- Description
- Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.
- Source
- 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
- NVD status
- Received
CVSS 4.0
- Type
- Secondary
- Base score
- 8.7
- Impact score
- -
- Exploitability score
- -
- Vector string
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- HIGH
Data from CISA
- Vulnerability name
- Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
- Exploit added on
- Oct 4, 2026
- Exploit action due
- Oct 7, 2026
- Required action
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
- CWE-119
Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.
- Hype score
8
🚨 Citrix discloses high-severity NetScaler flaw tracked as CVE-2026-88779 ⠀ CVE-2026-88779 is a memory overflow vulnerability affecting certain customer-managed NetScaler ADC and NetScaler Gateway deployments. Successful exploitation can cause a denial-of-service condition.
@DarkWebInformer
4 Oct 2026
2047 Impressions
0 Retweets
3 Likes
2 Bookmarks
0 Replies
0 Quotes
🚨 CVE-2026-88779 — HIGH — actively exploited per CISA KEV Citrix NetScaler CVSS 8.7 | EPSS 0% #Citrix #CVE https://t.co/wr9pfSFciA
@threatpodium
4 Oct 2026
0 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Citrix NetScaler CVE-2026-88779 Exploited in the Wild - https://t.co/lCiEkVRMZl
@moton
4 Oct 2026
25 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🔴 Actively exploited: Citrix NetScaler ADC and Gateway: CISA confirms active exploitation of CVE-2026-88779 CVE-2026-88779 A high-severity flaw (CVSS 8.7) in Citrix NetScaler ADC and NetScaler Gateway is being actively exploited.… #CVE #Citrix #infosec https://t.co/y1XoiHW
@Orbitaley
4 Oct 2026
0 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
NØØT Security Alerts Classification: High CVE: CVE-2026-88779 Product: See CISA advisory Summary: The advisory involves CVE-2026-88779. Priority should be given to identifying exposed systems and validating whether they are actually affected. Evidence: active exploitation;
@Python_s_
4 Oct 2026
39 Impressions
0 Retweets
2 Likes
1 Bookmark
0 Replies
0 Quotes
🔴 NetScaler ADC and NetScaler Gateway, Memory Overflow (Denial of Service), #CVE-2026-88779, HIGH -DC-Oct2026-2716 https://t.co/Jn4friAzZv
@dailycve
4 Oct 2026
21 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🚨 CRITICAL: CVE-2026-88779 in Citrix NetScaler ADC/Gateway - Memory buffer vulnerability enables DoS attacks. CISA KEV listed. Patch immediately. #CVE #PatchNow #ThreatIntel https://t.co/RYz5SLLXzq
@DFIR_Lab
4 Oct 2026
79 Impressions
0 Retweets
1 Like
0 Bookmarks
0 Replies
0 Quotes
‼️#Citrix: aggiornamenti di sicurezza sanano la CVE-2026-88779 per la quale sono stati osservati tentativi di #Exploitation Rischio: 🔴 Tipologia: 🔸 Denial of Service 🔗 https://t.co/oq6nLFS7rx 🔄️ Aggiornamenti disponibili 🔄️ https://t.co/2rxsDXduW0
@csirt_it
4 Oct 2026
262 Impressions
1 Retweet
2 Likes
0 Bookmarks
0 Replies
0 Quotes
Citrix NetScaler admins: patch again. CVE-2026-88779 is a new CVSS 8.7 memory overflow affecting customer-managed NetScaler ADC / Gateway deployments using SAML with Gateway or AAA. Citrix says targeted attacks have already been observed against unmitigated systems. Affected:
@cr3ghost
4 Oct 2026
519 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
⚠️ Mise à jour Citrix NetScaler : le problème SAML signalé hier est désormais CVE-2026-88779 (CVSS 8,7). Citrix confirme un DoS et publie les correctifs 14.1-73.41 / 13.1-64.28. À déployer rapidement. #Cyber #Citrix
@TwitGri
4 Oct 2026
122 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Cloud Software Group published a NetScaler security bulletin for CVE-2026-88779 on October 3, 2026 Pacific time, according to the bulletin changelog, covering customer-managed Citrix NetScaler ADC and NetScaler Gateway. The issue is a memory-overflow vulnerability that can lead
@2logics
4 Oct 2026
168 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Citrix published CTX697174 on 3 October PST for CVE-2026-88779. This is the bulletin the 2 October SAML note said was planned, not a rewrite of CTX697096. It is a memory overflow, CWE-119, CVSS v4.0 8.7, leading to denial of service. The precondition is NetScaler ADC or Gateway
@Breachrr
4 Oct 2026
4 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🚨 EXPLOITED IN THE WILD: Citrix NetScaler CVE-2026-88779 is being targeted in attacks against SAML-configured deployments. The high-severity flaw (CVSS 8.7) is a memory-overflow vulnerability that can cause denial of service. ⚠️ Affected when NetScaler ADC/Gateway is
@ThreatWire_
4 Oct 2026
218 Impressions
1 Retweet
6 Likes
0 Bookmarks
0 Replies
0 Quotes
Citrix NetScaler CVE-2026-88779 is exploited in the wild against NetScaler SAML authentication setups. Upgrade to 14.1-73.41 now. #Citrix #NetScaler #CVE202688779 #SAML #ActivelyExploited #DoS #Vulnerability https://t.co/pOgTFFvqH4
@Daily_CyberSec
4 Oct 2026
581 Impressions
0 Retweets
7 Likes
1 Bookmark
0 Replies
0 Quotes