Cisco ASA/Firepower Threat Defense Connection resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Cisco ASA and Firepower Threat Defense. This affects an unknown part of the component Connection Handler. Executing a manipulation can lead to resource consumption. This vulnerability is tracked as CVE-2021-34792. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Cisco ASA and Firepower Threat Defense (Firewall Software) (affected version not known). This vulnerability affects some unknown functionality of the component Connection Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability.

The weakness was disclosed 10/28/2021 as cisco-sa-asa-ftd-dos-Unk689XY. The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2021-34792 since 06/15/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/15/2021 🔍
10/28/2021 +135 days 🔍
10/28/2021 +0 days 🔍
08/13/2026 +1750 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-asa-ftd-dos-Unk689XY
Status: Confirmed

CVE: CVE-2021-34792 (🔍)
GCVE (CVE): GCVE-0-2021-34792
GCVE (VulDB): GCVE-100-185572

Entryinfo

Created: 10/28/2021 06:19
Updated: 08/13/2026 05:54
Changes: 10/28/2021 06:19 (44), 10/28/2021 06:20 (6), 11/01/2021 07:24 (1), 11/01/2021 07:30 (18), 07/28/2023 15:08 (2), 08/13/2026 05:54 (17)
Complete: 🔍
Cache ID: 216::103

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