CVE-2025-5777

HIGHNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-07-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
7.5
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • 724 internet-exposed hosts are running an affected version right now
  • Actively exploited in the wild (CISA-KEV)
  • Linked to ransomware campaigns
CISA-KEV: ExploitedEPSS: 100%CVSS: 7.5Exploit: NoneExposed: 724

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Insufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server

Live · internet exposure

724 internet-exposed hosts are running an affected version of CVE-2025-5777 right now.

across 18 countries (Australia, Lithuania, United Kingdom, United States, Germany)top: netscaler_gateway🔒 ransomware-linked
See the live KEV-Exposure radar →Found passively from public internet-scan data — aggregate, host-redacted.

EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.

CVSS v3
7.5
EG Score
9.0(high)
EPSS
100.0%
KEV
⚠ Exploited

Published

June 17, 2025

Last Modified

October 30, 2025

Advisory Details (8)

Auto-updated Jun 4, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-5777
generic🔴 Active Exploitation

CVE-2025-5777: Citrix Bleed 2 Opens Old Wounds

https://reliaquest.com/blog/threat-spotlight-citrix-bleed-2-vulnerability-in-netscaler-adc-gateway-devices/
generic

CISA agrees that CitrixBleed 2 is under exploit

https://www.theregister.com/2025/07/10/cisa_citrixbleed_kev/
generic

NetScaler Critical Security Updates for CVE-2025-6543 and CVE-2025-5777

https://www.netscaler.com/blog/news/netscaler-critical-security-updates-for-cve-2025-6543-and-cve-2025-5777/
generic🔴 Active Exploitation

CISA tags Citrix Bleed 2 as exploited, gives agencies a day to patch

https://www.bleepingcomputer.com/news/security/cisa-tags-citrix-bleed-2-as-exploited-gives-agencies-a-day-to-patch/
generic

How Much More Must We Bleed? - Citrix NetScaler Memory Disclosure (CitrixBleed 2 CVE-2025-5777)

https://labs.watchtowr.com/how-much-more-must-we-bleed-citrix-netscaler-memory-disclosure-citrixbleed-2-cve-2025-5777/
generic🔴 Active Exploitation

CVE-2025-5777: CitrixBleed 2 Write-Up… Maybe?

https://horizon3.ai/attack-research/attack-blogs/cve-2025-5777-citrixbleed-2-write-up-maybe/
generic

Loading...

