What is the CVSS score of CVE-2020-10188?

CVE-2020-10188 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 74.5%.

Is there a patch available for CVE-2020-10188?

Yes, a patch is available for CVE-2020-10188. Update the affected software to the latest version immediately.

Netkit Telnet CVE-2020-10188

CRITICAL

Classic Buffer Overflow (CWE-120)

2020-03-06 cve@mitre.org

Buffer Overflow RCE Netkit Telnet Fedora Debian Linux Eos Communications Performance Intelligence Center Junos

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 06, 2020 - 15:15 nvd

CRITICAL 9.8

DescriptionNVD

AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Buffer Copy without Size Check vulnerability could allow attackers to overflow a buffer to corrupt adjacent memory.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. 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 products include: Netkit Telnet Project Netkit Telnet, Fedoraproject Fedora, Debian Debian Linux, Arista Eos, Oracle Communications Performance Intelligence Center. Version information: through 0.17.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.