{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-88779", "tracking": { "current_release_date": "2026-10-04T22:05:38.447206Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-88779", "initial_release_date": "2026-10-04T03:38:31.588027Z", "revision_history": [ { "date": "2026-10-04T03:38:31.588027Z", "number": "1", "summary": "CVSS created.| Products created (6).| References created (1).| Description created for source.| Unknown change." }, { "date": "2026-10-04T03:38:39.199289Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-10-04T04:25:07.297441Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1)." }, { "date": "2026-10-04T04:25:13.618989Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-10-04T04:38:57.633465Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-10-04T06:40:10.945965Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (7).| Product Remediations created (7).| Products updated (7).| Product Remediations removed (7).| CWES updated (1)." }, { "date": "2026-10-04T06:40:17.464835Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-10-04T07:34:52.119562Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-10-04T11:19:34.179492Z", "number": "9", "summary": "Source created.| CVE status created. (valid)" }, { "date": "2026-10-04T12:47:45.554932Z", "number": "10", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (2).| Exploits created (1).| References created (1).| Exploitable created." }, { "date": "2026-10-04T12:47:48.190765Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-10-04T14:29:48.952799Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| News created (1)." }, { "date": "2026-10-04T14:29:55.544641Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-10-04T15:15:05.519121Z", "number": "14", "summary": "EPSS created.| Unknown change." }, { "date": "2026-10-04T16:25:07.285573Z", "number": "15", "summary": "References created (1).| CWES updated (1)." }, { "date": "2026-10-04T16:25:16.614395Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-10-04T16:38:32.465862Z", "number": "17", "summary": "CWES created (1).| Unknown change.| References created (1)." }, { "date": "2026-10-04T16:38:39.596785Z", "number": "18", "summary": "NCSC Score updated." }, { "date": "2026-10-04T20:07:43.004519Z", "number": "19", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| Products connected (1).| Exploits created (1).| References created (3).| CWES updated (1)." }, { "date": "2026-10-04T20:07:45.568877Z", "number": "20", "summary": "NCSC Score updated." }, { "date": "2026-10-04T20:38:30.075595Z", "number": "21", "summary": "Unknown change.| References created (1)." }, { "date": "2026-10-04T21:24:59.396099Z", "number": "22", "summary": "References created (1)." }, { "date": "2026-10-04T22:05:31.360762Z", "number": "23", "summary": "Source created.| CVE status created. (valid)| News created (1)." }, { "date": "2026-10-04T22:05:36.444890Z", "number": "24", "summary": "NCSC Score updated." } ], "status": "interim", "version": "24" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:patch/<13.1-37.282", "product": { "name": "vers:patch/<13.1-37.282", "product_id": "CSAFPID-9518300" } }, { "category": "product_version_range", "name": "vers:patch/<13.1-64.28", "product": { "name": "vers:patch/<13.1-64.28", "product_id": "CSAFPID-9518301" } }, { "category": "product_version_range", "name": "vers:patch/<14.1-73.41", "product": { "name": "vers:patch/<14.1-73.41", "product_id": "CSAFPID-9518302" } }, { "category": "product_version_range", "name": "vers:patch/<14.1-73.41fips", "product": { "name": "vers:patch/<14.1-73.41fips", "product_id": "CSAFPID-9518303" } }, { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-8929611" } } ], "category": "product_name", "name": "ADC" }, { "branches": [ { "category": "product_version_range", "name": "vers:patch/<13.1-64.28", "product": { "name": "vers:patch/<13.1-64.28", "product_id": "CSAFPID-9518304" } }, { "category": "product_version_range", "name": "vers:patch/<14.1-73.41", "product": { "name": "vers:patch/<14.1-73.41", "product_id": "CSAFPID-9518305" } }, { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-8929610" } } ], "category": "product_name", "name": "Gateway" } ], "category": "vendor", "name": "NetScaler" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-2640517" } } ], "category": "product_name", "name": "NetScaler" } ], "category": "vendor", "name": "Citrix" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=13.1-64.28", "product": { "name": "vers:unknown/>=13.1-64.28", "product_id": "CSAFPID-9518589" } }, { "category": "product_version_range", "name": "vers:unknown/>=14.1-73.41", "product": { "name": "vers:unknown/>=14.1-73.41", "product_id": "CSAFPID-9518587" } } ], "category": "product_name", "name": "NetScaler ADC" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=13.1-37.282", "product": { "name": "vers:unknown/>=13.1-37.282", "product_id": "CSAFPID-9518592" } } ], "category": "product_name", "name": "NetScaler ADC 13.1-FIPS" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=13.1-37.282", "product": { "name": "vers:unknown/>=13.1-37.282", "product_id": "CSAFPID-9518593" } } ], "category": "product_name", "name": "NetScaler