Cisco Ios Xr Software
Monthly
Improper neutralization flaws (CWE-707) in Cisco IOS XR Software allow an authenticated remote attacker with low privileges to achieve full confidentiality, integrity, and availability impact against affected devices. The vulnerabilities were identified internally by Cisco's security engineering team and addressed in a batch hardening release, reference advisory cisco-sa-hardening-iosxr-qg64NcM. No public exploit code has been identified at time of analysis, though the CVSS 8.8 score and complete C/I/A triad reflect significant potential impact in carrier and enterprise routing infrastructure.
Improper handling of exceptional conditions (CWE-703) in Cisco IOS XR Software allows an authenticated, remote attacker with low-privilege credentials to achieve high-impact compromise of confidentiality, integrity, and availability. The vulnerabilities were discovered internally by Cisco's security engineering team during a proactive review and are addressed in a software hardening release. No public exploit or active exploitation has been identified at time of analysis, but the CVSS 8.8 score and full C:H/I:H/A:H impact profile make this a significant risk for service-provider and enterprise core-network operators running affected IOS XR releases.
Improper access control in Cisco IOS XR Software allows remote unauthenticated attackers to bypass authorization restrictions and gain full compromise of affected routing platforms, per Cisco's CVSS 9.8 rating. The flaw is one of several internally discovered issues addressed in a batch of software-hardening releases from Cisco's proactive security review (advisory cisco-sa-hardening-iosxr-qg64NcM). No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV; the vendor-supplied description is high-level boilerplate with no concrete technical detail.
Incorrect calculation vulnerabilities (CWE-682) in Cisco IOS XR Software allow an unauthenticated attacker on an adjacent network segment to achieve full confidentiality, integrity, and availability compromise of the affected device, as reflected by the CVSS 8.8 AV:A/PR:N/C:H/I:H/A:H vector. The vulnerabilities were discovered through an internal Cisco engineering security review and addressed in a software hardening release; no external exploitation has been reported. Given that IOS XR underpins carrier-grade routers and service-provider backbone infrastructure, successful exploitation could be highly disruptive to network operations.
Improper resource lifecycle control (CWE-664) in Cisco IOS XR Software is addressed by a batch software-hardening release stemming from Cisco's internal security review (advisory cisco-sa-hardening-iosxr-qg64NcM). The provided CVSS vector (AV:N/AC:L/PR:N/UI:N, 9.8) implies a remotely reachable, unauthenticated flaw with high confidentiality, integrity, and availability impact on IOS XR routers, but Cisco's omnibus advisory publishes no technical specifics on the affected component or trigger. No public exploit identified at time of analysis, and no EPSS/KEV data was supplied.
Remote unauthenticated denial-of-service conditions in Cisco IOS XR Software stem from multiple insufficient control flow management flaws (CWE-691) discovered during an internal Cisco security hardening review. The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H) indicates network-accessible, zero-friction exploitation with scope change, meaning the availability impact can propagate beyond the directly targeted device to affect connected or dependent network infrastructure. No active exploitation has been identified and no public proof-of-concept exists at time of analysis; Cisco has proactively released software hardening builds addressing these issues.
Protection mechanism failures in Cisco IOS XR Software allow remote unauthenticated attackers to achieve high availability disruption and limited integrity impact against affected routers. Discovered through Cisco's own internal security audit, this CVE bundles multiple CWE-693 class weaknesses addressed in a coordinated hardening release. No active exploitation has been identified, but the combination of network-reachability, no authentication requirement, and an A:H CVSS impact score makes this a high-priority patch for service-provider and carrier-grade router deployments.
Improper neutralization flaws (CWE-707) in Cisco IOS XR Software allow an authenticated remote attacker with low privileges to achieve full confidentiality, integrity, and availability impact against affected devices. The vulnerabilities were identified internally by Cisco's security engineering team and addressed in a batch hardening release, reference advisory cisco-sa-hardening-iosxr-qg64NcM. No public exploit code has been identified at time of analysis, though the CVSS 8.8 score and complete C/I/A triad reflect significant potential impact in carrier and enterprise routing infrastructure.
Improper handling of exceptional conditions (CWE-703) in Cisco IOS XR Software allows an authenticated, remote attacker with low-privilege credentials to achieve high-impact compromise of confidentiality, integrity, and availability. The vulnerabilities were discovered internally by Cisco's security engineering team during a proactive review and are addressed in a software hardening release. No public exploit or active exploitation has been identified at time of analysis, but the CVSS 8.8 score and full C:H/I:H/A:H impact profile make this a significant risk for service-provider and enterprise core-network operators running affected IOS XR releases.
Improper access control in Cisco IOS XR Software allows remote unauthenticated attackers to bypass authorization restrictions and gain full compromise of affected routing platforms, per Cisco's CVSS 9.8 rating. The flaw is one of several internally discovered issues addressed in a batch of software-hardening releases from Cisco's proactive security review (advisory cisco-sa-hardening-iosxr-qg64NcM). No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV; the vendor-supplied description is high-level boilerplate with no concrete technical detail.
Incorrect calculation vulnerabilities (CWE-682) in Cisco IOS XR Software allow an unauthenticated attacker on an adjacent network segment to achieve full confidentiality, integrity, and availability compromise of the affected device, as reflected by the CVSS 8.8 AV:A/PR:N/C:H/I:H/A:H vector. The vulnerabilities were discovered through an internal Cisco engineering security review and addressed in a software hardening release; no external exploitation has been reported. Given that IOS XR underpins carrier-grade routers and service-provider backbone infrastructure, successful exploitation could be highly disruptive to network operations.
Improper resource lifecycle control (CWE-664) in Cisco IOS XR Software is addressed by a batch software-hardening release stemming from Cisco's internal security review (advisory cisco-sa-hardening-iosxr-qg64NcM). The provided CVSS vector (AV:N/AC:L/PR:N/UI:N, 9.8) implies a remotely reachable, unauthenticated flaw with high confidentiality, integrity, and availability impact on IOS XR routers, but Cisco's omnibus advisory publishes no technical specifics on the affected component or trigger. No public exploit identified at time of analysis, and no EPSS/KEV data was supplied.
Remote unauthenticated denial-of-service conditions in Cisco IOS XR Software stem from multiple insufficient control flow management flaws (CWE-691) discovered during an internal Cisco security hardening review. The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H) indicates network-accessible, zero-friction exploitation with scope change, meaning the availability impact can propagate beyond the directly targeted device to affect connected or dependent network infrastructure. No active exploitation has been identified and no public proof-of-concept exists at time of analysis; Cisco has proactively released software hardening builds addressing these issues.
Protection mechanism failures in Cisco IOS XR Software allow remote unauthenticated attackers to achieve high availability disruption and limited integrity impact against affected routers. Discovered through Cisco's own internal security audit, this CVE bundles multiple CWE-693 class weaknesses addressed in a coordinated hardening release. No active exploitation has been identified, but the combination of network-reachability, no authentication requirement, and an A:H CVSS impact score makes this a high-priority patch for service-provider and carrier-grade router deployments.