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX693420

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 48× in last 7d / 194× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 362 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-22 12:13 UTCGHSA enrichment
  3. 2026-07-22 08:06 UTCGHSA enrichment
  4. 2026-07-22 03:59 UTCGHSA enrichment
  5. 2026-07-21 23:51 UTCGHSA enrichment
  6. 2026-07-21 19:43 UTCGHSA enrichment
  7. 2026-07-21 15:34 UTCEG score recompute
  8. 2026-07-21 15:33 UTCGHSA enrichment
  9. 2026-07-21 15:24 UTCEPSS rescore
  10. 2026-07-21 14:37 UTCCISA KEV update
  11. 2026-07-21 11:25 UTCGHSA enrichment
  12. 2026-07-21 07:17 UTCGHSA enrichment
  13. 2026-07-21 03:09 UTCGHSA enrichment
  14. 2026-07-20 23:02 UTCGHSA enrichment
  15. 2026-07-20 18:55 UTCGHSA enrichment
  16. 2026-07-20 14:48 UTCGHSA enrichment
  17. 2026-07-20 10:41 UTCGHSA enrichment
  18. 2026-07-20 06:34 UTCGHSA enrichment
  19. 2026-07-20 02:25 UTCGHSA enrichment
  20. 2026-07-19 22:18 UTCGHSA enrichment
  21. 2026-07-19 18:11 UTCGHSA enrichment
  22. 2026-07-19 14:04 UTCGHSA enrichment
  23. 2026-07-19 09:57 UTCGHSA enrichment
  24. 2026-07-19 05:50 UTCGHSA enrichment
  25. 2026-07-19 01:42 UTCGHSA enrichment
Show 75 more
  1. 2026-07-18 21:35 UTCGHSA enrichment
  2. 2026-07-18 17:28 UTCGHSA enrichment
  3. 2026-07-18 13:21 UTCGHSA enrichment
  4. 2026-07-18 09:14 UTCGHSA enrichment
  5. 2026-07-18 05:06 UTCGHSA enrichment
  6. 2026-07-18 01:00 UTCGHSA enrichment
  7. 2026-07-17 20:53 UTCGHSA enrichment
  8. 2026-07-17 16:46 UTCGHSA enrichment
  9. 2026-07-17 12:38 UTCGHSA enrichment
  10. 2026-07-17 08:31 UTCEG score recompute
  11. 2026-07-17 08:30 UTCGHSA enrichment
  12. 2026-07-17 04:23 UTCGHSA enrichment
  13. 2026-07-17 00:16 UTCGHSA enrichment
  14. 2026-07-16 20:09 UTCGHSA enrichment
  15. 2026-07-16 17:04 UTCCISA KEV update
  16. 2026-07-16 16:01 UTCGHSA enrichment
  17. 2026-07-16 11:55 UTCGHSA enrichment
  18. 2026-07-16 07:48 UTCGHSA enrichment
  19. 2026-07-16 03:41 UTCGHSA enrichment
  20. 2026-07-15 23:34 UTCGHSA enrichment
  21. 2026-07-15 19:27 UTCGHSA enrichment
  22. 2026-07-15 16:49 UTCCISA KEV update
  23. 2026-07-15 15:20 UTCGHSA enrichment
  24. 2026-07-15 15:04 UTCCISA KEV update
  25. 2026-07-15 11:13 UTCGHSA enrichment
  26. 2026-07-15 07:06 UTCGHSA enrichment
  27. 2026-07-15 02:59 UTCGHSA enrichment
  28. 2026-07-14 22:52 UTCGHSA enrichment
  29. 2026-07-14 18:45 UTCGHSA enrichment
  30. 2026-07-14 18:05 UTCCISA KEV update
  31. 2026-07-14 14:38 UTCGHSA enrichment
  32. 2026-07-14 10:31 UTCGHSA enrichment
  33. 2026-07-14 06:24 UTCGHSA enrichment
  34. 2026-07-14 02:16 UTCGHSA enrichment
  35. 2026-07-13 22:09 UTCGHSA enrichment
  36. 2026-07-13 18:01 UTCGHSA enrichment
  37. 2026-07-13 17:07 UTCCISA KEV update
  38. 2026-07-13 13:54 UTCGHSA enrichment
  39. 2026-07-13 09:47 UTCGHSA enrichment
  40. 2026-07-13 05:39 UTCGHSA enrichment
  41. 2026-07-13 01:32 UTCGHSA enrichment
  42. 2026-07-12 21:25 UTCGHSA enrichment
  43. 2026-07-12 17:18 UTCGHSA enrichment
  44. 2026-07-12 13:11 UTCGHSA enrichment
  45. 2026-07-12 09:04 UTCGHSA enrichment
  46. 2026-07-12 05:46 UTCEPSS rescore
  47. 2026-07-12 04:57 UTCGHSA enrichment
  48. 2026-07-12 00:50 UTCGHSA enrichment
  49. 2026-07-11 20:43 UTCGHSA enrichment
  50. 2026-07-11 16:36 UTCGHSA enrichment
  51. 2026-07-11 12:29 UTCGHSA enrichment
  52. 2026-07-11 08:22 UTCGHSA enrichment
  53. 2026-07-11 04:15 UTCGHSA enrichment
  54. 2026-07-11 00:07 UTCGHSA enrichment
  55. 2026-07-10 19:59 UTCGHSA enrichment
  56. 2026-07-10 17:52 UTCCISA KEV update
  57. 2026-07-10 15:52 UTCGHSA enrichment
  58. 2026-07-10 11:45 UTCGHSA enrichment
  59. 2026-07-10 07:38 UTCGHSA enrichment
  60. 2026-07-10 03:31 UTCGHSA enrichment
  61. 2026-07-09 23:23 UTCGHSA enrichment
  62. 2026-07-09 19:16 UTCGHSA enrichment
  63. 2026-07-09 15:09 UTCGHSA enrichment
  64. 2026-07-09 11:02 UTCGHSA enrichment
  65. 2026-07-09 06:55 UTCGHSA enrichment
  66. 2026-07-09 02:48 UTCGHSA enrichment
  67. 2026-07-08 22:41 UTCGHSA enrichment
  68. 2026-07-08 18:34 UTCGHSA enrichment
  69. 2026-07-08 14:26 UTCGHSA enrichment
  70. 2026-07-08 10:17 UTCGHSA enrichment
  71. 2026-07-08 06:10 UTCGHSA enrichment
  72. 2026-07-08 02:02 UTCGHSA enrichment
  73. 2026-07-07 21:55 UTCGHSA enrichment
  74. 2026-07-07 19:01 UTCCISA KEV update
  75. 2026-07-07 17:48 UTCGHSA enrichment

