AEGLIX vulnerability intelligence
CVE-2023-6549
HIGH · CVSS 8.2 · Analyzed
Published: 2024-01-17 · Updated: 2026-06-17 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T14:19:31.683944+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and Out-Of-Bounds Memory Read
Patch review priority
Known exploitation: prioritize review
- CISA KEV lists real-world exploitation.
FIRST EPSS: 57.63% · percentile 99.1 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 8.2 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- Weaknesses
- CWE-119
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Citrix · NetScaler ADC and NetScaler Gateway
- Added to catalog
- 2024-01-17
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA remediation due date
- 2024-02-07
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
From (inclusive): 12.1
Before (exclusive): 12.1-55.302
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*
From (inclusive): 12.1
Before (exclusive): 12.1-55.302
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
From (inclusive): 13.0
Before (exclusive): 13.0-92.21
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*
From (inclusive): 13.1
Before (exclusive): 13.1-37.176
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
From (inclusive): 13.1
Before (exclusive): 13.1-51.15
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*
From (inclusive): 14.1
Before (exclusive): 14.1-12.35
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
From (inclusive): 13.0
Before (exclusive): 13.0-92.21
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
From (inclusive): 13.1
Before (exclusive): 13.1-51.15
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
From (inclusive): 14.1
Before (exclusive): 14.1-12.35
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549
Vendor Advisory
- https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549
Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549
US Government Resource