IX
Product
IOS XR
by Cisco · last CVE Sep 2, 2026
On CISA KEVExploited in the wild
199
CVEs
9
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 4High 79Medium 53Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2015-0618
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2%
Feb 21
Cisco IOS XR 5.0.1 and 5.2.1 on Network Convergence System (NCS) 6000 devices and 5.1.3 and 5.1.4 on Carrier Routing System X (CRS-X) devices allows remote attackers to cause a…
Affected: 5.0.1; 5.2.1
CVE-2014-8014
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1%
Dec 18
Cisco IOS XR allows remote attackers to cause a denial of service (RSVP process reload) via a malformed RSVP packet, aka Bug ID CSCub63710
Affected: All versions, or not specified
CVE-2014-8005
–
1%
Nov 26
Race condition in the lighttpd module in Cisco IOS XR 5.1 and earlier on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (process…
Affected: through 5.1.0
CVE-2014-8004
–
2%
Nov 25
Cisco IOS XR allows remote attackers to cause a denial of service (LISP process reload) by establishing many LISP TCP sessions, aka Bug ID CSCuq90378
Affected: All versions, or not specified
CVE-2014-3396
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1%
Oct 5
Cisco IOS XR on ASR 9000 devices does not properly use compression for port-range and address-range encoding, which allows remote attackers to bypass intended Typhoon line-card…
Affected: All versions, or not specified
CVE-2014-3379
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1%
Sep 20
Cisco IOS XR 5.1 and earlier on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (NPU and card hang or reload) via a malformed MPLS…
Affected: 2.0; 3.0; 3.0.1; 3.1; 3.1.0; 3.2; +34 more
CVE-2014-3378
–
2%
Sep 20
tacacsd in Cisco IOS XR 5.1 and earlier allows remote attackers to cause a denial of service (process reload) via a malformed TACACS+ packet, aka Bug ID CSCum00468
Affected: 2.0; 3.0; 3.0.1; 3.1; 3.1.0; 3.2; +34 more
CVE-2014-3377
–
1%
Sep 20
snmpd in Cisco IOS XR 5.1 and earlier allows remote authenticated users to cause a denial of service (process reload) via a malformed SNMPv2 packet, aka Bug ID CSCun67791
Affected: 2.0; 3.0; 3.0.1; 3.1; 3.1.0; 3.2; +34 more
CVE-2014-3376
–
2%
Sep 20
Cisco IOS XR 5.1 and earlier allows remote attackers to cause a denial of service (process reload) via a malformed RSVP packet, aka Bug ID CSCuq12031
Affected: 2.0; 3.0; 3.0.1; 3.1; 3.1.0; 3.2; +34 more
CVE-2014-3342
–
1%
Sep 12
The CLI in Cisco IOS XR allows remote authenticated users to obtain sensitive information via unspecified commands, aka Bug IDs CSCuq42336, CSCuq76853, CSCuq76873, and CSCuq45383
Affected: All versions, or not specified
CVE-2014-3343
–
2%
Sep 10
Cisco IOS XR 5.1 allows remote attackers to cause a denial of service (DHCPv6 daemon crash) via a malformed DHCPv6 packet, aka Bug ID CSCuo59052
Affected: 5.1.0
CVE-2014-3353
–
3%
Sep 4
Cisco IOS XR 4.3(.2) and earlier, as used in Cisco Carrier Routing System (CRS), allows remote attackers to cause a denial of service (CPU consumption and IPv6 packet drops) via a…
Affected: through 4.3.2; 4.3.0; 4.3.1
CVE-2014-3335
–
1%
Aug 26
Cisco IOS XR 4.3(.2) and earlier on ASR 9000 devices does not properly perform NetFlow sampling of packets with multicast destination MAC addresses, which allows remote attackers…
Affected: through 4.3.2; 4.3.0; 4.3.1
CVE-2014-3322
–
1%
Jul 24
Cisco IOS XR 4.3(.2) and earlier on ASR 9000 devices does not properly perform NetFlow sampling of IP packets, which allows remote attackers to cause a denial of service (chip and…
Affected: through 4.3.2; 4.3.0; 4.3.1
CVE-2014-3321
–
1%
Jul 18
Cisco IOS XR 4.3.4 and earlier on ASR 9000 devices, when bridge-group virtual interface (BVI) routing is enabled, allows remote attackers to cause a denial of service (chip and…
Affected: through 4.3.4; 4.3.0; 4.3.1; 4.3.2
CVE-2014-3308
–
3%
Jul 7
Cisco IOS XR on Trident line cards in ASR 9000 devices lacks a static punt policer, which allows remote attackers to cause a denial of service (CPU consumption) by sending many…
