CVE-2026-76466
waiting for further signalsZero needs more public information before it can validate it.GHSA-p2jr-qv63-hjch ↗EUVD-2026-107382 ↗
no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
Cisco TelePresence Video Communication Server (VCS) Expressway X8.11.2; X8.6; X8.11.3; X8.2.2; X8.8.3; X8.11.0; X12.5.2; X8.1.1; X8.9; X12.5.1; X12.5.6; X8.7.3; X12.6.0; X8.11.1; X8.5; X8.9.1; X8.10.2; X8.8.2; X8.5.3; X8.1; X8.9.2; X8.11.4; X12.5.4; X8.8.1; X8.2.1; X8.5.1; X8.6.1; X8.1.2; X8.8; X8.10.0; X12.5.3; X8.10.1; X12.5.7; X8.10.3; X8.7.1; X8.2; X12.5.8; X8.7; X8.5.2; X12.5.9; X12.5.0; X8.10.4; X8.7.2; X12.5.5; X12.6.1; X12.6.2; X12.6.3; X12.6.4; X12.7.0; X12.7.1; X14.0.0; X14.0.1; X14.0.2; X14.0.3; X14.0.4; X14.0.5; X14.0.6; X14.0.7; X14.0.8; X14.2.0; X14.0.9; X14.2.1; X14.2.2; X14.0.11; X14.2.5; X14.0.10; X14.2.6; X14.2.7; X14.3.0; X14.3.1; X14.3.2; X14.3.3; X15.0.0; X14.3.4; X14.3.5; X15.0.1; X15.0.2; X15.0.3; X14.3.6; X15.2.0; X15.2.1; X15.2.2; X15.2.3; X14.3.7; X15.2.4.; X15.2.4; X15.3.0; X15.3.1; X15.3.2; X15.4.0; X15.5.0; X15.5.1; X15.5.2; X15.5.3
CWE-798 Use of Hard-coded Credentials
ETK-2026-2334Zero's internal tracking ID, independent of the CVE number., permanent identifier
45msince last run
14mAI analysisAnalysis: how long the AI spent reversing this signal.
description
Cisco VCS Expressway devices that expose the database service are affected. An attacker with network access and a persistent cookie may execute operating-system commands as root when clustered systems use TLS Verify Mode Enabled and client certificates are not properly validated.
mitigation
Restrict database-service access to trusted cluster peers and block untrusted networks from reaching it. Treat persistent cookies as secrets, invalidate or rotate them using supported procedures, and apply Cisco updates when a fixed release is published.
check
no
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
14m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-21 16:14Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–
outcome
Contextual: an exploit technique exists, but no deterministic check could cover this one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-10-21 16:14Zcve_org: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/CVE-2026-76466
{ "etk_id": "ETK-2026-2334", "cve_id": "CVE-2026-76466", "display_id": "CVE-2026-76466", "ghsa_id": "GHSA-p2jr-qv63-hjch", "euvd_id": "EUVD-2026-107382", "status": "published", "anchor_state": "anchored", "title": "Unauthenticated command execution in Cisco VCS Expressway", "summary": "Cisco VCS Expressway devices that expose the database service are affected. An attacker with network access and a persistent cookie may execute operating-system commands as root when clustered systems use TLS Verify Mode Enabled and client certificates are not properly validated.", "mitigation": "Restrict database-service access to trusted cluster peers and block untrusted networks from reaching it. Treat persistent cookies as secrets, invalidate or rotate them using supported procedures, and apply Cisco updates when a fixed release is published.", "vendor": "Cisco", "product": "Cisco TelePresence Video Communication Server (VCS) Expressway", "affected": [ { "affected_notes": [], "affected_ranges": [ "X8.11.2", "X8.6", "X8.11.3", "X8.2.2", "X8.8.3", "X8.11.0", "X12.5.2", "X8.1.1", "X8.9", "X12.5.1", "X12.5.6", "X8.7.3", "X12.6.0", "X8.11.1", "X8.5", "X8.9.1", "X8.10.2", "X8.8.2", "X8.5.3", "X8.1", "X8.9.2", "X8.11.4", "X12.5.4", "X8.8.1", "X8.2.1", "X8.5.1", "X8.6.1", "X8.1.2", "X8.8", "X8.10.0", "X12.5.3", "X8.10.1", "X12.5.7", "X8.10.3", "X8.7.1", "X8.2", "X12.5.8", "X8.7", "X8.5.2", "X12.5.9", "X12.5.0", "X8.10.4", "X8.7.2", "X12.5.5", "X12.6.1", "X12.6.2", "X12.6.3", "X12.6.4", "X12.7.0", "X12.7.1", "X14.0.0", "X14.0.1", "X14.0.2", "X14.0.3", "X14.0.4", "X14.0.5", "X14.0.6", "X14.0.7", "X14.0.8", "X14.2.0", "X14.0.9", "X14.2.1", "X14.2.2", "X14.0.11", "X14.2.5", "X14.0.10", "X14.2.6", "X14.2.7", "X14.3.0", "X14.3.1", "X14.3.2", "X14.3.3", "X15.0.0", "X14.3.4", "X14.3.5", "X15.0.1", "X15.0.2", "X15.0.3", "X14.3.6", "X15.2.0", "X15.2.1", "X15.2.2", "X15.2.3", "X14.3.7", "X15.2.4.", "X15.2.4", "X15.3.0", "X15.3.1", "X15.3.2", "X15.4.0", "X15.5.0", "X15.5.1", "X15.5.2", "X15.5.3" ], "ecosystem": null, "fixed_versions": [], "package_name": "Cisco TelePresence Video Communication Server (VCS) Expressway", "purl": null } ], "cwes": [ 798 ], "cvss_score": 9.8, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 14.225375316666666, "t0_at": "2026-10-21T16:14:19.225000+00:00", "signals": { "trigger_signal": { "at": "2026-10-21T16:14:19.225000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-10-21T16:14:19.225000+00:00", "url": "https://www.cve.org/CVERecord?id=CVE-2026-76466" } } }
published 2026-10-21 17:07Z
last change 2026-10-21 20:05Z
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