GHSA-9f52-hpvw-v96w · Severity: high · Ecosystem: maven — Improper Validation of Specified Quantity in Input in Eclipse Hono
In Eclipse Hono version 1.3.0 and 1.4.0 the AMQP protocol adapter does not verify the size of AMQP messages received from devices. In particular, a device may send messages that are bigger than the max-message-size that the protocol adapter has indicated during link establishment. While the AMQP 1.0 protocol explicitly disallows a peer to send such messages, a hand crafted AMQP 1.0 client could exploit this behavior in order to send a message of unlimited size to the adapter, eventually causing the adapter to fail with an out of memory exception.
Conclusion & alert: CVE-2020-27217 is rated Moderate Risk (54.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.29%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.33% | 1.29% | +0.96% |
| 2 | 2025-03-30 | 0.39% | 0.33% | -0.06% |
| 3 | 2025-03-29 | — | 0.39% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-9f52-hpvw-v96w · Severity: high · Ecosystem: maven — Improper Validation of Specified Quantity in Input in Eclipse Hono
| URL | Tags |
|---|---|
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=567068 | Issue Tracking Vendor Advisory |