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CVE-2021-22927
A session fixation vulnerability exists in Citrix ADC and Citrix Gateway 13.0-82.45 when configured SAML service provider that could allow…
High8.1EPSS 0.84%
- Published
- Updated
- Reserved
- Assigned by
- hackerone
Description
A session fixation vulnerability exists in Citrix ADC and Citrix Gateway 13.0-82.45 when configured SAML service provider that could allow an attacker to hijack a session.
Timeline
ID reserved
By hackerone
- 7 months later
· 7 months later
Published
- 3 years later
· 3 years 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.84% · top 42% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Weakness
Affected products
Citrix ADC, Citrix Gateway
- affected Citrix ADC and Citrix Gateway 13.0-82.45 and later releases of 13.0
- affected Citrix ADC and Citrix Gateway 12.1-62.27 and later releases of 12.1
- affected Citrix ADC and NetScaler Gateway 11.1-65.22 and later releases of 11.1
- affected Citrix ADC 12.1-FIPS 12.1-55.247 and later releases of 12.1-FIPS
References (1)
- https://support.citrix.com/article/CTX319135 (opens in a new tab)x_refsource_MISCx_transferred
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)
- FIRST EPSS (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://trackcve.app/cve/CVE-2021-22927)Record last updated .