CVE-2023-6548Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP,…
- 5.5MediumCVSS base score
- 3.2%Exploitation in 30 daysEPSS · top 12% of all CVEs
- YesKnown exploitedin CISA's KEV since 17 Jan 2024
- YesPublic exploitsa reference or SSVC says so
Description
Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability.
- Added
- 17 Jan 2024
- Fix due (US federal)
- 24 Jan 2024
- Used by ransomware
- Not known
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 17 Jan 2024.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By Citrix
- 42 days later
· 42 days later
Published
Added to CISA KEV
Known exploited in the wild
- 21 months later
· 21 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CitrixCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| NVDNVD · Analyzed | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
Cloud Software Group · NetScaler ADC
- affected 14.1 – < 12.35
- affected 13.1 – < 51.15
- affected 13.0 – < 92.21
- affected 13.1-FIPS – < 37.176
- affected 12.1-FIPS – < 55.302
- affected 12.1-NDcPP – < 55.302
Cloud Software Group · NetScaler Gateway
- affected 14.1 – < 12.35
- affected 13.1 – < 51.15
- affected 13.0 – < 92.21
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-58778 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-6548)Record last updated .