CVE-2022-22160 | Junos OS: MX Series: The bbe-smgd process crashes if an unsupported configuration exists and a PPPoE client sends a specific message

An Unchecked Error Condition vulnerability in the subscriber management daemon (smgd) of Juniper Networks Junos OS allows an unauthenticated adjacent attacker to cause a crash of and thereby a Denial of Service (DoS). In a subscriber management / broadband edge environment if a single session group configuration contains dual-stack and a pp0 interface, smgd will crash and restart every time a PPPoE client sends a specific message. This issue affects Juniper Networks Junos OS on MX Series: 16.1 version 16.1R1 and later versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 16.1R1.

Published: 2022-01-19 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-22160 is rated Low Risk (34.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-22160

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-02 0.19% 0.08% -0.11%
2 2025-11-21 0.08% 0.19% +0.11%
3 2025-11-18 — 0.08% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-22160

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
2.9 2.0 LOW
AV:A/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 5.5 2.9 [email protected]

Weakness enumeration for CVE-2022-22160

Affected software / configurations for CVE-2022-22160

Vendor Product Version Raw CPE
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:-:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r3-s10:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r3-s11:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r3-s8:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r4:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r4-s12:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r4-s2:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r4-s3:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r4-s4:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r4-s6:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r4-s8:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r4-s9:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r5:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r5-s4:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r6:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r6-s1:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r6-s3:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r6-s4:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r6-s6:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r7:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r7-s2:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r7-s3:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r7-s4:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r7-s5:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r7-s6:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r7-s7:*:*:*:*:*:*
juniper junos 16.1 cpe:2.3:o:juniper:junos:16.1:r7-s8:*:*:*:*:*:*
juniper junos 16.1x65 cpe:2.3:o:juniper:junos:16.1x65:*:*:*:*:*:*:*
juniper junos 16.1x65 cpe:2.3:o:juniper:junos:16.1x65:-:*:*:*:*:*:*
juniper junos 16.1x65 cpe:2.3:o:juniper:junos:16.1x65:d20:*:*:*:*:*:*
juniper junos 16.1x65 cpe:2.3:o:juniper:junos:16.1x65:d30:*:*:*:*:*:*
juniper junos 16.1x65 cpe:2.3:o:juniper:junos:16.1x65:d35:*:*:*:*:*:*
juniper junos 16.1x65 cpe:2.3:o:juniper:junos:16.1x65:d40:*:*:*:*:*:*
juniper junos 16.1x65 cpe:2.3:o:juniper:junos:16.1x65:d48:*:*:*:*:*:*
juniper junos 16.1x70 cpe:2.3:o:juniper:junos:16.1x70:*:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:-:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r1:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r1-s6:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2-s1:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2-s10:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2-s2:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2-s5:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2-s6:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2-s7:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2-s8:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r2-s9:*:*:*:*:*:*
juniper junos 16.2 cpe:2.3:o:juniper:junos:16.2:r3:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:-:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r1-s7:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s1:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s10:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s11:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s2:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s3:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s4:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s5:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s6:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s7:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s8:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r2-s9:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r3:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r3-s1:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r3-s2:*:*:*:*:*:*
juniper junos 17.1 cpe:2.3:o:juniper:junos:17.1:r3-s3:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:-:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:r1-s1:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:r1-s3:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:r1-s5:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:r1-s6:*:*:*:*:*:*
juniper junos 17.2 cpe:2.3:o:juniper:junos:17.2:r1-s7:*:*:*:*:*:*

References for CVE-2022-22160

URL Tags
https://kb.juniper.net/JSA11268 Vendor Advisory
cvelogic Threat Intelligence