CVE-2026-76466

criticalPriorität · beachten · 49OT-Risiko · hochEPSS 0.004 · 36. PerzentilExploit · PoCFRNLUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
0.42% (36th) EPSS
CVSS 9.8 · critical
Is it mine?
95 products
Prüfe deine Angriffsfläche
Who says so?
3 sources
cisco_csaf · ncsc_nl · certfr

EPSS · bewertet 2026-10-27

A vulnerability in the database service feature of Cisco Expressway Series could allow an unauthenticated, remote attacker with network access to a Cisco Expressway device to execute arbitrary operating system commands as root. This vulnerability is due to the use of persistent cookies. Additionally, there is insufficient validation of client certificates when the TLS Verify Mode is set to Enabled for clustering, which means that client certificates are not validated. An attacker with possession of the cookies could exploit this vulnerability by connecting to the database service and invoking specific remote procedure call (RPC) commands. A successful exploit could allow the attacker to execute arbitrary commands as root on the underlying operating system of an affected device. Note: Cisco Expressway Series refers to Cisco Expressway Core (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.8
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 5.9
v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Cisco PSIRT US
03

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
04

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-798USCWE-798USCWE-798US
05

Exploits (1)

Öffentlicher Proof-of-Concept- und Exploit-Code.

06

betroffene Produkte (95)

Betroffene Produkte und Versionsbereiche.

20 von 95 angezeigt
07

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

  • NCSC-2026-0451Kwetsbaarheden verholpen in Cisco Expressway SeriesNL2026-10-22csaf · ncsc_nlNL

    Cisco heeft meerdere kwetsbaarheden verholpen in Cisco Expressway Series.

  • cisco-sa-vcs-static-cred-hr7EWZ8tCisco Expressway Series Remote Code Execution Vulnerability2026-10-21csaf · cisco_csafUS

    A vulnerability in the database service feature of Cisco Expressway Series could allow an unauthenticated, remote attacker with network access to a Cisco Expressway device to execute arbitrary operating system commands as root. This vulnerability is due to the use of persistent cookies. Additionally, there is insufficient validation of client certificates when the TLS Verify Mode is set to Enabled for clustering, which means that client certificates are not validated. An attacker with possession of the cookies could exploit this vulnerability by connecting to the database service and invoking specific remote procedure call (RPC) commands. A successful exploit could allow the attacker to execute arbitrary commands as root on the underlying operating system of an affected device. Note: Cisco Expressway Series refers to Cisco Expressway Core (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of October 21, 2026, Security Advisories ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-notice-QGwHnJ6k"]. In addition, for further documentation of improvements and fixes in Cisco Expressway Series see Cisco Expressway Series Security Hardening Release: October 2026 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-exwy-hardening-FhcqBVcs"].

  • CERTFR-2026-AVI-1360Multiples vulnérabilités dans les produits CiscoFrançais2026-10-22vendor · certfrFR
08

quellen

Welche Quellen diesen Datensatz belegen und wann.

cisco_csafncsc_nlcertfrNVDCVE.orgMITRE
veröffentlicht 2026-10-21geändert 2026-10-22
09

Referenzen (1) nvd

Externe Belege — Patches, Meldungen, Analysen.

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