Publicly available exploits

(10 references)

Working exploit code is in the public domain (9 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCndr-repo/CVE-2025-5777
    First seen Aug 20, 2025

    Exploit for CVE-2025-5777: Citrix NetScaler Memory Disclosure (CitrixBleed 2)

    Open source ↗
  • Exploit-DBEDB-52401
    First seen Aug 11, 2025

    Citrix NetScaler ADC/Gateway 14.1 - Memory Disclosure

    Open source ↗
  • GitHub PoCsoltanali0/CVE-2025-5777-Exploit
    First seen Aug 7, 2025
    Open source ↗
  • GitHub PoCShivshantp/CVE-2025-5777-TrendMicro-ApexCentral-RCE
    First seen Jul 23, 2025

    PoC for CVE-2025-5777 – Auth Bypass and RCE in Trend Micro Apex Central

    Open source ↗
  • GitHub PoCcyberleelawat/ExploitVeer
    First seen Jul 15, 2025

    An advanced, powerful, and easy-to-use tool designed to detect and exploit CVE-2025-5777 (CitrixBleed 2). This script not only identifies the vulnerability but also helps in demonstrating its impact by parsing human-readable information from the memory leak.

    Open source ↗
  • GitHub PoCbughuntar/CVE-2025-5777
    First seen Jul 10, 2025

    CVE-2025-5777 Citrix NetScaler Memory Leak Exploit (CitrixBleed 2)

    Open source ↗
  • GitHub PoCwin3zz/CVE-2025-5777
    First seen Jul 8, 2025

    CVE-2025-5777 (CitrixBleed 2) - Critical memory leak vulnerability affecting Citrix NetScaler ADC and Gateway devices

    Open source ↗
  • GitHub PoCChocapikk/CVE-2025-5777
    First seen Jul 8, 2025

    CitrixBleed 2 (CVE-2025-5777)

    Open source ↗
  • GitHub PoCorange0Mint/CitrixBleed-2-CVE-2025-5777
    First seen Jul 6, 2025

    CitrixBleed-2 Checker & Poc automatic exploit and check token.

    Open source ↗
  • GitHub PoCnocerainfosec/cve-2025-5777
    First seen Jul 5, 2025

    Memory disclosure vulnerability in Citrix NetScaler ADC and Gateway when configured as a Gateway (VPN virtual server, ICA proxy, CVPN, RDP Proxy).

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-5777?
CVE-2025-5777 is a high vulnerability published on June 17, 2025. Insufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
When was CVE-2025-5777 disclosed?
CVE-2025-5777 was first published in the National Vulnerability Database on June 17, 2025, with the most recent update on October 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-5777 actively exploited?
Yes. CISA added CVE-2025-5777 to the Known Exploited Vulnerabilities catalog on July 10, 2025, affecting Citrix NetScaler ADC and Gateway. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-5777?
CVE-2025-5777 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-5777?
CVE-2025-5777 affects Citrix NetScaler ADC and Gateway. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-5777?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-5777, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2025-5777

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