by Kastro
Paper/Archive/CVE-2020-10188

CVE-2020-10188

mitre — utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, bec…

EPSS 74%CVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 99.5.995 × 2019.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

advisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HLU6FL24BSQQEB2SJC26NLJ2MANQDA7Madvisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7FMTRRQTYKWZD2GMXX3GLZV46OLPCLVKadvisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3VJ6V2Z3JRNJOBVHSOPMAC76PSSKG6Areflists.debian.org/debian-lts-announce/2020/05/msg00012.htmladvisorytools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-telnetd-EFJrEzPxreflists.debian.org/debian-lts-announce/2020/08/msg00038.htmlreforacle.com/security-alerts/cpuApr2021.htmlrefappgateresearch.blogspot.com/2020/02/bravestarr-fedora-31-netkit-telnetd_28.htmlrefgithub.com/krb5/krb5-appl/blob/d00cd671dfe945791b33d4f1f6a5c57ae1667ef8/telnet/telnetd/utility.c#L205-L216refarista.com/en/support/advisories-notices/security-advisories/10702-security-advisory-48refopenwall.com/lists/oss-security/2026/01/20/8