Vulnerability in Lin-Snow Ech0
CVE-2026-77151
A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult. Upgrading to version 5.4.2 can resolve this issue. The patch is named 9ce19a3b0d0765086a655f45d3a706ec1810404f. It is recommended to upgrade the affected component.
Vulnerability class: POODLE (CVE-2014-3566)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Lin-Snow Ech0 — versions 5.4.0, 5.4.1
Weakness classification (CWE)
References
- vuldb.com/vuln/393736 (technical-description, vdb-entry)
- vuldb.com/vuln/393736/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-77151 (third-party-advisory)
- vuldb.com/submit/881015 (third-party-advisory)
- github.com/lin-snow/Ech0/issues/314 (issue-tracking)
- github.com/lin-snow/Ech0/pull/315 (issue-tracking, patch)
- github.com/lin-snow/Ech0/commit/9ce19a3b0d0765086a655f45d3a706ec1810404f (patch)
- github.com/lin-snow/Ech0/releases/tag/ech0-5.4.2 (patch)
- github.com/lin-snow/Ech0/ (product)
Frequently asked questions
- What is CVE-2026-77151?
- CVE-2026-77151 is a low-severity vulnerability in Lin-Snow Ech0, classified under Cryptographic Issues. CVSS score: 3.7/10. Published 2026-08-20.
- How severe is CVE-2026-77151?
- Low severity. CVSS v3 base score is 3.7 out of 10.