CVE-2020-8299

lowpriority · track · 26EPSS 0.004 · 35 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.42% (35th) EPSS

CVSS 3.3 · low

Is it mine?

12 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-24

Citrix ADC and Citrix/NetScaler Gateway 13.0 before 13.0-76.29, 12.1-61.18, 11.1-65.20, Citrix ADC 12.1-FIPS before 12.1-55.238, and Citrix SD-WAN WANOP Edition before 11.4.0, 11.3.2, 11.3.1a, 11.2.3a, 11.1.2c, 10.2.9a suffers from uncontrolled resource consumption by way of a network-based denial-of-service from within the same Layer 2 network segment. Note that the attacker must be in the same Layer 2 network segment as the vulnerable appliance.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.3–6.5

v2.03.3lowAV:A/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 6.5 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimary

affected products (12)

Products and version ranges known to be affected.

n/a Citrix ADC, Citrix Gateway, Citrix SD-WAN WANOP Edition≤ Fixed in Citrix ADC and Citrix Gateway 13.0-76.29 and later releases of 13.0, Citrix ADC and Citrix Gateway 12.1-61.18 and later releases of 12.1, Citrix ADC and NetScaler Gateway 11.1-65.20 and later releases of 11.1, Citrix ADC 12.1-FIPS 12.1-55.238 and later releases of 12.1-FIPS, Citrix SD-WAN WANOP 11.4.0 and later releases of 11.4, Citrix SD-WAN WANOP 11.3.2 and later releases of 11.3, Citrix SD-WAN WANOP 11.3.1a and later releases of 11.3, Citrix SD-WAN WANOP 11.2.3a and later releases of 11.2, Citrix SD-WAN WANOP 11.1.2c and later releases of 11.1, Citrix SD-WAN WANOP 10.2.9a and later releases of 10.2enisa_euvdEU
citrix application delivery controller firmware11.1 → 11.1-65.20nvdUScpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
citrix application delivery controller firmware12.1 → 12.1-55.238nvdUScpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
citrix application delivery controller firmware12.1 → 12.1-61.18nvdUScpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
citrix application delivery controller firmware13.0 → 13.0-76.29nvdUScpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:*
citrix gateway12.1 → 12.1-61.18nvdUScpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:*
citrix gateway13.0 → 13.0-76.29nvdUScpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:*
citrix netscaler gateway11.1 → 11.1-65.20nvdUScpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*
citrix sd-wan wanop10.2 → 10.2.9anvdUScpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*
citrix sd-wan wanop11.1 → 11.1.2cnvdUScpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*
citrix sd-wan wanop11.2 → 11.2.3anvdUScpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*
citrix sd-wan wanop11.3 → 11.3.2nvdUScpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-06-16modified 2026-06-17

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references (4)

External citations — patches, advisories, analysis.

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