CVE-2026-94184— Fetchmail: fetchmail: stack-based buffer overflow in ntlm authentication (fetchmail-sa-2026-01)
一分钟漏洞结论
影响对象
Red Hat Red Hat Enterprise Linux 10
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 stack-based buffer overflow flaw was found in fetchmail when built with NTLM support. A malicious or compromised mail server advertising NTLM authentication can send a crafted Type 2 challenge that causes fetchmail to write past a fixed stack buffer while bu
影响版本矩阵 5
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 全部 |
affected |
| Red Hat | Red Hat Enterprise Linux 6 | 全部 |
affected |
| Red Hat | Red Hat Enterprise Linux 7 | 全部 |
affected |
| Red Hat | Red Hat Enterprise Linux 8 | 全部 |
affected |
| Red Hat | Red Hat Enterprise Linux 9 | 全部 |
affected |
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一、 漏洞 CVE-2026-94184 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Fetchmail: fetchmail: stack-based buffer overflow in ntlm authentication (fetchmail-sa-2026-01)
来源: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow flaw was found in fetchmail when built with NTLM support. A malicious or compromised mail server advertising NTLM authentication can send a crafted Type 2 challenge that causes fetchmail to write past a fixed stack buffer while building the NTLM authenticate response. This may lead to remote code execution depending on stack-frame layout, or to authentication failure or process termination under memory hardening.
Affects v5.0.8 through v6.6.6.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
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 Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
二、漏洞 CVE-2026-94184 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-94184 厂商安全公告 (2)
CVE-2026-94184 邮件列表归档 (1)
CVE-2026-94184 其他参考 (1)
同批安全公告 · Red Hat · 2026-09-21 · 共 13 条
| CVE-2026-92574 | 8.8 HIGH | Cri-o 检查点恢复绕过安全上下文 |
| CVE-2026-80110 | 8.1 HIGH | Pki-core: dogtag pki v2 rest acl filter's reverse-lexicographic tie-break lets a ca agent |
| CVE-2026-15801 | 8.0 HIGH | cri-o容器检查点恢复验证不足漏洞 |
| CVE-2026-94449 | 7.5 HIGH | Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyg |
| CVE-2026-75939 | 7.4 HIGH | Openshift/oc-mirror: release signature verification: openpgp signatureerror checked before |
| CVE-2026-94368 | 7.1 HIGH | Noobaa-core: noobaa-core: presigned put url escalation to copyobject via unsigned x-amz-co |
| CVE-2026-94215 | 5.5 MEDIUM | Keycloak 跨域客户端读写越权漏洞 |
| CVE-2026-93433 | 5.5 MEDIUM | Libstoragemgmt: libstoragemgmt: denial of service via stack buffer overflow in scsi vpd pa |
| CVE-2026-94213 | 4.9 MEDIUM | Keycloak身份服务策略端点用户身份泄露 |
| CVE-2026-92382 | 4.1 MEDIUM | Usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads t |
| CVE-2026-94217 | 3.5 LOW | Keycloak-services UMA资源名冲突权限绕过漏洞 |
| CVE-2026-94218 | 3.1 LOW | Keycloak 2FA设置强制绕过漏洞 |
IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 10
-
CVE-2026-13087
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Libstoragemgmt: libstoragemgmt: denial of service via stack
Same vendor: Red Hat
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Libslirp: libslirp: heap buffer overflow in dhcpv6/tftp resp
Same weakness: CWE-121
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V. Comments for CVE-2026-94184
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