CVE-2020-6582
Nagios NRPE 3.2.1 has a Heap-Based Buffer Overflow, as demonstrated by interpretation of a small negative number as a large positive number during a bzero call.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Nagios NRPE 3.2.1 has a Heap-Based Buffer Overflow, as demonstrated by interpretation of a small negative number as a large positive number during a bzero call.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.44% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-681, CWE-787
- Affected
- nagios/remote plug in executor · fedoraproject/fedora
- Source
- cve@mitre.org
EPSS 4.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://herolab.usd.de/security-advisories/Third Party Advisory
- https://herolab.usd.de/security-advisories/usd-2020-0001/Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DNGKXVDB43E3KQRA6W5QZT3Z46XZLQM/
- https://herolab.usd.de/security-advisories/Third Party Advisory
- https://herolab.usd.de/security-advisories/usd-2020-0001/Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DNGKXVDB43E3KQRA6W5QZT3Z46XZLQM/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.