CVE-2021-44228
Log4Shell: Unauthenticated Remote Code Execution via JNDI injection in Apache...
⚡ KEV — Known Exploited
CVSS 10.0 (Critical)
EPSS 0.9752 (1th pct)
Technical Description
Log4Shell: Unauthenticated Remote Code Execution via JNDI injection in Apache Log4j2.
Why this matters to your organisation:
CISA has confirmed active exploitation in the wild (KEV catalogue entry). The Exploit Prediction Scoring System (EPSS) estimates a 97.5% probability of exploitation within 30 days. The affected service is internet-facing, increasing exposure. This is a critical service for the organisation.
CISA has confirmed active exploitation in the wild (KEV catalogue entry). The Exploit Prediction Scoring System (EPSS) estimates a 97.5% probability of exploitation within 30 days. The affected service is internet-facing, increasing exposure. This is a critical service for the organisation.
Potential Impact
A vulnerability in log4j rated Critical (CVSS 10.0). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalogue, indicating it has been actively exploited in the wild.
✅ Recommended Next Action
Review CVE-2021-44228 and confirm whether log4j is in use.
Confidence: Not Applicable
The organisation does not use this product.
CVE Details
| Product | apache log4j |
| Version Range | <= 2.14.1 → ∞ |
| Installed | Unknown |
| Match Type | Product Not Used |
| CVSS | 10.0 |
| KEV | YES |
| EPSS | 0.9752 |
| Source |
NVD · Dec. 10, 2021 View reference ↗ |
Score Breakdown
⚡ KEV+40
🌐 Exposure+20
⭐ Importance+15
📈 EPSS+14.6
🔢 CVSS+10.0
⚠ Uncertainty-10
Total90