Affected: All versions, or not specified
CVE-2014-2176
–
3%
Jun 14
Cisco IOS XR 4.1.2 through 5.1.1 on ASR 9000 devices, when a Trident-based line card is used, allows remote attackers to cause a denial of service (NP chip and line card reload)…
Affected: 4.1.2; 4.2.0; 4.3.1; 5.1.0; 5.1.1
CVE-2014-3271
–
2%
May 20
The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service (device crash) via a malformed packet, aka Bug IDs CSCum85558, CSCum20949,…
Affected: All versions, or not specified
CVE-2014-3270
–
2%
May 20
The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service (process hang) via a malformed packet, aka Bug ID CSCul80924
Affected: All versions, or not specified
CVE-2014-2144
–
1%
Apr 5
Cisco IOS XR does not properly throttle ICMPv6 redirect packets, which allows remote attackers to cause a denial of service (IPv4 and IPv6 transit outage) via crafted redirect…
Affected: All versions, or not specified
CVE-2013-6700
–
1%
Nov 29
The SNMP module in Cisco IOS XR allows remote attackers to cause a denial of service (process reload) via a request for an unspecified MIB, aka Bug ID CSCuh43144
Affected: All versions, or not specified
CVE-2013-5565
–
1%
Nov 8
The OSPFv3 functionality in Cisco IOS XR 5.1 allows remote attackers to cause a denial of service (process crash) via a malformed LSA Type-1 packet, aka Bug ID CSCuj82176
Affected: 5.1.0
CVE-2013-5549
–
2%
Oct 25
Cisco IOS XR 3.8.1 through 4.2.0 does not properly process fragmented packets within the RP-A, RP-B, PRP, and DRP-B route-processor components, which allows remote attackers to…
Affected: 3.8.1; 3.8.2; 3.8.3; 3.8.4; 3.9.0; 3.9.1; +10 more
CVE-2013-5503
–
1%
Oct 2
The UDP process in Cisco IOS XR 4.3.1 does not free packet memory upon detecting full packet queues, which allows remote attackers to cause a denial of service (memory…
Affected: 4.3.1
CVE-2013-5498
–
2%
Sep 27
The PPTP-ALG component in CRS Carrier Grade Services Engine (CGSE) and ASR 9000 Integrated Service Module (ISM) in Cisco IOS XR allows remote attackers to cause a denial of…
Affected: All versions, or not specified
CVE-2013-3470
–
3%
Aug 30
The RIP process in Cisco IOS XR allows remote attackers to cause a denial of service (process crash) via a crafted version-2 RIP packet, aka Bug ID CSCue46731
Affected: All versions, or not specified
CVE-2013-3464
–
0%
Aug 13
Cisco IOS XR allows local users to cause a denial of service (Silicon Packet Processor memory corruption, improper mutex handling, and device reload) by starting an outbound flood…
Affected: 2.0(.0); 3.0(.0); 3.0(.1); 3.2(.0); 3.2(.1); 3.2(.2); +34 more
CVE-2013-1204
–
1%
May 23
Memory leak in the SNMP process in Cisco IOS XR allows remote attackers to cause a denial of service (memory consumption or process reload) by sending many port-162 UDP packets,…
Affected: All versions, or not specified
CVE-2013-1234
–
1%
May 3
The SNMP module in Cisco IOS XR allows remote authenticated users to cause a denial of service (process restart) via crafted SNMP packets, aka Bug ID CSCue69472
Affected: All versions, or not specified
CVE-2013-1216
–
1%
Apr 29
Memory leak in the SNMP module in Cisco IOS XR allows remote authenticated users to cause a denial of service (memory consumption and process restart) via crafted SNMP packets,…
Affected: All versions, or not specified
CVE-2013-1162
–
1%
Mar 26
The traffic engineering (TE) processing subsystem in Cisco IOS XR allows remote attackers to cause a denial of service (process restart) via crafted TE packets, aka Bug ID…
Affected: All versions, or not specified
CVE-2012-4617
–
2%
Sep 27
The BGP implementation in Cisco IOS 15.2, IOS XE 3.5.xS before 3.5.2S, and IOS XR 4.1.0 through 4.2.2 allows remote attackers to cause a denial of service (multiple connection…
Affected: 4.1; 4.1.1; 4.1.2; 4.2.0; 4.2.1; 4.2.2
CVE-2012-2488
–
2%
May 31
