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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-70383— Arbitrary file overwrite vulnerability in DigiDoc4 client

Quick assessment

Affected
Estonian Information System Authority (RIA) DigiDoc4
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

爱沙尼亚信息系统管理局（RIA）DigiDoc4 客户端存在路径遍历漏洞，具体表现为对受限制目录的路径限制不当。 该问题影响 DigiDoc4 版本：4.0.0 至 4.11.0（不含）之间的所有版本。

CVSS 8.4 · High EPSS 0.15% · P5

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
Estonian Information System Authority (RIA) DigiDoc4 4.0.0< 4.11.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-70383

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Arbitrary file overwrite vulnerability in DigiDoc4 client
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Estonian Information System Authority (RIA) DigiDoc4 client. This issue affects DigiDoc4: from 4.0.0 before 4.11.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Estonian Information System Authority (RIA) DigiDoc4 4.0.0 ~ 4.11.0 -

II. Public POCs for CVE-2026-70383

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9047 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-70383

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-70383 (2)

IV. Related Vulnerabilities

Same vendor: Estonian Information System Authority (RIA)
Same weakness: CWE-22

V. Comments for CVE-2026-70383

No comments yet

Leave a comment