CVE-2023-6549 KEV
8.2
HIGH · CVSS 3.1 · EPSS 57.6% (pctl 99)
Patch first
On CISA KEV — known exploited in the wild, due 2024-02-07.
Description
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
Scoring
| CVSS | 8.2 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| EPSS | 57.63% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | yes — remediate by 2024-02-07 |
| Public exploit | none known |
| Published | 2024-01-17 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability |
|---|---|
| Added | 2024-01-17 |
| Due | 2024-02-07 |
| Vendor / product | Citrix / NetScaler ADC and NetScaler Gateway |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| citrix | netscaler application delivery controller |
| citrix | netscaler gateway |
References
- https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549
- https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549
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