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Ios Xr

ios_xr

Vendor: Cisco • 193 CVEs

CVEs (193)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Cisco
1Ios Xr
May 6, 2026
Jul 15, 2016
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
The CLI in Cisco IOS XR 6.x through 6.0.1 allows local users to execute arbitrary OS commands in a privileged context by leveraging unspecified container access, aka Bug ID CSCuz62721.
1Cisco
1Ios Xr
May 6, 2026
Jul 15, 2016
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
Cisco IOS XR 5.x through 5.2.5 on NCS 6000 devices allows remote attackers to cause a denial of service (timer consumption and Route Processor reload) via crafted SSH traffic, aka Bug ID CSCux76819.
1Cisco
4Ios
Ios XeIos Xr+1 more
May 6, 2026
May 29, 2016
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS XE 2.1 through 3.17S, IOS XR 2.0.0 through 5.3.2, and NX-OS allows remote attackers to cause a denial of service (packet-processing outag...Show more
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS XE 2.1 through 3.17S, IOS XR 2.0.0 through 5.3.2, and NX-OS allows remote attackers to cause a denial of service (packet-processing outage) via crafted ND messages, aka Bug ID CSCuz66542, as exploited in the wild in May 2016.Show less
1Cisco
1Ios Xr
May 6, 2026
May 25, 2016
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Cisco IOS XR through 5.3.2 mishandles Local Packet Transport Services (LPTS) flow-base entries, which allows remote attackers to cause a denial of service (session drop) by making many connection attempts to open TCP por...Show more
Cisco IOS XR through 5.3.2 mishandles Local Packet Transport Services (LPTS) flow-base entries, which allows remote attackers to cause a denial of service (session drop) by making many connection attempts to open TCP ports, aka Bug ID CSCux95576.Show less
1Cisco
1Ios Xr
May 6, 2026
Apr 12, 2016
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
Cisco IOS XR 4.2.3, 4.3.0, 4.3.4, and 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (CRC and symbol errors, and interface flap) via crafted bit patterns in packets, aka Bug ID CSCuv78548.
1Cisco
1Ios Xr
May 6, 2026
Mar 24, 2016
N/A· v4
6.5 MEDIUM· v3
6.8 MEDIUM· v2
The SCP and SFTP modules in Cisco IOS XR 5.0.0 through 5.2.5 on Network Convergence System 6000 devices use weak permissions for system files, which allows remote authenticated users to cause a denial of service (overwri...Show more
The SCP and SFTP modules in Cisco IOS XR 5.0.0 through 5.2.5 on Network Convergence System 6000 devices use weak permissions for system files, which allows remote authenticated users to cause a denial of service (overwrite) via unspecified vectors, aka Bug ID CSCuw75848.Show less
1Cisco
1Ios Xr
May 6, 2026
Mar 12, 2016
N/A· v4
5.3 MEDIUM· v3
4.6 MEDIUM· v2
Cisco IOS XR through 4.3.2 on Gigabit Switch Router (GSR) 12000 devices does not properly check for a Bidirectional Forwarding Detection (BFD) header in a UDP packet, which allows remote attackers to cause a denial of se...Show more
Cisco IOS XR through 4.3.2 on Gigabit Switch Router (GSR) 12000 devices does not properly check for a Bidirectional Forwarding Detection (BFD) header in a UDP packet, which allows remote attackers to cause a denial of service (line-card restart) via a crafted packet, aka Bug ID CSCuw56900.Show less
1Cisco
1Ios Xr
May 6, 2026
Jan 5, 2016
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Cisco IOS XR 4.2.0, 4.3.0, 5.0.0, 5.1.0, 5.2.0, 5.2.2, 5.2.4, 5.3.0, and 5.3.2 does not properly restrict the number of Path Computation Elements (PCEs) for OSPF LSA opaque area updates, which allows remote attackers to...Show more
Cisco IOS XR 4.2.0, 4.3.0, 5.0.0, 5.1.0, 5.2.0, 5.2.2, 5.2.4, 5.3.0, and 5.3.2 does not properly restrict the number of Path Computation Elements (PCEs) for OSPF LSA opaque area updates, which allows remote attackers to cause a denial of service (device reload) via a crafted update, aka Bug ID CSCuw83486.Show less
1Cisco
7Asr 9001
Asr 9006Asr 9010+4 more
May 6, 2026
Sep 20, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The DHCPv6 server in Cisco IOS on ASR 9000 devices with software 5.2.0 Base allows remote attackers to cause a denial of service (process reset) via crafted packets, aka Bug ID CSCun72171.
1Cisco
1Ios Xr
May 6, 2026
