Security readout for executives and security teams
Plain-English summary
A remote unauthenticated attacker can overload affected Juniper Junos OS Evolved devices with specific hostbound traffic, causing delays or drops for hostbound protocols. The business impact is availability loss on network infrastructure, not data theft or tampering.
Executive priority
Treat this as a high-priority availability risk for affected Juniper infrastructure. It does not indicate confidentiality or integrity impact, but successful DoS against routing or control-plane-adjacent services can disrupt business connectivity.
Technical view
CVE-2022-22212 is a CWE-770 resource allocation flaw in the Packet Forwarding Engine. A high rate of specific hostbound traffic from PFE ports can create a sustained DoS condition affecting hostbound protocols on Junos OS Evolved 21.2 and 21.3 before fixed releases.
Likely exposure
Exposure is limited to Juniper Networks Junos OS Evolved 21.2 before 21.2R3-EVO and 21.3 before 21.3R2-EVO. The source states all Junos Evolved platforms are impacted in those trains, and versions before 21.2R1 are not affected.
Exploitation context
The CVSS vector indicates network attack, low complexity, no privileges, and no user interaction. The provided sources do not show CISA KEV listing or active exploitation evidence, so exploitation should not be described as observed in the wild.
Researcher notes
The source bundle identifies the vulnerable component as PFE and the condition as sustained high-rate specific hostbound traffic. It does not provide packet details, proof-of-concept status, or workaround specifics beyond affected and non-affected release boundaries.
Mitigation direction
- Inventory Junos OS Evolved devices and identify 21.2 or 21.3 deployments.
- Upgrade affected 21.2 systems to 21.2R3-EVO or a later non-affected release.
- Upgrade affected 21.3 systems to 21.3R2-EVO or a later non-affected release.
- Check Juniper advisory JSA69716 for platform-specific operational guidance.
- Prioritize internet-facing or untrusted-network-adjacent infrastructure first.
Validation and detection
- Confirm device software versions against the affected version ranges.
- Verify upgraded devices report non-affected Junos OS Evolved releases.
- Review monitoring for hostbound protocol delays, drops, or DoS symptoms.
- Confirm Junos OS Evolved versions before 21.2R1 are not incorrectly flagged.
- Document remaining exceptions and vendor guidance for each deferred device.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-770: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-22212 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.juniper.net/JSA69716CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.