Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-106026— tftp-hpa 5.4 before 6.0 Out-of-Bounds Read via tftpd Remap Jump Rule

Quick assessment

Affected
H. Peter Anvin tftp-hpa
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.

tftp-hpa 5.4 至 6.0 之前的版本中存在一个越界读取漏洞，该漏洞位于 tftpd/remap.c 中的 rewrite_string() 函数，在搜索跳转标签时会遍历堆内存。未经身份验证的远程攻击者可以发送文件名匹配 remap 跳转规则的读或写请求，从而导致 forked 的 in.tftpd 请求处理程序崩溃。

CVSS 3.7 · Low

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-106026

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
tftp-hpa 5.4 before 6.0 Out-of-Bounds Read via tftpd Remap Jump Rule
Source: CVE Program / CVE List V5
Vulnerability Description
tftp-hpa 5.4 before 6.0 contains an out-of-bounds read vulnerability in rewrite_string() in tftpd/remap.c that walks heap memory during jump label searches. Unauthenticated remote attackers can send read or write requests whose filename matches a remap jump rule to crash the forked in.tftpd request handler.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
H. Peter Anvin tftp-hpa 5.4 ~ 6.0 -

II. Public POCs for CVE-2026-106026

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-106026

请登录查看更多情报信息。

Other References for CVE-2026-106026 (4)

IV. Related Vulnerabilities

Same weakness: CWE-125

V. Comments for CVE-2026-106026

No comments yet

Leave a comment