What is the CVSS score of CVE-2021-25689?

CVE-2021-25689 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: 1.5%.

Pcoip Soft Client CVE-2021-25689

CRITICAL

Out-of-bounds Write (CWE-787)

2021-02-11 security@teradici.com

Buffer Overflow Memory Corruption Pcoip Soft Client

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

Feb 11, 2021 - 18:15 nvd

CRITICAL 9.8

DescriptionNVD

An out of bounds write in Teradici PCoIP soft client versions prior to version 20.10.1 could allow an attacker to remotely execute code.

AnalysisAI

An out of bounds write in Teradici PCoIP soft client versions prior to version 20.10.1 could allow an attacker to remotely execute code. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. An out of bounds write in Teradici PCoIP soft client versions prior to version 20.10.1 could allow an attacker to remotely execute code. Affected products include: Teradici Pcoip Soft Client. Version information: version 20.10.1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).