CVE-2026-20271

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Niewystarczająca kontrola przepływu w Cisco IOS XE może prowadzić do nieautoryzowanego dostępu.

CVSS

8.6

EPSS

0.5%

Exploit

none

Vendor

cisco

Opis źródłowy (NVD)

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20271 are related to insufficient control flow management issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-691.  

brak Brak patcha

Źródła i daty

Źródło	Wartość
NVD – CVSS	8.6
CISA KEV (aktywnie wykorzystywane)	Nie
FIRST EPSS (prawdopodobieństwo exploita)	0.5%
Opublikowano (NVD)	2026-08-05 17:16:48 UTC
Ostatnia modyfikacja (NVD)	2026-10-03 00:16:38 UTC

Referencje

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxe-V8NMuMZJ ([email protected]) [Vendor Advisory]
https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification (af854a3a-2127-422b-91ae-364da2661108)