Is CVE-2021-34998 in the CISA KEV catalog?

No. CVE-2021-34998 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-34998?

CVE-2021-34998 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-34998?

CVE-2021-34998 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-34998?

Upgrade panda antivirus to 20.02.00 or later.

CVE & CISA-KEV Catalog

CVE-2021-34998

HIGH

7.8

CVSS v3

NVD

Description

This vulnerability allows local attackers to escalate privileges on affected installations of Panda Security Free Antivirus 20.2.0.0. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the use of named pipes. The issue results from allowing an untrusted process to impersonate the client of a pipe. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-14208.

CWE-250 CWE-269Improper Privilege Management

How to fix

Remediation Available

panda antivirusNVD

Affected:< 20.02.00Fixed in:20.02.00CVE-2021-34998derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Vendor Advisory1

pandasecurity.com

Third-Party Advisory1

zerodayinitiative.com

Related Vulnerabilities

Other CWE-250 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-1222	High	8.6	64%	-	Fix
CVE-2025-12420	Critical	9.8	45%	-	Fix
CVE-2024-38813	High	7.5	17%	KEV	Fix
CVE-2025-34515	Critical	9.8	7.3%	-	-
CVE-2026-29205	High	8.6	7.2%	-	-
CVE-2019-16765	High	7.4	4.7%	-	Fix

Embed a live status badge for CVE-2021-34998

Markdown

[![CVE-2021-34998](https://tridentstack.com/cve/badge/CVE-2021-34998.svg)](https://tridentstack.com/cve/CVE-2021-34998)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-34998"><img src="https://tridentstack.com/cve/badge/CVE-2021-34998.svg" alt="CVE-2021-34998"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.