The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed.
総合評価: CVE-2020-24587 は公開エクスプロイトあり（56.6/100）。CVSS 深刻度は低。悪用される可能性が高い（EPSS 2.59%、83 パーセンタイル） 根拠: 公開エクスプロイトが 1 件参照されています（Exploit-DB）。 直近 1 日で EPSS が +2.06% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 0.53% | 2.59% | +2.06% |
| 2 | 2026-04-04 | 0.42% | 0.53% | +0.11% |
| 3 | 2026-03-04 | — | 0.42% | — |
EPSS の全履歴 （全 44 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 |
|---|---|---|---|---|---|---|
| 2.6 | 3.1 | LOW |
|
1.2 | 1.4 | [email protected] |
| 1.8 | 2.0 | LOW |
|
3.2 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-24587 not yet assigned priority: Debian including 2 source packages (firmware-nonfree, linux), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 9, open 1. | https://security-tracker.debian.org/tracker/CVE-2020-24587 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-24587 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2020-24587/ |
ubuntu
|
medium | CVE-2020-24587 medium priority: Ubuntu including 169 source packages (linux, linux-allwinner, …), 2181 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1696, released 218, not-affected 217, ignored 45, needed 5. | https://ubuntu.com/security/CVE-2020-24587 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| ieee | ieee_802.11 | — | cpe:2.3:a:ieee:ieee_802.11:*:*:*:*:*:*:*:* |
| linux | mac80211 | — | cpe:2.3:a:linux:mac80211:-:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| arista | c-100_firmware | — | cpe:2.3:o:arista:c-100_firmware:-:*:*:*:*:*:*:* |
| arista | c-110_firmware | — | cpe:2.3:o:arista:c-110_firmware:-:*:*:*:*:*:*:* |
| arista | c-120_firmware | — | cpe:2.3:o:arista:c-120_firmware:-:*:*:*:*:*:*:* |
| arista | c-130_firmware | — | cpe:2.3:o:arista:c-130_firmware:-:*:*:*:*:*:*:* |
| arista | c-200_firmware | — | cpe:2.3:o:arista:c-200_firmware:-:*:*:*:*:*:*:* |
| arista | c-230_firmware | — | cpe:2.3:o:arista:c-230_firmware:-:*:*:*:*:*:*:* |
| arista | c-235_firmware | — | cpe:2.3:o:arista:c-235_firmware:-:*:*:*:*:*:*:* |
| arista | c-250_firmware | — | cpe:2.3:o:arista:c-250_firmware:-:*:*:*:*:*:*:* |
| arista | c-260_firmware | — | cpe:2.3:o:arista:c-260_firmware:-:*:*:*:*:*:*:* |
| arista | c-65_firmware | — | cpe:2.3:o:arista:c-65_firmware:-:*:*:*:*:*:*:* |
| arista | c-75_firmware | — | cpe:2.3:o:arista:c-75_firmware:-:*:*:*:*:*:*:* |
| arista | o-105_firmware | — | cpe:2.3:o:arista:o-105_firmware:-:*:*:*:*:*:*:* |
| arista | o-90_firmware | — | cpe:2.3:o:arista:o-90_firmware:-:*:*:*:*:*:*:* |
| arista | w-118_firmware | — | cpe:2.3:o:arista:w-118_firmware:-:*:*:*:*:*:*:* |
| arista | w-68_firmware | — | cpe:2.3:o:arista:w-68_firmware:-:*:*:*:*:*:*:* |
| cisco | 1100_firmware | — | cpe:2.3:o:cisco:1100_firmware:-:*:*:*:*:*:*:* |
| cisco | 1100-4p_firmware | — | cpe:2.3:o:cisco:1100-4p_firmware:-:*:*:*:*:*:*:* |
| cisco | 1100-8p_firmware | — | cpe:2.3:o:cisco:1100-8p_firmware:-:*:*:*:*:*:*:* |
| cisco | 1101-4p_firmware | — | cpe:2.3:o:cisco:1101-4p_firmware:-:*:*:*:*:*:*:* |
| cisco | 1109-2p_firmware | — | cpe:2.3:o:cisco:1109-2p_firmware:-:*:*:*:*:*:*:* |
| cisco | 1109-4p_firmware | — | cpe:2.3:o:cisco:1109-4p_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1532_firmware | — | cpe:2.3:o:cisco:aironet_1532_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1542d_firmware | — | cpe:2.3:o:cisco:aironet_1542d_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1542i_firmware | — | cpe:2.3:o:cisco:aironet_1542i_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1552_firmware | — | cpe:2.3:o:cisco:aironet_1552_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1552h_firmware | — | cpe:2.3:o:cisco:aironet_1552h_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1572_firmware | — | cpe:2.3:o:cisco:aironet_1572_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1702_firmware | — | cpe:2.3:o:cisco:aironet_1702_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1800_firmware | — | cpe:2.3:o:cisco:aironet_1800_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1800i_firmware | — | cpe:2.3:o:cisco:aironet_1800i_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1810_firmware | — | cpe:2.3:o:cisco:aironet_1810_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1810w_firmware | — | cpe:2.3:o:cisco:aironet_1810w_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1815_firmware | — | cpe:2.3:o:cisco:aironet_1815_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1815i_firmware | — | cpe:2.3:o:cisco:aironet_1815i_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1832_firmware | — | cpe:2.3:o:cisco:aironet_1832_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1842_firmware | — | cpe:2.3:o:cisco:aironet_1842_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_1852_firmware | — | cpe:2.3:o:cisco:aironet_1852_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_2702_firmware | — | cpe:2.3:o:cisco:aironet_2702_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_2800_firmware | — | cpe:2.3:o:cisco:aironet_2800_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_2800e_firmware | — | cpe:2.3:o:cisco:aironet_2800e_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_2800i_firmware | — | cpe:2.3:o:cisco:aironet_2800i_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_3702_firmware | — | cpe:2.3:o:cisco:aironet_3702_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_3800_firmware | — | cpe:2.3:o:cisco:aironet_3800_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_3800e_firmware | — | cpe:2.3:o:cisco:aironet_3800e_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_3800i_firmware | — | cpe:2.3:o:cisco:aironet_3800i_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_3800p_firmware | — | cpe:2.3:o:cisco:aironet_3800p_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_4800_firmware | — | cpe:2.3:o:cisco:aironet_4800_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_ap803_firmware | — | cpe:2.3:o:cisco:aironet_ap803_firmware:-:*:*:*:*:*:*:* |
| cisco | aironet_iw3702_firmware | — | cpe:2.3:o:cisco:aironet_iw3702_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9105_firmware | — | cpe:2.3:o:cisco:catalyst_9105_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9105axi_firmware | — | cpe:2.3:o:cisco:catalyst_9105axi_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9105axw_firmware | — | cpe:2.3:o:cisco:catalyst_9105axw_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9115_firmware | — | cpe:2.3:o:cisco:catalyst_9115_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9115_ap_firmware | — | cpe:2.3:o:cisco:catalyst_9115_ap_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9115axe_firmware | — | cpe:2.3:o:cisco:catalyst_9115axe_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9115axi_firmware | — | cpe:2.3:o:cisco:catalyst_9115axi_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9117_firmware | — | cpe:2.3:o:cisco:catalyst_9117_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9117_ap_firmware | — | cpe:2.3:o:cisco:catalyst_9117_ap_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9117axi_firmware | — | cpe:2.3:o:cisco:catalyst_9117axi_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9120_firmware | — | cpe:2.3:o:cisco:catalyst_9120_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9120_ap_firmware | — | cpe:2.3:o:cisco:catalyst_9120_ap_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9120axe_firmware | — | cpe:2.3:o:cisco:catalyst_9120axe_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9120axi_firmware | — | cpe:2.3:o:cisco:catalyst_9120axi_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9120axp_firmware | — | cpe:2.3:o:cisco:catalyst_9120axp_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9124_firmware | — | cpe:2.3:o:cisco:catalyst_9124_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9124axd_firmware | — | cpe:2.3:o:cisco:catalyst_9124axd_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9124axi_firmware | — | cpe:2.3:o:cisco:catalyst_9124axi_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9130_firmware | — | cpe:2.3:o:cisco:catalyst_9130_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9130_ap_firmware | — | cpe:2.3:o:cisco:catalyst_9130_ap_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9130axe_firmware | — | cpe:2.3:o:cisco:catalyst_9130axe_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_9130axi_firmware | — | cpe:2.3:o:cisco:catalyst_9130axi_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_iw6300_firmware | — | cpe:2.3:o:cisco:catalyst_iw6300_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_iw6300_ac_firmware | — | cpe:2.3:o:cisco:catalyst_iw6300_ac_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_iw6300_dc_firmware | — | cpe:2.3:o:cisco:catalyst_iw6300_dc_firmware:-:*:*:*:*:*:*:* |
| cisco | catalyst_iw6300_dcw_firmware | — | cpe:2.3:o:cisco:catalyst_iw6300_dcw_firmware:-:*:*:*:*:*:*:* |
| cisco | esw6300_firmware | — | cpe:2.3:o:cisco:esw6300_firmware:-:*:*:*:*:*:*:* |
| cisco | ip_phone_6861_firmware | — | cpe:2.3:o:cisco:ip_phone_6861_firmware:-:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/05/11/12 | Mailing List Third Party Advisory |
| https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu | Third Party Advisory |
| https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 | Third Party Advisory |
| https://www.fragattacks.com | Exploit Third Party Advisory |
| https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html | Third Party Advisory |