CitrixBleed 2 might be actively exploited (CVE-2025-5777)
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2023-4966 | Info-Disclosure Buffer Overflow (CitrixBleed) in Citrix NetScaler ADC/Gateway | 7.5 | 100% | KEVRansomware | KEV |
| CVE-2025-5349 | Improper access control on the NetScaler Management Interface in NetScaler ADC and NetScaler Gateway | 8.7 | 5% | ||
| CVE-2025-5777 | Out-of-Bounds Read (Memory Overread) in Citrix NetScaler ADC and Gateway | 9.3 | 100% | KEVRansomware | KEV |
| CVE-2025-6543 | Memory Buffer Overflow in Citrix NetScaler ADC and Gateway Exploited in the Wild | 9.2 | 10% | KEV | KEV |
From the original article
2 min read at helpnetsecurity.com
While Citrix has observed some instances where CVE-2025-6543 has been exploited on vulnerable NetScaler networking appliances, the company still says that they don’t have evidence of exploitation for CVE-2025-5349 or CVE-2025-5777, both of which have been patched earlier this month.
By @zeljkazorz · helpnetsecurity.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.