Vulnerability in Citrix Netscaler

CVE-2015-2841

Citrix NetScaler AppFirewall, as used in NetScaler 10.5, allows remote attackers to bypass intended firewall restrictions via a crafted Content-Type header, as demonstrated by the application/octet-stream and text/xml Content-Types.

Published 2015-04-03 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.055 (92.8th percentile), scored 2026-10-23.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.055 · newest: 0.055 · change: 0.000

Affected products

Citrix Netscaler — versions 10.5

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

securitytracker.com/id/1031928 (vdb-entry)
www.exploit-db.com/exploits/36369/ (exploit)
seclists.org/fulldisclosure/2015/Mar/95 (mailing-list, Exploit)