Juniper Junos OS prior 22.3R2 bbe-smgd unusual condition

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Juniper Junos OS. The affected element is an unknown function of the component bbe-smgd. Performing a manipulation results in unusual condition. This vulnerability is identified as CVE-2023-28974. The attack can only be performed from the local network. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Juniper Junos OS (Router Operating System). It has been classified as problematic. This affects some unknown functionality of the component bbe-smgd. The manipulation with an unknown input leads to a unusual condition vulnerability. CWE is classifying the issue as CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. This is going to have an impact on availability. The summary by CVE is:

An Improper Check for Unusual or Exceptional Conditions vulnerability in the bbe-smgd of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In a Broadband Edge / Subscriber Management scenario on MX Series when a specifically malformed ICMP packet addressed to the device is received from a subscriber the bbe-smgd will crash, affecting the subscriber sessions that are connecting, updating, or terminating. Continued receipt of such packets will lead to a sustained DoS condition. When this issue happens the below log can be seen if the traceoptions for the processes smg-service are enabled: BBE_TRACE(TRACE_LEVEL_INFO, "%s: Dropped unsupported ICMP PKT ... This issue affects Juniper Networks Junos OS on MX Series: All versions prior to 19.4R3-S11; 20.2 versions prior to 20.2R3-S7; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S2; 22.1 versions prior to 22.1R2-S2, 22.1R3; 22.2 versions prior to 22.2R2; 22.3 versions prior to 22.3R1-S2, 22.3R2.

The weakness was released 04/18/2023 as JSA70599. The advisory is shared at supportportal.juniper.net. This vulnerability is uniquely identified as CVE-2023-28974 since 03/29/2023. Neither technical details nor an exploit are publicly available.

Upgrading to version 19.4R3-S1, 20.2, 20.2R3-S7, 20.3, 20.3R3-S6, 20.4, 20.4R3-S6, 21.1, 21.1R3-S4, 21.2, 21.2R3-S4, 21.3, 21.3R3-S3, 21.4, 21.4R3-S2, 22.1, 22.1R2-S2, 22.1R3, 22.2, 22.2R2, 22.3, 22.3R1-S2 or 22.3R2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-32592). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 7.4
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Unusual condition
CWE: CWE-754
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: 🔍

Upgrade: Junos OS 19.4R3-S1/20.2/20.2R3-S7/20.3/20.3R3-S6/20.4/20.4R3-S6/21.1/21.1R3-S4/21.2/21.2R3-S4/21.3/21.3R3-S3/21.4/21.4R3-S2/22.1/22.1R2-S2/22.1R3/22.2/22.2R2/22.3/22.3R1-S2/22.3R2

Timelineinfo

03/29/2023 🔍
04/18/2023 +20 days 🔍
04/18/2023 +0 days 🔍
12/08/2025 +964 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA70599
Status: Confirmed

CVE: CVE-2023-28974 (🔍)
GCVE (CVE): GCVE-0-2023-28974
GCVE (VulDB): GCVE-100-226221
EUVD: 🔍

Entryinfo

Created: 04/18/2023 10:32
Updated: 12/08/2025 00:41
Changes: 04/18/2023 10:32 (50), 05/05/2023 16:58 (11), 12/08/2025 00:41 (16)
Complete: 🔍
Cache ID: 216::103

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