Cisco IOS XR before 4.2.1 on ASR 9000 series devices and CRS series devices allows remote attackers to cause a denial of service (packet transmission outage) via a crafted packet,…
Affected: through 4.2.0; 4.0.3; 4.0.4; 4.1; 4.1.1; 4.1.2; +1 more
CVE-2011-3295
–
2%
May 2
The NETIO and IPV4_IO processes in Cisco IOS XR 3.8 through 4.1, as used in Cisco Carrier Routing System and other products, allow remote attackers to cause a denial of service…
Affected: 3.8.0; 3.8.1; 3.8.2; 3.8.3; 3.8.4; 3.9.0; +8 more
CVE-2011-2549
–
2%
Jul 28
Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service…
Affected: 4.1.0
CVE-2011-1651
–
1%
May 31
Cisco IOS XR 3.9.x and 4.0.x before 4.0.3 and 4.1.x before 4.1.1, when an SPA interface processor is installed, allows remote attackers to cause a denial of service (device…
Affected: 3.0; 3.9.0; 3.9.1; 3.9.2; 4.0.0; 4.0.1; +2 more
CVE-2011-0949
–
1%
May 31
Cisco IOS XR 3.6.x, 3.8.x before 3.8.3, and 3.9.x before 3.9.1 does not properly remove sshd_lock files from /tmp/, which allows remote attackers to cause a denial of service…
Affected: 3.6.0; 3.6.1; 3.6.2; 3.6.3; 3.8.0; 3.8.1; +2 more
CVE-2011-0943
–
1%
May 31
Cisco IOS XR 3.8.3, 3.8.4, and 3.9.1 allows remote attackers to cause a denial of service (NetIO process restart or device reload) via a crafted IPv4 packet, aka Bug ID CSCth44147
Affected: 3.8.3; 3.8.4; 3.9.1
CVE-2010-0576
–
3%
Mar 25
Unspecified vulnerability in Cisco IOS 12.0 through 12.4, IOS XE 2.1.x through 2.3.x before 2.3.2, and IOS XR 3.2.x through 3.4.3, when Multiprotocol Label Switching (MPLS) and…
Affected: 3.2; 3.2.1; 3.2.2; 3.2.4; 3.2.50; 3.3.0; +9 more
CVE-2010-0137
–
3%
Jan 21
Unspecified vulnerability in the sshd_child_handler process in the SSH server in Cisco IOS XR 3.4.1 through 3.7.0 allows remote attackers to cause a denial of service (process…
Affected: 3.4.1; 3.4.2; 3.4.3; 3.5.2; 3.5.3; 3.5.4; +3 more
CVE-2009-2056
–
1%
Aug 21
Cisco IOS XR 3.8.1 and earlier allows remote authenticated users to cause a denial of service (process crash) via vectors involving a BGP UPDATE message with many AS numbers…
Affected: through 3.8.1; 3.0; 3.0.1; 3.1; 3.1.0; 3.2; +27 more
CVE-2009-1154
–
1%
Aug 21
Cisco IOS XR 3.8.1 and earlier allows remote attackers to cause a denial of service (process crash) via a long BGP UPDATE message, as demonstrated by a message with many AS…
Affected: through 3.8.1; 3.4; 3.4.0; 3.4.1; 3.4.2; 3.4.3; +13 more
CVE-2009-0637
–
3%
Mar 27
The SCP server in Cisco IOS 12.2 through 12.4, when Role-Based CLI Access is enabled, does not enforce the CLI view configuration for file transfers, which allows remote…
Affected: 12.4
CVE-2009-0629
–
4%
Mar 27
The (1) Airline Product Set (aka ALPS), (2) Serial Tunnel Code (aka STUN), (3) Block Serial Tunnel Code (aka BSTUN), (4) Native Client Interface Architecture (NCIA) support, (5)…
Affected: 12.4
CVE-2008-1159
–
3%
May 22
Multiple unspecified vulnerabilities in the SSH server in Cisco IOS 12.4 allow remote attackers to cause a denial of service (device restart) via unknown vectors, aka Bug ID (1)…
Affected: 12.4
CVE-2007-4430
–
13%
Aug 20
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain…
Affected: 2.0; 3.0; 3.1; 3.2; 3.3; 3.4
CVE-2006-1928
–
2%
Apr 20
Cisco IOS XR, when configured for Multi Protocol Label Switching (MPLS) and running on Cisco CRS-1 routers, allows remote attackers to cause a denial of service (Modular Services…
Affected: 3.0.1; 3.1.0; 3.2; 3.2.1; 3.2.2; 3.2.3; +3 more
CVE-2006-1927
–
2%
Apr 20
Cisco IOS XR, when configured for Multi Protocol Label Switching (MPLS) and running on Cisco CRS-1 or Cisco 12000 series routers, allows remote attackers to cause a denial of…
Affected: 3.0.1; 3.1.0; 3.2; 3.2.1; 3.2.2; 3.2.3; +3 more
CVE-2005-2451
–
1%
Aug 3
Cisco IOS 12.0 through 12.4 and IOS XR before 3.2, with IPv6 enabled, allows remote attackers on a local network segment to cause a denial of service (device reload) and possibly…
Affected: 3.0.1; 3.1.0
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