medium Known exploitedREV. 01
CVE-2023-36844Juniper Junos EX — Variable Modification in J-Web
The web interface of Juniper's switches lets an unauthenticated caller set important environment variables of the scripting engine (PHP) behind it, which attackers chained into running code on the device.
Read the risk
THE VITAL STATS- CVSS score
- 5.3/ 10 CVSS v3.1
- EPSS probability
- 91% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2023-08-17
- Added to KEV
- 2023-11-13
- Exploit published
- Yes
- Confidence
- medium
- Kill chain
- initial access
- MITRE ATT&CK
- T1190
- Severity
- medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attacker needsNetwork access to the device web interface
Behind the card
4 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorysupportportal.juniper.netsupportportal.juniper.net
- 04Exploitpacketstormsecurity.compacketstormsecurity.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-08-07 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added | cisa.gov | 2026-08-07 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-08-07 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-08-07 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.