VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published CVSS 8.2 highEPSS 1.1% probability of exploitation in 30 days
Cloud Software Group

CVE-2023-4967: Denial of service

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .

VulnCheck KEV lists it since . It cites 3 public reports, the first from .

How likely is exploitation in the next 30 days?
1.1%

EPSS score, percentile 65.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
8.2 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

  • from 14.1 to before 8.50
  • from 13.1 to before 49.15
  • from 13.0 to before 92.19
  • from 13.1-FIPS to before 37.164
  • from 12.1-FIPS to before 55.300
  • from 12.1-NDcPP to before 55.300

and 3 more in the table below

Versions by product

Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

Denial of service

Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server

Source: CVE List, as of . About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (2 products)
Cloud Software Group NetScaler ADC
StatusVersions
Affectedfrom 14.1 to before 8.50
Affectedfrom 13.1 to before 49.15
Affectedfrom 13.0 to before 92.19
Affectedfrom 13.1-FIPS to before 37.164
Affectedfrom 12.1-FIPS to before 55.300
Affectedfrom 12.1-NDcPP to before 55.300

Versions not listed are: unaffected.

Cloud Software Group NetScaler Gateway
StatusVersions
Affectedfrom 14.1 to before 8.50
Affectedfrom 13.1 to before 49.15
Affectedfrom 13.0 to before 92.19

Versions not listed are: unaffected.

Source: CVE List, as of . About the data.

Weakness

CWE-119
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

References

1