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CVE-2026-20277

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2026
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

Cisco IOS XR Software Security Hardening Release: September 2026

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20277 are related to protection mechanism failure issues that are grouped under the Common Weakness Enumeration (CWE) CWE-693.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Cisco IOS XR Software

Vendor
Cisco
Product
Cisco IOS XR Software
Platforms
Unknown
Default status
unknown
Cisco IOS XR Software · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.5.29affectedUnavailableUnavailableUnavailableNone listed
7.0.1affectedUnavailableUnavailableUnavailableNone listed
6.5.26affectedUnavailableUnavailableUnavailableNone listed
6.5.25affectedUnavailableUnavailableUnavailableNone listed
6.5.28affectedUnavailableUnavailableUnavailableNone listed
6.5.90affectedUnavailableUnavailableUnavailableNone listed
7.1.1affectedUnavailableUnavailableUnavailableNone listed
7.0.90affectedUnavailableUnavailableUnavailableNone listed
6.7.1affectedUnavailableUnavailableUnavailableNone listed
7.0.2affectedUnavailableUnavailableUnavailableNone listed
7.1.15affectedUnavailableUnavailableUnavailableNone listed
7.2.1affectedUnavailableUnavailableUnavailableNone listed
7.1.2affectedUnavailableUnavailableUnavailableNone listed
6.7.2affectedUnavailableUnavailableUnavailableNone listed
7.0.11affectedUnavailableUnavailableUnavailableNone listed
7.0.12affectedUnavailableUnavailableUnavailableNone listed
7.0.14affectedUnavailableUnavailableUnavailableNone listed
7.1.25affectedUnavailableUnavailableUnavailableNone listed
7.2.12affectedUnavailableUnavailableUnavailableNone listed
7.3.1affectedUnavailableUnavailableUnavailableNone listed
7.1.3affectedUnavailableUnavailableUnavailableNone listed
6.7.3affectedUnavailableUnavailableUnavailableNone listed
7.4.1affectedUnavailableUnavailableUnavailableNone listed
7.2.2affectedUnavailableUnavailableUnavailableNone listed
6.7.4affectedUnavailableUnavailableUnavailableNone listed
6.5.31affectedUnavailableUnavailableUnavailableNone listed
7.3.15affectedUnavailableUnavailableUnavailableNone listed
7.3.16affectedUnavailableUnavailableUnavailableNone listed
6.8.1affectedUnavailableUnavailableUnavailableNone listed
7.4.15affectedUnavailableUnavailableUnavailableNone listed
6.5.32affectedUnavailableUnavailableUnavailableNone listed
7.3.2affectedUnavailableUnavailableUnavailableNone listed
7.5.1affectedUnavailableUnavailableUnavailableNone listed
7.4.16affectedUnavailableUnavailableUnavailableNone listed
7.3.27affectedUnavailableUnavailableUnavailableNone listed
7.6.1affectedUnavailableUnavailableUnavailableNone listed
7.5.2affectedUnavailableUnavailableUnavailableNone listed
7.8.1affectedUnavailableUnavailableUnavailableNone listed
7.6.15affectedUnavailableUnavailableUnavailableNone listed
7.5.12affectedUnavailableUnavailableUnavailableNone listed
7.8.12affectedUnavailableUnavailableUnavailableNone listed
7.3.3affectedUnavailableUnavailableUnavailableNone listed
7.7.1affectedUnavailableUnavailableUnavailableNone listed
6.8.2affectedUnavailableUnavailableUnavailableNone listed
7.3.4affectedUnavailableUnavailableUnavailableNone listed
7.4.2affectedUnavailableUnavailableUnavailableNone listed
6.7.35affectedUnavailableUnavailableUnavailableNone listed
6.9.1affectedUnavailableUnavailableUnavailableNone listed
7.6.2affectedUnavailableUnavailableUnavailableNone listed
7.5.3affectedUnavailableUnavailableUnavailableNone listed
7.7.2affectedUnavailableUnavailableUnavailableNone listed
