Multiple vulnerabilities in Citrix products (20 August 2026)

unknownCVE-2026-19489 CVE-2026-19490

Multiple vulnerabilities have been discovered in Citrix products. They allow an attacker to cause remote denial of service, security policy bypass and an unspecified security issue by the editor.

CSIRTS triage

vendor: Citrix Denial of service Authentication bypassOther

What: Multiple vulnerabilities in Citrix products enable remote denial of service, security policy bypass, and an unspecified issue.
Who is affected: Citrix product customers are affected; specific products and versions not specified.
Urgency: Low to moderate urgency pending clarification of the unspecified security issue and affected product scope.
Action: Contact Citrix support to identify affected products and versions, then apply relevant patches.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-08-20
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1059/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-194890.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-194900.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-19489	coverage & exploitation status	NVD · CVE.org
CVE-2026-19490	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Citrix products

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownMultiple Vulnerabilities in Citrix Products (July 15, 2026)cert-fr-avis · 2026-07-15
unknownCitrix Products Multiple Vulnerabilitieshkcert · 2026-07-03
unknownMultiple vulnerabilities in Citrix products (July 1, 2026)cert-fr-avis · 2026-07-01
criticalexploitedCVE-2017-6316: Citrix Multiple Products Remote Code Execution Vulnerabilitycisa-kev · 2022-03-25