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CVSS 8.0 HIGH 🔴 ACTIVELY EXPLOITED Security Vulnerability

CVE-2026-43503: DirtyClone (CVE-2026-43503): JFrog's catch on the DirtyFrag fix regression, with a detect…

JFrog published a finding today on a regression in the DirtyFrag kernel fix. They named it DirtyClone (CVE-2026-43503). It is the same corru…

8.0CVSS Score
HIGHSeverity
NOCISA KEV
Security VulnerabilityImpact Type

📋 Vulnerability Details

CVE IDCVE-2026-43503
Vendorreddit_cyber
Affected ProductThreat Intelligence
Vulnerability TypeSecurity Vulnerability
CVSS Score8.0 (HIGH)
Actively Exploited✅ Yes
Patch StatusSee Vendor Advisory →
Reported ByCYBERDUDEBIVASH SENTINEL APEX Intelligence (via reddit_cyber)

🔬 Technical Analysis

JFrog published a finding today on a regression in the DirtyFrag kernel fix. They named it DirtyClone (CVE-2026-43503). It is the same corruption primitive as the DirtyFrag family (CVE-2026-43284 / CVE-2026-43500), reached through a different path. The original patch closed the known trigger but left the primitive reachable. DirtyClone routes the payload through the netfilter TEE clone target, which walks straight around the fix. Auditing adjacent paths for the same primitive was a clean idea on their part. They didn't provide an exploit.. I could not avoid. And, guess what ? Detectable by cool #eBPF code! (same line of our

🎯 Known Indicators of Compromise

{"type":"url","value":"https://medium.com/@miggo-engineering/">think-outside-the-box","confidence_score":0.82,"first_seen":"2026-06-26","source_count":1} {"type":"url","value":"https://github.com/rafaeldtinoco/security/tree/main/exploits/dirtyclone">https://github.com/","confidence_score":0.82,"first_seen":"2026-06-26","source_count":1} {"type":"url","value":"https://research.jfrog.com/post/dissecting-and-exploiting-linux-lpe-variant-dirtyclone-cve-2026-4350","confidence_score":0.82,"first_seen":"2026-06-26","source_count":1} {"type":"url","value":"https://www.reddit.com/user/rafael-d-tinoco">","confidence_score":0.82,"first_seen":"2026-06-26","source_count":1} {"type":"domain","value":"medium.com","confidence_score":0.75,"first_seen":"2026-06-26","source_count":1} {"type":"domain","value":"research.jfrog.com","confidence_score":0.75,"first_seen":"2026-06-26","source_count":1} {"type":"domain","value":"www.reddit.com","confidence_score":0.75,"first_seen":"2026-06-26","source_count":1}

📚 Advisory References

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