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CVE-2026-119146— ProFTPD before 1.3.9e and 1.3.10rc5 Buffer Overflow via mod_rewrite utf8trans RewriteMap

Quick assessment

Affected
ProFTPD Project ProFTPD
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 ProFTPD 1.3.9e 和 1.3.10rc5 之前的版本中，mod_rewrite 模块的 int:utf8trans RewriteMap 存在缓冲区溢出漏洞。远程攻击者可通过发送超过 1024 字节的 FTP 命令参数（若预登录命令被重写，则无需认证），覆盖静态缓冲区，从而破坏会话内存并导致会话崩溃。

CVSS 5.6 · Medium
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I. Basic Information for CVE-2026-119146

Vulnerability Information
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Vulnerability Title
ProFTPD before 1.3.9e and 1.3.10rc5 Buffer Overflow via mod_rewrite utf8trans RewriteMap
Source: CVE Program / CVE List V5
Vulnerability Description
ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ProFTPD Project ProFTPD 0 ~ 1.3.9e -

II. Public POCs for CVE-2026-119146

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-119146

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Patches & Fixes for CVE-2026-119146 (1)

Vendor Advisories for CVE-2026-119146 (1)

Security Blog Posts for CVE-2026-119146 (1)

Vendor Pages for CVE-2026-119146 (2)

Same Patch Batch · ProFTPD Project · 2026-10-30 · 3 CVEs total

CVE-2026-119364 5.3 MEDIUM ProFTPD through 1.3.9e and 1.3.10rc4 mod_copy Symlink Following Write Bypass
CVE-2026-119147 4.3 MEDIUM ProFTPD before 1.3.9e and 1.3.10rc5 mod_sftp Copy-File Authorization Bypass

IV. Related Vulnerabilities

Same product: ProFTPD
Same vendor: ProFTPD Project
Same weakness: CWE-120