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CVE-2026-88830— BusyBox TLS Montgomery归约堆溢出漏洞

一分钟漏洞结论

影响对象
Red Hat Red Hat Hardened Images
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.

CVSS 7.5 · High
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一、 漏洞 CVE-2026-88830 基础信息

漏洞信息

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Vulnerability Title
Busybox: busybox: tls montgomery reduction allocates bytes instead of digits, causing a pre-auth heap buffer overflow
来源: CVE Program / CVE List V5
Vulnerability Description
A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
缓冲区大小计算不正确
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
Red Hat Red Hat Hardened Images - cpe:/a:redhat:hummingbird:1

二、漏洞 CVE-2026-88830 的公开POC

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三、漏洞 CVE-2026-88830 的情报信息

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CVE-2026-88830 其他参考 (2)

同批安全公告 · Red Hat · 2026-09-23 · 共 29 条

CVE-2026-84502 9.9 CRITICAL Automation-controller: automation-controller-container: automation-controller: project scm
CVE-2026-84474 9.9 CRITICAL Automation-controller: automation-controller-container: automation-controller: view_jobtem
CVE-2026-96275 8.8 HIGH Flatpak 额外数据提取导致的 root 任意写漏洞
CVE-2026-76648 8.5 HIGH Automation-controller: automation-controller-container: aap controller: copyapiview.post()
CVE-2026-84486 8.2 HIGH Automation-controller: automation-controller-container: automation-controller: unauthentic
CVE-2026-96442 7.8 HIGH Emacs 5.3920 修复不完整致远程代码执行
CVE-2026-96512 7.8 HIGH Sudo TZ环境变量绕过时间授权漏洞
CVE-2026-84499 7.7 HIGH Automation-controller: automation-controller-container: automation-controller: write-only
CVE-2026-96541 7.5 HIGH Gnome-remote-desktop: gnome-remote-desktop: unauthenticated rdp sockets lack a handshake d
CVE-2026-88832 7.3 HIGH BusyBox romfs 卷 ID 解析堆溢出漏洞
CVE-2026-96445 6.8 MEDIUM Keycloak 代理头部条件OTP绕过漏洞
CVE-2026-88839 6.7 MEDIUM Busybox: busybox: passwd/group parser writes heap pointers out of bounds due to stale toke
CVE-2026-88837 6.5 MEDIUM Busybox: busybox: httpd misidentifies yescrypt password hashes as plaintext, inverting aut
CVE-2026-88835 6.1 MEDIUM Busybox: busybox: dpkg read_package_field() steps past nul terminator, causing out-of-boun
CVE-2026-88840 5.3 MEDIUM Busybox: busybox: tls ssl_server reads one byte out of bounds when parsing truncated clien
CVE-2026-88831 5.3 MEDIUM Busybox: busybox: httpd silently fails open when ip deny rules contain invalid cidr prefix
CVE-2026-71459 5.0 MEDIUM Automation-controller: automation-controller-container: automation-controller: jobjobevent
CVE-2026-71458 5.0 MEDIUM Automation-controller: automation-controller-container: automation-controller: named-url 4
CVE-2026-96545 4.4 MEDIUM Gimp: gimp: out-of-bounds heap read in the 4bpp tim image loader
CVE-2026-71460 4.3 MEDIUM Automation-controller: automation-controller-container: automation-controller: any authent

显示前 20 条，共 29 条。 查看全部 → →

IV. Related Vulnerabilities

Same product: Red Hat Hardened Images
Same vendor: Red Hat
Same weakness: CWE-131

V. Comments for CVE-2026-88830

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