CVE-2026-887768.8High
CVE-2026-88776: Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Citrix NetScaler · ADC
Vendor fix available · Affected: Citrix NetScaler ADC · Exploitation: public proof of concept (unverified)
ExploitationProof of concept public
Not in CISA KEV as of catalogue 2026.11.10 (10 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public2 public GitHub repositories (unverified), listed by PoC-in-GitHub9 Oct
- Not established: not seen
0.8%probability of exploitation in the next 30 days
57th percentile
050100
Higher than 57% of scored CVEs
8.8HighCVSS 4.0
LowMediumHighCrit.
DescriptionNVD
Memory overflow vulnerability 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 leading to unpredictable or erroneous behavior or Denial of Service
What changed
- PoC-in-GitHub lists 2 public GitHub repositories (unverified) PoC-in-GitHub
Coverage2 articles · 2 outlets
One row per outlet, in order of first report. First in our coverage: Infosecurity, 28 Sep.
Quiet for 6 weekslast report 28 Sep2 articles2 outlets
- Mon 28 Sep, 08:35 UTC. Infosecurity, first report. Citrix NetScaler Zero Days Exploited in Attacks, Patch Now.
- Mon 28 Sep, 12:07 UTC. Rapid7, its first report on the story. Citrix NetScaler Zero Days Expose Appliances to Active RCE Attacks.
- First report
- Article
- Running total
Show as tableHide table
| Published (UTC) | Outlet | Headline |
|---|---|---|
| 28 Sep 08:35 | Infosecurity | Citrix NetScaler Zero Days Exploited in Attacks, Patch Now |
| 28 Sep 12:07 | Rapid7 | Citrix NetScaler Zero Days Expose Appliances to Active RCE Attacks |
- Citrix NetScaler Zero Days Expose Appliances to Active RCE AttacksRapid7 · mentions it in passing
- Citrix NetScaler Zero Days Exploited in Attacks, Patch NowInfosecurity · first in our coverage · mentions it in passing
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