A CWE-552: Files or Directories Accessible to External Parties vulnerability exists in…
Priority LOW 31CWE-552Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-552.
Summary
A CWE-552: Files or Directories Accessible to External Parties vulnerability exists in Easergy T300 with firmware V2.7.1 and older that could expose files or directory content when access from an attacker is not restricted or incorrectly restricted.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00652 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Easergy T300 with firmware V2.7.1 and older | Easergy T300 with firmware V2.7.1 and older | — | No fix listed | CNA |
- Easergy T300 with firmware V2.7.1 and older Vendor— Affected Easergy T300 with firmware V2.7.1 and older Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:easergy_t300_firmware:*:*:*:*:*:*:*:* | up to 2.7.1 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:easergy_t300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:easergy_t300_firmware:*:*:*:*:*:*:*:* Versions up to 2.7.1 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:easergy_t300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22769
- 2026-10-03 Alias added: GHSA-979h-w3gc-xrmq
- 2026-10-14 EPSS moved to the 50th–90th percentile
References
More Schneider Electric Easergy T300 Firmware vulnerabilities
- TI-2020-15418 Rockwell Automation ISaGRAF5 Runtime Relative Path Traversal CVSS 3.1CRITICAL 9.8
- TI-2020-06084 Improper access control in Easergy T300 with firmware 2.7 and older CVSS 3.1CRITICAL 9.8
- TI-2020-17145 Missing authorization in Easergy T300 CVSS 3.1CRITICAL 9.8
- TI-2020-06035 A CWE-1103: Use of Platform-Dependent Third Party Components with vulnerabilities… CVSS 3.1CRITICAL 9.8
- TI-2020-06031 Missing brute-force protection in Easergy T300 CVSS 3.1CRITICAL 9.8
- TI-2020-15420 Rockwell Automation ISaGRAF5 Runtime Cleartext Transmission of Sensitive Information CVSS 3.1HIGH 8.8
Sources
- CVE-2021-22769 · CVE Program
- CVE-2021-22769 · NVD
- FIRST EPSS
- GHSA-979h-w3gc-xrmq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences