Improper Validation of Specified Quantity in Input in Eclipse Hono

published 2020-11-13 5 y ago modified 2026-06-17 4 mo ago also GHSA-9f52-hpvw-v96w , EUVD-2022-0938

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

maven org.eclipse.hono:hono-core 1.4.3

Exploit prediction

1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
maven	org.eclipse.hono:hono-core	<1.4.3	1.4.3

Affected products

The Eclipse Foundation Eclipse Hono

Classification

Weakness

CWE-1284 Improper Validation of Specified Quantity in Input

References

bugs.eclipse.org /bugs/show_bug.cgi?id=567068
web, issue-tracking, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2020-27217
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary