NVD / CVE Program· CNA hackerone

CVE-2020-8197: Privilege escalation vulnerability on Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-

Noroxi assessment

Priority: Monitor (action score 36/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 1.8% (FIRST EPSS); higher than 78.7% of all records.
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Privilege escalation vulnerability on Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 allows a low privileged user with management access to execute arbitrary commands.

HighCVSS 8.8 · v3.1—No exploit No fix recorded

Published: Jul 10, 2020
Updated: Jun 16, 2026
EPSS: 1.8% · 78th percentile
CWE: —

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 1.8%

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
citrix	application delivery controller firmware	cpe:2.3:o:citrix:application_delivery_controller_firmware
citrix	application delivery controller	cpe:2.3:h:citrix:application_delivery_controller
citrix	netscaler gateway firmware	cpe:2.3:o:citrix:netscaler_gateway_firmware
citrix	netscaler gateway	cpe:2.3:h:citrix:netscaler_gateway
citrix	gateway firmware	cpe:2.3:o:citrix:gateway_firmware
citrix	gateway	cpe:2.3:h:citrix:gateway

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

citrix application delivery controller firmware10.5 and later · before 10.5-70.18
citrix application delivery controller firmware11.1 and later · before 11.1-64.14
citrix application delivery controller firmware12.0 and later · before 12.0-63.21
citrix application delivery controller firmware12.1 and later · before 12.1-57.18
citrix application delivery controller firmware13.0 and later · before 13.0-58.30
citrix gateway firmware13.0 and later · before 13.0-58.30
citrix netscaler gateway firmware11.1 and later · before 11.1-64.14
citrix netscaler gateway firmware12.0 and later · before 12.0-63.21
citrix netscaler gateway firmware12.1 and later · before 12.1-57.18
citrix netscaler gateway firmware10.5 and later · before 10.5-70.18

Versions reported by the vendor

Affected version ranges reported by the assigning authority (hackerone). Independent of NVD's CPE analysis and usually ahead of it.

n/a Citrix ADC, Citrix Gateway
- 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18affected

Same product

citrix: all records

Other highest-scoring records for the same primary product.

CVE-2019-19781An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0.KEV
99Now
CVE-2020-8193Improper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and CKEV
82Now
CVE-2022-27518Unauthenticated remote arbitrary code executionKEV
71This week

Published before and after this one in the same product

← EarlierCVE-2020-8195Jul 10, 2020 · Improper input validation in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 andKEV
66This week
← EarlierCVE-2020-8196Jul 10, 2020 · Improper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and CKEV
55Plan
Later →CVE-2020-8198Jul 10, 2020 · Improper input validation in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and
24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

Cloud Software GroupHackerOne · paid

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-20-510 · Jul 13, 2020(Citrix Güvenlik Güncellemeleri Yayınladı)

All national notices →

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

support.citrix.com/article/CTX276688

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records