear | rax50_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax50_firmware:*:*:*:*:*:*:*:* |
| netgear | rax50s_firmware | < 1.0.4.100 | cpe:2.3:o:netgear:rax50s_firmware:*:*:*:*:*:*:*:* |
| netgear | rax75_firmware | < 1.0.5.132 | cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:* |
| netgear | rax80_firmware | < 1.0.5.132 | cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:* |
| netgear | raxe450_firmware | < 1.0.8.70 | cpe:2.3:o:netgear:raxe450_firmware:*:*:*:*:*:*:*:* |
| netgear | raxe500_firmware | < 1.0.8.70 | cpe:2.3:o:netgear:raxe500_firmware:*:*:*:*:*:*:*:* |
| netgear | rs400_firmware | < 1.5.1.80 | cpe:2.3:o:netgear:rs400_firmware:*:*:*:*:*:*:*:* |
| netgear | wndr3400v3_firmware | < 1.0.1.42 | cpe:2.3:o:netgear:wndr3400v3_firmware:*:*:*:*:*:*:*:* |
| netgear | wnr3500lv2_firmware | < 1.2.0.70 | cpe:2.3:o:netgear:wnr3500lv2_firmware:*:*:*:*:*:*:*:* |