ADC 13.1-NDcPP" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=14.1-73.41", "product": { "name": "vers:unknown/>=14.1-73.41", "product_id": "CSAFPID-9518591" } } ], "category": "product_name", "name": "NetScaler ADC 14.1-FIPS" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=13.1-64.28", "product": { "name": "vers:unknown/>=13.1-64.28", "product_id": "CSAFPID-9518590" } }, { "category": "product_version_range", "name": "vers:unknown/>=14.1-73.41", "product": { "name": "vers:unknown/>=14.1-73.41", "product_id": "CSAFPID-9518588" } } ], "category": "product_name", "name": "NetScaler Gateway" } ], "category": "vendor", "name": "Cloud Software Group" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-88779", "notes": [ { "category": "description", "text": "Memory overflow vulnerability leading to Denial of Service", "title": "citrix - https://api-csm.citrix.com/es/nau/articles/get_article_details/enduser?articleNumber=CTX697174" }, { "category": "description", "text": "Vulnerability in NetScaler ADC and NetScaler Gateway.\n\nThis issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.", "title": "euvdkev - https://euvdservices.enisa.europa.eu/api/search?fromScore=0&toScore=10&fromEpss=0&toEpss=100&exploited=true&page=0&size=50" }, { "category": "description", "text": "Vulnerability in NetScaler ADC and NetScaler Gateway.\n\nThis issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-88779" }, { "category": "description", "text": "Vulnerability in NetScaler ADC and NetScaler Gateway.\n\nThis issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-88779" }, { "category": "description", "text": "Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service.\nApply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.", "title": "cisagov - https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json" }, { "category": "other", "text": "0.00276", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "title": "CVSSV4" }, { "category": "other", "text": "8.7", "title": "CVSSV4 base score" }, { "category": "other", "text": "5.4", "title": "NCSC Score" }, { "category": "other", "text": "Is related to (a version of) an uncommon product, Is related to an uncommon cwe source, Is related to an uncommon cvss source, There is news data available from source Bleepingcomputer", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is cwe data available from source Nvd, The value of the most recent CVSS (V3) score", "title": "NCSC Score top decreasing factors" } ], "product_status": { "fixed": [ "CSAFPID-9518587", "CSAFPID-9518588", "CSAFPID-9518589", "CSAFPID-9518590", "CSAFPID-9518591", "CSAFPID-9518592", "CSAFPID-9518593" ], "known_affected": [ "CSAFPID-9518300", "CSAFPID-9518301", "CSAFPID-9518302", "CSAFPID-9518303", "CSAFPID-9518304", "CSAFPID-9518305", "CSAFPID-8929610", "CSAFPID-8929611", "CSAFPID-2640517" ] }, "references": [ { "category": "external", "summary": "Source - citrix", "url": "https://api-csm.citrix.com/es/nau/articles/get_article_details/enduser?articleNumber=CTX697174" }, { "category": "external", "summary": "Source - euvdkev", "url": "https://euvdservices.enisa.europa.eu/api/search?fromScore=0&toScore=10&fromEpss=0&toEpss=100&exploited=true&page=0&size=50" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88779" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-88779" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-88779" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0399" }, { "category": "external", "summary": "Source - securitynl", "url": "https://www.security.nl/posting/955844/Citrix+waarschuwt+voor+actief+misbruik+van+nieuw+beveiligingslek?channel=rss" }, { "category": "external", "summary": "Source - cisagov", "url": "https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json" }, { "category": "external", "summary": "Source - bleepingcomputer", "url": "https://www.bleepingcomputer.com/news/security/citrix-patches-netscaler-saml-zero-day-exploited-in-attacks/" }, { "category": "external", "summary": "News - securitynl", "url": "https://www.security.nl/posting/955844/Citrix+waarschuwt+voor+actief+misbruik+van+nieuw+beveiligingslek?channel=rss" }, { "category": "external", "summary": "News - bleepingcomputer", "url": "https://www.bleepingcomputer.com/news/security/citrix-patches-netscaler-saml-zero-day-exploited-in-attacks/" }, { "category": "external", "summary": "Reference - cisagov; cveprojectv5; euvdkev; nvd", "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697174" }, { "category": "external", "summary": "Reference - cisagov; cveprojectv5; nvd", "url": "https://community.citrix.com/techzone-blogs/110_security-updates/understanding-and-addressing-cve-2026-88779-in-citrix-netscaler-adc-and-citrix-netscaler-gateway/" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-88779" }, { "category": "external", "summary": "Reference - cisagov", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88779" } ], "threats": [ { "category": "exploit_status", "details": "exploited" } ], "title": "CVE-2026-88779" } ] }