6.9.2affectedUnavailableUnavailableUnavailableNone listed
7.9.1affectedUnavailableUnavailableUnavailableNone listed
7.10.1affectedUnavailableUnavailableUnavailableNone listed
7.8.2affectedUnavailableUnavailableUnavailableNone listed
7.5.4affectedUnavailableUnavailableUnavailableNone listed
6.5.33affectedUnavailableUnavailableUnavailableNone listed
7.8.22affectedUnavailableUnavailableUnavailableNone listed
7.7.21affectedUnavailableUnavailableUnavailableNone listed
7.9.2affectedUnavailableUnavailableUnavailableNone listed
7.3.5affectedUnavailableUnavailableUnavailableNone listed
7.5.5affectedUnavailableUnavailableUnavailableNone listed
7.11.1affectedUnavailableUnavailableUnavailableNone listed
7.9.21affectedUnavailableUnavailableUnavailableNone listed
7.10.2affectedUnavailableUnavailableUnavailableNone listed
24.1.1affectedUnavailableUnavailableUnavailableNone listed
7.6.3affectedUnavailableUnavailableUnavailableNone listed
7.3.6affectedUnavailableUnavailableUnavailableNone listed
7.5.52affectedUnavailableUnavailableUnavailableNone listed
7.11.2affectedUnavailableUnavailableUnavailableNone listed
24.2.1affectedUnavailableUnavailableUnavailableNone listed
24.1.2affectedUnavailableUnavailableUnavailableNone listed
24.2.11affectedUnavailableUnavailableUnavailableNone listed
24.3.1affectedUnavailableUnavailableUnavailableNone listed
24.4.1affectedUnavailableUnavailableUnavailableNone listed
24.2.2affectedUnavailableUnavailableUnavailableNone listed
7.8.23affectedUnavailableUnavailableUnavailableNone listed
7.11.21affectedUnavailableUnavailableUnavailableNone listed
24.2.20affectedUnavailableUnavailableUnavailableNone listed
24.3.2affectedUnavailableUnavailableUnavailableNone listed
24.4.10affectedUnavailableUnavailableUnavailableNone listed
6.5.35affectedUnavailableUnavailableUnavailableNone listed
25.1.1affectedUnavailableUnavailableUnavailableNone listed
24.4.2affectedUnavailableUnavailableUnavailableNone listed
24.3.20affectedUnavailableUnavailableUnavailableNone listed
24.4.15affectedUnavailableUnavailableUnavailableNone listed
25.2.1affectedUnavailableUnavailableUnavailableNone listed
6.5.351affectedUnavailableUnavailableUnavailableNone listed
25.1.2affectedUnavailableUnavailableUnavailableNone listed
24.3.30affectedUnavailableUnavailableUnavailableNone listed
25.3.1affectedUnavailableUnavailableUnavailableNone listed
6.5.352affectedUnavailableUnavailableUnavailableNone listed
24.4.30affectedUnavailableUnavailableUnavailableNone listed
24.2.21affectedUnavailableUnavailableUnavailableNone listed
25.4.1affectedUnavailableUnavailableUnavailableNone listed
25.2.2affectedUnavailableUnavailableUnavailableNone listed
25.2.15affectedUnavailableUnavailableUnavailableNone listed
7.2.0affectedUnavailableUnavailableUnavailableNone listed
7.0.0affectedUnavailableUnavailableUnavailableNone listed
25.2.30affectedUnavailableUnavailableUnavailableNone listed
6.5.353affectedUnavailableUnavailableUnavailableNone listed
26.1.1affectedUnavailableUnavailableUnavailableNone listed
25.1.30affectedUnavailableUnavailableUnavailableNone listed
25.3.15affectedUnavailableUnavailableUnavailableNone listed
26.2.100affectedUnavailableUnavailableUnavailableNone listed
25.4.2affectedUnavailableUnavailableUnavailableNone listed
26.2.1affectedUnavailableUnavailableUnavailableNone listed
25.4.30affectedUnavailableUnavailableUnavailableNone listed
26.1.2affectedUnavailableUnavailableUnavailableNone listed
25.4.201affectedUnavailableUnavailableUnavailableNone listed
26.2.101affectedUnavailableUnavailableUnavailableNone listed
25.2.21affectedUnavailableUnavailableUnavailableNone listed