high Known exploitedREV. 01
CVE-2026-34926Trend Micro Apex One — traversal pushes code to managed agents
An administrator on an on-premises Trend Micro Apex One server can use a directory traversal to alter a key table and have the server push attacker-supplied code out to every agent it manages.
Read the risk
THE VITAL STATS- CVSS score
- 6.7/ 10 CVSS v3.1
- EPSS probability
- 13% Likelihood of exploitation
- Attack complexity
- High Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2026-05-21
- Added to KEV
- 2026-05-21
- Exploit published
- Not recorded
- Confidence
- high
- Kill chain
- lateral movement
- MITRE ATT&CK
- —
- Severity
- high
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
Attacker needsAdministrative credentials for the on-premises Apex One server, obtained some other way, plus access to the server itself.
Behind the card
5 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorysuccess.trendmicro.comsuccess.trendmicro.com
- 04Vendor advisorysuccess.trendmicro.comsuccess.trendmicro.com
- 05Writeupjvn.jpjvn.jp
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 | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added | cisa.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-09-24 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.