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Security Advisory; NCSC-2026-0451 [1.0.0]

Security Advisory
NCSC-2026-0451 [1.0.0]
Publicatie
22-10-2026 14:09 (Europe/Amsterdam)
Prioriteit
Normaal
Betreft
Kwetsbaarheden verholpen in Cisco Expressway Series

Kenmerken

  • Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • Improper Link Resolution Before File Access ('Link Following')
  • Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
  • Improper Control of Generation of Code ('Code Injection')
  • Uncaught Exception
  • Insecure Temporary File
  • NULL Pointer Dereference
  • Exposure of Sensitive System Information to an Unauthorized Control Sphere
  • Reachable Assertion
  • Incorrect Permission Assignment for Critical Resource
  • Exposed Dangerous Method or Function
  • Out-of-bounds Write
  • Use of Hard-coded Credentials

Omschrijving

Cisco heeft meerdere kwetsbaarheden verholpen in Cisco Expressway Series.

De kwetsbaarheden betreffen onder andere onvoldoende autorisatiecontroles tijdens Mobile en Remote Access provisioning, waardoor ongeauthenticeerde externe aanvallers toegang kunnen krijgen tot gevoelige informatie. Daarnaast is er een kwetsbaarheid in de databaseservice die het mogelijk maakt voor ongeauthenticeerde aanvallers met netwerktoegang om root-commando's uit te voeren via onvoldoende validatie van clientcertificaten bij TLS Verify Mode voor clustering.

Verder zijn er diverse kwetsbaarheden geïdentificeerd door interne security reviews, waaronder problemen met improper resource control, authenticatie, input validatie, SQL-injectie, access control, pathname limitation, exception handling, out-of-bounds write, reachable assertions, null pointer dereference, uncaught exceptions, code injection, incorrect permission assignments, improper link resolutions en insecure handling of temporary files. Deze kwetsbaarheden kunnen leiden tot het omzeilen van toegangscontroles, het uitvoeren van ongeautoriseerde code, het verkrijgen van root-toegang en het blootstellen van gevoelige data. De kwetsbaarheden zijn intern ontdekt en worden aangepakt met software hardening updates.

Oplossingen

Cisco heeft software hardening updates uitgebracht om de diverse kwetsbaarheden in Cisco Expressway Series te verhelpen. Zie bijgevoegde referenties voor meer informatie.

Referenties

CVE's

Producten

Cisco
Cisco Unified Communications Manager
Expressway
Expressway Series

Disclaimer

The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.