CVE-2026-88778

HIGHNVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-27. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.

This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23.

CVSS v3
7.5
EG Score
7.5HIGHhigh confidence
EG Risk
49
EG Risk 49/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
29th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 27, 2026

Last Modified

September 29, 2026

Advisory Details (1)

Auto-updated Sep 27, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-88778(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 29× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-05 05:10 UTCEG score recompute
  2. 2026-10-05 05:10 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 17:13 UTCGHSA enrichment
  5. 2026-10-04 05:16 UTCGHSA enrichment
  6. 2026-10-03 17:19 UTCEG score recompute
  7. 2026-10-03 17:19 UTCGHSA enrichment
  8. 2026-10-03 05:23 UTCEG score recompute
  9. 2026-10-03 05:23 UTCGHSA enrichment
  10. 2026-10-02 17:27 UTCGHSA enrichment
  11. 2026-10-02 05:26 UTCEG score recompute
  12. 2026-10-02 05:25 UTCGHSA enrichment
  13. 2026-10-01 19:51 UTCEPSS rescore
  14. 2026-10-01 17:25 UTCGHSA enrichment
  15. 2026-10-01 05:28 UTCGHSA enrichment
  16. 2026-09-30 17:31 UTCEG score recompute
  17. 2026-09-30 17:31 UTCGHSA enrichment
  18. 2026-09-30 15:04 UTCEPSS rescore
  19. 2026-09-30 05:34 UTCGHSA enrichment
  20. 2026-09-29 17:35 UTCGHSA enrichment
  21. 2026-09-29 16:45 UTCEG score recompute
  22. 2026-09-29 16:45 UTCGHSA enrichment
  23. 2026-09-29 06:31 UTCEG score recompute
  24. 2026-09-29 06:31 UTCGHSA enrichment
  25. 2026-09-28 18:35 UTCEG score recompute▼ 1.30
Show 9 more
  1. 2026-09-28 18:35 UTCGHSA enrichment
  2. 2026-09-28 18:35 UTCNVD updateCVSS v3 → 7.5
  3. 2026-09-28 13:52 UTCEPSS rescore
  4. 2026-09-28 13:49 UTCGHSA enrichment
  5. 2026-09-28 09:11 UTCGHSA enrichment
  6. 2026-09-28 05:20 UTCGHSA enrichment
  7. 2026-09-27 17:24 UTCEG score recompute
  8. 2026-09-27 16:49 UTCEG score recompute
  9. 2026-09-27 16:48 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-88778?
CVE-2026-88778 is a high vulnerability published on September 27, 2026. Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23.
When was CVE-2026-88778 disclosed?
CVE-2026-88778 was first published on September 27, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-88778 actively exploited?
CVE-2026-88778 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-88778?
CVE-2026-88778 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-88778?
No fix for CVE-2026-88778 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-88778 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-88778

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