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CVE-2022-22166

22
FAUCET Score

CVE-2022-22166 is an Improper Validation of Specified Quantity in Input vulnerability in Juniper Networks Junos OS, specifically affecting the routing protocol daemon (rpd) in versions 20.4 prior to 20.4R3-S1 and 21.1 prior to 21.1R2-S2, 21.1R3. An unauthenticated attacker can trigger a Denial of Service (DoS) by sending a malformed BGP SR-TE policy tunnel attribute in a BGP update message, causing the rpd to crash if BGP update tracing is enabled. This vulnerability has a CVSS score of 6.5 (Medium), indicating it can be exploited over the network with low attack complexity, leading to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:*
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:*
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 43rd percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

junipervendor investigatingvia nvd_reference
View patch

References

kb.juniper.net / JSA11274
Vendor Advisory