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CVE-2022-22188

25
FAUCET Score

CVE-2022-22188 is a Heap-based Buffer Overflow vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS, specifically impacting QFX5100/QFX5110/QFX5120/QFX5200/QFX5210/EX4600/EX4650 Series devices running versions 20.2R1 and later prior to 20.2R2, when configured with storm control profiling. This vulnerability allows an unauthenticated, network-based attacker to trigger a Denial of Service (DoS) by flooding the device with traffic. Rated with a CVSS score of 7.5 (High), it has a low attack complexity and requires no user interaction, leading to a complete loss of availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
20.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*
20.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*
20.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:*
20.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.48%
Probability of exploitation in next 30 days
EPSS Percentile
71.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0148 is in the 53rd percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 / JSA69497
ExploitVendor Advisory