Security readout for executives and security teams
This flaw lets an unauthenticated network attacker influence important PHP environment variables in Juniper J-Web on affected Junos OS EX Series switches. By itself, the CVSS score is medium, but CISA lists it as known exploited, and Juniper notes it may be chained with other vulnerabilities. Organizations are exposed if they run affected Junos OS EX Series versions and J-Web is reachable by an attacker. Exposure is highest where management interfaces are internet-accessible or reachable from broad internal networks. Treat this as urgent for exposed EX Series management interfaces because CISA lists it as known exploited. Patch or mitigate internet-facing and broadly reachable J-Web first, then complete fleet-wide upgrades. Mitigation focus: Upgrade affected EX Series devices to the fixed Junos OS releases listed by Juniper.; Follow Juniper JSA72300 for current vendor mitigation and upgrade guidance.; Restrict J-Web access to trusted management networks during remediation..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookupCVE-2023-36844 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
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:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://supportportal.juniper.net/JSA72300CVE reference · vendor-advisory, mitigation
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36844CVE reference · government-resource
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.
PHP External Variable Modification
PHP External Variable Modification represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.