CVE-2025-5777: citrix netscaler application delivery control…

csirt@kutim:~/threat-intel/cve/CVE-2025-5777

CVSS 7.5 · High KEV · sudah dieksploitasi Dipakai ransomware EPSS 100,0%

Kerentanan Out-of-bounds Read pada citrix netscaler application delivery controller, citrix netscaler gateway. Skor CVSS 3.1 7.5 (High) menurut NVD. Masuk katalog KEV CISA pada 10 Juli 2025, artinya sudah terbukti dieksploitasi. Tercatat dipakai dalam kampanye ransomware.

Deskripsi (NVD)

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

Rincian

Terbit di NVD: 17 Juni 2025
Terakhir diubah: 8 Oktober 2026
Status NVD: Analyzed
CVSS 3.1: 7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-125: Out-of-bounds Read
CWE-908: Use of Uninitialized Resource
EPSS (30 hari): 100,0% peluang dieksploitasi; lebih tinggi dari 99,9% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama: Citrix NetScaler ADC and Gateway Out-of-Bounds Read Vulnerability
Masuk KEV: 10 Juli 2025
Tenggat CISA: 11 Juli 2025 (untuk instansi federal AS)
Ransomware: Tercatat dipakai dalam kampanye ransomware
Tindakan wajib: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
citrix	netscaler application delivery controller	Versi 12.1 hingga sebelum 12.1-55.328
citrix	netscaler application delivery controller	Versi 13.1 hingga sebelum 13.1-37.235
citrix	netscaler application delivery controller	Versi 13.1 hingga sebelum 13.1-58.32
citrix	netscaler application delivery controller	Versi 14.1 hingga sebelum 14.1-43.56
citrix	netscaler gateway	Versi 13.1 hingga sebelum 13.1-58.32
citrix	netscaler gateway	Versi 14.1 hingga sebelum 14.1-43.56

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX693420 advisory vendor
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-5777 pemerintah AS
https://citrixbleed.com broken link · advisory pihak ketiga
https://horizon3.ai/attack-research/attack-blogs/cve-2025-5777-citrixbleed-2-write-up-maybe/ advisory pihak ketiga
https://labs.watchtowr.com/how-much-more-must-we-bleed-citrix-netscaler-memory-disclosure-citrixbleed-2-cve-20... advisory pihak ketiga
https://www.bleepingcomputer.com/news/security/cisa-tags-citrix-bleed-2-as-exploited-gives-agencies-a-day-to-p... press/media coverage · advisory pihak ketiga
https://www.netscaler.com/blog/news/netscaler-critical-security-updates-for-cve-2025-6543-and-cve-2025-5777/ advisory pihak ketiga
https://doublepulsar.com/citrixbleed-2-exploitation-started-mid-june-how-to-spot-it-f3106392aa71 advisory pihak ketiga
https://reliaquest.com/blog/threat-spotlight-citrix-bleed-2-vulnerability-in-netscaler-adc-gateway-devices/ advisory pihak ketiga
https://www.theregister.com/2025/07/10/cisa_citrixbleed_kev/ press/media coverage

Sumber: NVD · CVE.org · KEV CISA · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 9 Okt 2026, 00:26 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.