+ RHSA-2026:9345 Important: thunderbird security update
https://access.redhat.com/errata/RHSA-2026:9345
CVE-2026-5731
CVE-2026-5732
CVE-2026-5734
CVE-2026-33416
CVE-2026-33636
+ RHSA-2026:9131 Important: kernel security update
https://access.redhat.com/errata/RHSA-2026:9131
CVE-2025-68741
CVE-2026-23191
+ RHSA-2026:8945 Important: freerdp security update
https://access.redhat.com/errata/RHSA-2026:8945
CVE-2026-33983
CVE-2026-33984
+ RHSA-2026:9044 Important: osbuild-composer security update
https://access.redhat.com/errata/RHSA-2026:9044
CVE-2026-25679
+ RHSA-2026:8921 Important: kernel security update
https://access.redhat.com/errata/RHSA-2026:8921
CVE-2025-39766
CVE-2025-68741
+ RHSA-2026:8888 Important: openexr security update
https://access.redhat.com/errata/RHSA-2026:8888
CVE-2026-27622
+ RHSA-2026:8841 Important: go-rpm-macros security update
https://access.redhat.com/errata/RHSA-2026:8841
CVE-2026-25679
+ Mozilla Firefox 150.0 released
https://www.firefox.com/en-US/firefox/150.0/releasenotes/
+ Mozilla Foundation Security Advisory 2026-30 Security Vulnerabilities fixed in Firefox 150
https://www.mozilla.org/en-US/security/advisories/mfsa2026-30/
CVE-2026-6746
CVE-2026-6747
CVE-2026-6748
CVE-2026-6749
CVE-2026-6750
CVE-2026-6751
CVE-2026-6752
CVE-2026-6753
CVE-2026-6754
CVE-2026-6755
CVE-2026-6756
CVE-2026-6757
CVE-2026-6758
CVE-2026-6759
CVE-2026-6760
CVE-2026-6761
CVE-2026-6762
CVE-2026-6763
CVE-2026-6764
CVE-2026-6765
CVE-2026-6766
CVE-2026-6767
CVE-2026-6768
CVE-2026-6769
CVE-2026-6770
CVE-2026-6771
CVE-2026-6772
CVE-2026-6773
CVE-2026-6774
CVE-2026-6775
CVE-2026-6776
CVE-2026-6777
CVE-2026-6778
CVE-2026-6779
CVE-2026-6780
CVE-2026-6781
CVE-2026-6782
CVE-2026-6783
CVE-2026-6784
CVE-2026-6785
CVE-2026-6786
+ Mozilla Foundation Security Advisory 2026-32 Security Vulnerabilities fixed in Firefox ESR 140.10
https://www.mozilla.org/en-US/security/advisories/mfsa2026-32/
+ Mozilla Foundation Security Advisory 2026-31 Security Vulnerabilities fixed in Firefox ESR 115.35
https://www.mozilla.org/en-US/security/advisories/mfsa2026-31/
+ Oracle Critical Patch Update Advisory - April 2026
https://www.oracle.com/security-alerts/cpuapr2026.html
Current:VU#890999 Radware Alteon has a reflected XSS vulnerability that can execute JavaScript in the host browser
https://www.kb.cert.org/vuls/id/890999
VU#414811 Terrarium contains a vulnerability that allows arbitrary code execution
https://www.kb.cert.org/vuls/id/414811
「ループ障害」の防ぎ方 第3回
ループを防ぐSTPに世代交代の波、2つの後継規格を図解で知る
https://xtech.nikkei.com/atcl/nxt/column/18/03593/041600003/?ST=nxt_thmit_security
勝村幸博の「今日も誰かが狙われる」
攻撃者は侵入ではなく「ログイン」する、闇市場で買える9億件の認証情報
https://xtech.nikkei.com/atcl/nxt/column/18/00676/040600221/?ST=nxt_thmit_security
パワポで「仕事がはかどる」ネットワーク図は描けるのか 第3回
「線の交差」がネットワーク図の難所、お勧めの回避術を伝授しよう
https://xtech.nikkei.com/atcl/nxt/column/18/03583/040800003/?ST=nxt_thmit_security
ニュース解説
YCC情報システムのランサム被害70万件超、山形中心に埼玉・幸手市でも
https://xtech.nikkei.com/atcl/nxt/column/18/00001/11681/?ST=nxt_thmit_security