Sep 18, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The DHCPv6 server in Cisco IOS on ASR 9000 devices with software 5.2.0 Base allows remote attackers to cause a denial of service (process reset) via crafted packets, aka Bug ID CSCun36525.
1Cisco
1Ios Xr
May 6, 2026
Jul 23, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The Local Packet Transport Services (LPTS) implementation in Cisco IOS XR 5.1.2, 5.1.3, 5.2.1, and 5.2.2 on ASR9k devices makes incorrect decisions about the opening of TCP and UDP ports during the processing of flow bas...Show more
The Local Packet Transport Services (LPTS) implementation in Cisco IOS XR 5.1.2, 5.1.3, 5.2.1, and 5.2.2 on ASR9k devices makes incorrect decisions about the opening of TCP and UDP ports during the processing of flow base entries, which allows remote attackers to cause a denial of service (resource consumption) by sending traffic to these ports continuously, aka Bug ID CSCur88273.Show less
1Cisco
1Ios Xr
May 6, 2026
Jul 22, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The Concurrent Data Management Replication process in Cisco IOS XR 5.3.0 on ASR 9000 devices allows remote attackers to cause a denial of service (BGP process reload) via malformed BGPv4 packets, aka Bug ID CSCur70670.
1Cisco
1Ios Xr
May 6, 2026
Jun 25, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco IOS XR 5.1.3 allows remote attackers to cause a denial of service (process reload) via crafted MPLS Label Distribution Protocol (LDP) packets, aka Bug ID CSCuu77478.
1Cisco
1Ios Xr
May 6, 2026
Jun 23, 2015
N/A· v4
N/A· v3
5.7 MEDIUM· v2
Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU chip reset or line-card reload) by sending crafted IEEE 802.3x flow-control PAUSE frames on the local network, aka Bug ID C...Show more
Cisco IOS XR 5.3.1 on ASR 9000 devices allows remote attackers to cause a denial of service (NPU chip reset or line-card reload) by sending crafted IEEE 802.3x flow-control PAUSE frames on the local network, aka Bug ID CSCut19959.Show less
1Cisco
1Ios Xr
May 6, 2026
Jun 19, 2015
N/A· v4
N/A· v3
4.0 MEDIUM· v2
Cisco IOS XR 5.1.1.K9SEC allows remote authenticated users to cause a denial of service (vty error, and SSH and TELNET outage) via a crafted disconnect action within an SSH session, aka Bug ID CSCul63127.
1Cisco
1Ios Xr
May 6, 2026
Jun 19, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco IOS XR 5.2.1 allows remote attackers to cause a denial of service (ipv6_io service reload) via a malformed IPv6 packet, aka Bug ID CSCuq95565.
1Cisco
1Ios Xr
May 6, 2026
Jun 12, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
telnetd in Cisco IOS XR 5.0.1 on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (device reload) via a malformed TELNET packet, aka Bug ID CSCuq31566.
1Cisco
1Ios Xr
May 6, 2026
Apr 17, 2015
N/A· v4
N/A· v3
7.8 HIGH· v2
Cisco IOS XR 4.3.4 through 5.3.0 on ASR 9000 devices, when uRPF, PBR, QoS, or an ACL is configured, does not properly handle bridge-group virtual interface (BVI) traffic, which allows remote attackers to cause a denial o...Show more
Cisco IOS XR 4.3.4 through 5.3.0 on ASR 9000 devices, when uRPF, PBR, QoS, or an ACL is configured, does not properly handle bridge-group virtual interface (BVI) traffic, which allows remote attackers to cause a denial of service (chip and card hangs and reloads) by triggering use of a BVI interface for IPv4 packets, aka Bug ID CSCur62957.Show less
1Cisco
7Asr 9001
Asr 9006Asr 9010+4 more
May 6, 2026
Apr 11, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco ASR 9000 devices with software 5.3.0.BASE do not recognize that certain ACL entries have a single-host constraint, which allows remote attackers to bypass intended network-resource access restrictions by using an a...Show more
Cisco ASR 9000 devices with software 5.3.0.BASE do not recognize that certain ACL entries have a single-host constraint, which allows remote attackers to bypass intended network-resource access restrictions by using an address that was not supposed to have been allowed, aka Bug ID CSCur28806.Show less
1Cisco
1Ios Xr
May 6, 2026
Mar 26, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The DHCPv4 server in Cisco IOS XR 5.2.2 on ASR 9000 devices allows remote attackers to cause a denial of service (service outage) via a flood of crafted DHCP packets, aka Bug ID CSCup67822.