CVE-2026-88772

KEV の登録内容

vulnerabilityName

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

vendorProject

Citrix

product

NetScaler

dateAdded

2026-09-27

shortDescription

Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for remote code execution or denial of service

requiredAction

Apply 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.

dueDate

2026-09-30

knownRansomwareCampaignUse

Unknown

forensicTriage

Yes

notes

Running the provided IOCs in the NetScaler console may help identify indicators of exploitation. Customers must conduct forensic triage as directed by BOD 26‑04 and follow Citrix’s published guidance for mitigations. For more information, please see: https://community.citrix.com/techzone-blogs/110_security-updates/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve-2026-88771-through-cve-2026-88778 ; https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096 ; https://support.citrix.com/external/article/CTX694799/steps-to-take-if-netscaler-adc-is-suspec.html ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-88772

cwes

CWE-119

初めて観測: 2026-10-02T21:06:48Z / 最後に観測: 2026-10-02T21:06:48Z(last_observed_at。値の変更を最後に確認した時刻)

観測した変更

取り込み開始以降、KEV の値の変更は観測していません。

JPCERT/CC 注意喚起

国内状況のラベルは語彙による機械的な分類です。記述の内容は引用(JPCERT/CC の文)で確かめてください。

出典: JPCERT/CC 注意喚起。引用の範囲(タイトル・URL・日付・国内状況の短い引用)に留め、本文は転載していません。 詳しくは出典表記とライセンス。

CVE レコード(CVE Program)

state

PUBLISHED

datePublished

2026-09-27T16:09:56.033Z

dateUpdated

2026-09-28T03:55:42.777Z

CNA の affected

• Citrix NetScaler ADC (0 〜 <14.1-73.37; 0 〜 <13.1-64.23; 0 〜 <14.1-73.37 FIPS; 0 〜 <13.1.37.279 FIPS and NDcPP)
• Citrix NetScaler Gateway (0 〜 <14.1-73.37; 0 〜 <13.1-64.23)

KEV と CNA で製品の表記が異なる。KEV の vendorProject・product と CNA の affected が、大文字小文字を無視した包含で一致しなかった(機械的な照合で、どちらが正しいかは判定していない)。

外部のページ

• cve.org の CVE-2026-88772
• NVD の CVE-2026-88772