+ RHSA-2026:6918 Important: freerdp security update
https://access.redhat.com/errata/RHSA-2026:6918
CVE-2026-22852
CVE-2026-22854
CVE-2026-22856
CVE-2026-23732
CVE-2026-23948
CVE-2026-24491
CVE-2026-24675
CVE-2026-24676
CVE-2026-24679
CVE-2026-24681
CVE-2026-24683
CVE-2026-24684
CVE-2026-31806
+ RHSA-2026:6915 Important: vim security update
https://access.redhat.com/errata/RHSA-2026:6915
CVE-2026-28417
CVE-2026-28421
CVE-2026-33412
+ RHSA-2026:6907 Important: nginx:1.24 security update
https://access.redhat.com/errata/RHSA-2026:6907
CVE-2026-27651
CVE-2026-27654
CVE-2026-27784
CVE-2026-32647
+ RHSA-2026:6750 Important: gstreamer1-plugins-bad-free, gstreamer1-plugins-base, and gstreamer1-plugins-good security update
https://access.redhat.com/errata/RHSA-2026:6750
CVE-2026-2920
CVE-2026-2921
CVE-2026-2923
CVE-2026-3082
CVE-2026-3083
CVE-2026-3085
+ RHSA-2026:6923 Important: nginx:1.24 security update
https://access.redhat.com/errata/RHSA-2026:6923
CVE-2026-27651
CVE-2026-27654
CVE-2026-27784
CVE-2026-32647
+ RHSA-2026:6766 Important: python3.9 security update
https://access.redhat.com/errata/RHSA-2026:6766
CVE-2026-4519
+ Google Chrome 147.0.7727.55/56 released
https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html
+ Mozilla Firefox 149.0.2 released
https://www.firefox.com/en-US/firefox/149.0.2/releasenotes/
+ Mozilla Foundation Security Advisory 2026-25 Security Vulnerabilities fixed in Firefox 149.0.2
https://www.mozilla.org/en-US/security/advisories/mfsa2026-25/
CVE-2026-5732
CVE-2026-5733
CVE-2026-5731
CVE-2026-5734
CVE-2026-5735
+ nginx 1.29.8 released
https://nginx.org/en/CHANGES
+ Mozilla Foundation Security Advisory 2026-28 Security Vulnerabilities fixed in Thunderbird 149.0.2
https://www.mozilla.org/en-US/security/advisories/mfsa2026-28/
CVE-2026-5732
CVE-2026-5733
CVE-2026-5731
CVE-2026-5734
CVE-2026-5735
+ Mozilla Foundation Security Advisory 2026-29 Security Vulnerabilities fixed in Thunderbird 140.9.1
https://www.mozilla.org/en-US/security/advisories/mfsa2026-29/
+ Mozilla Foundation Security Advisory 2026-27 Security Vulnerabilities fixed in Firefox ESR 140.9.1
https://www.mozilla.org/en-US/security/advisories/mfsa2026-27/
+ Mozilla Foundation Security Advisory 2026-26 Security Vulnerabilities fixed in Firefox ESR 115.34.1
https://www.mozilla.org/en-US/security/advisories/mfsa2026-26/
+ OpenSSL 3.6.2, 3.5.6, 3.4.5, 3.3.7, 3.0.20 released
https://github.com/openssl/openssl/releases/tag/openssl-3.6.2
https://github.com/openssl/openssl/releases/tag/openssl-3.5.6
https://github.com/openssl/openssl/releases/tag/openssl-3.4.5
https://github.com/openssl/openssl/releases/tag/openssl-3.3.7
https://github.com/openssl/openssl/releases/tag/openssl-3.0.20
+ Out-of-bounds Read in AES-CFB-128 on X86-64 with AVX-512 Support
https://openssl-library.org/news/vulnerabilities/index.html#CVE-2026-28386
CVE-2026-28386
+ Potential Use-after-free in DANE Client Code
https://openssl-library.org/news/vulnerabilities/index.html#CVE-2026-28387
CVE-2026-28387
+ NULL Pointer Dereference When Processing a Delta CRL
https://openssl-library.org/news/vulnerabilities/index.html#CVE-2026-28388
CVE-2026-28388
+ Possible NULL Dereference When Processing CMS KeyAgreeRecipientInfo
https://openssl-library.org/news/vulnerabilities/index.html#CVE-2026-28389
CVE-2026-28389
+ Possible NULL Dereference When Processing CMS KeyTransportRecipientInfo
https://openssl-library.org/news/vulnerabilities/index.html#CVE-2026-28390
CVE-2026-28390
+ Heap Buffer Overflow in Hexadecimal Conversion
https://openssl-library.org/news/vulnerabilities/index.html#CVE-2026-31789
CVE-2026-31789
+ Incorrect Failure Handling in RSA KEM RSASVE Encapsulation
https://openssl-library.org/news/vulnerabilities/index.html#CVE-2026-31790
CVE-2026-31790
密着、未来のセキュリティー人材育成現場 第3回
セキュリティー「も」分かる人材を育てる、コース新設した木更津高専の狙い
https://xtech.nikkei.com/atcl/nxt/column/18/03567/040100003/?ST=nxt_thmit_security
ニュース解説
フォーティネットがSSL-VPNの「廃止」期限を1年延長、5月の終了目前に
https://xtech.nikkei.com/atcl/nxt/column/18/00001/11649/?ST=nxt_thmit_security
JVNVU#90646130 複数の三菱電機製品における重要情報の平文保存の脆弱性
https://jvn.jp/vu/JVNVU90646130/index.html
JVNVU#96364629 三菱電機製複数製品の複数のプロセスにWindowsショートカットの不適切な扱いの脆弱性
https://jvn.jp/vu/JVNVU96364629/index.html
JVNVU#93838985 三菱電機製複数製品の複数のサービス実行時に必要以上に高い権限が割り当てられている脆弱性
https://jvn.jp/vu/JVNVU93838985/index.html
JVNVU#93891820 三菱電機製複数製品における複数の脆弱性
https://jvn.jp/vu/JVNVU93891820/index.html
JVNVU#98894016 三菱電機製複数製品における複数の脆弱性
https://jvn.jp/vu/JVNVU98894016/index.html
