CVE & CISA-KEV Catalog

CVE-2021-34794

MEDIUM
5.3
CVSS v3
NVD

Description

A vulnerability in the Simple Network Management Protocol version 3 (SNMPv3) access control functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to query SNMP data. This vulnerability is due to ineffective access control. An attacker could exploit this vulnerability by sending an SNMPv3 query to an affected device from a host that is not permitted by the SNMPv3 access control list. A successful exploit could allow the attacker to send an SNMP query to an affected device and retrieve information from the device. The attacker would need valid credentials to perform the SNMP query.

How to fix

Remediation Available
adaptive security appliance softwareNVD
Affected:>= 9.15.0, < 9.15.1.7Fixed in:9.15.1.7CVE-2021-34794derived from NVD
firepower threat defenseNVD
Affected:>= 6.7.0, < 6.7.0.1Fixed in:6.7.0.1CVE-2021-34794derived 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 VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityNone

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

Exploit Intelligence

0.91%probability of exploitation in 30 days
56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-27350Critical9.8100%KEV + RansomFix
CVE-2019-1653High7.5100%KEV-
CVE-2023-23752Medium5.3100%KEVFix
CVE-2023-29298High7.5100%KEV-
CVE-2023-38205High7.5100%KEV-
CVE-2024-27348Critical9.899%KEVFix
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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.