Read the docs
TI-2019-01374 Aliases CVE-2019-1749GHSA-6v8f-xrrm-w3x9

Cisco Aggregation Services Router 900 Route Switch Processor 3 OSPFv2 Denial of Service Vulnerability

Priority LOW 33CWE-20Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A vulnerability in the ingress traffic validation of Cisco IOS XE Software for Cisco Aggregation Services Router (ASR) 900 Route Switch Processor 3 (RSP3) could allow an unauthenticated, adjacent attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the software insufficiently validates ingress traffic on the ASIC used on the RSP3 platform. An attacker could exploit this vulnerability by sending a malformed OSPF version 2 (OSPFv2) message to an affected device. A successful exploit could allow the attacker to cause a reload of the iosd process, triggering a reload of the affected device and resulting in a DoS condition.

Why it matters now

EPSS 0.00605 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco IOS XE Software3.13.6aS; 3.16.0aS; 3.16.1aS; 3.16.2aS; 3.16.3aS; 3.16.4S; 3.16.4bS; 3.16.4gS; 3.16.5S; 3.16.4cS; 3.16.4dS; 3.16.4eS; 3.16.6S; 3.16.5aS; 3.16.7S; 3.16.6bS; 3.16.7bS; 3.16.8S; 3.17.0S; 3.17.1S; 3.17.2S; 3.17.3S; 3.17.4S; 16.5.1; 16.5.2; 16.5.3; 3.18.0S; 3.18.1S; 3.18.2S; 3.18.3S; 3.18.4S; 3.18.0SP; 3.18.1SP; 3.18.1gSP; 3.18.1bSP; 3.18.2SP; 3.18.1hSP; 3.18.1iSP; 3.18.3SP; 3.18.4SP; 16.6.1; 16.6.2; 16.6.3; 16.6.4; 16.7.1; 16.7.2; 16.8.1; 16.8.1b; 16.8.1c—No fix listedCNA
  • Cisco IOS XE Software VendorCisco Affected 3.13.6aS; 3.16.0aS; 3.16.1aS; 3.16.2aS; 3.16.3aS; 3.16.4S; 3.16.4bS; 3.16.4gS; 3.16.5S; 3.16.4cS; 3.16.4dS; 3.16.4eS; 3.16.6S; 3.16.5aS; 3.16.7S; 3.16.6bS; 3.16.7bS; 3.16.8S; 3.17.0S; 3.17.1S; 3.17.2S; 3.17.3S; 3.17.4S; 16.5.1; 16.5.2; 16.5.3; 3.18.0S; 3.18.1S; 3.18.2S; 3.18.3S; 3.18.4S; 3.18.0SP; 3.18.1SP; 3.18.1gSP; 3.18.1bSP; 3.18.2SP; 3.18.1hSP; 3.18.1iSP; 3.18.3SP; 3.18.4SP; 16.6.1; 16.6.2; 16.6.3; 16.6.4; 16.7.1; 16.7.2; 16.8.1; 16.8.1b; 16.8.1c Fixed in — No fix listed CNA

CPE configurations NVD · 48

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:3.13.6as:*:*:*:*:*:*:*3.13.6asVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.0as:*:*:*:*:*:*:*3.16.0asVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.1as:*:*:*:*:*:*:*3.16.1asVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.2as:*:*:*:*:*:*:*3.16.2asVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.3as:*:*:*:*:*:*:*3.16.3asVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.4bs:*:*:*:*:*:*:*3.16.4bsVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.4cs:*:*:*:*:*:*:*3.16.4csVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.4ds:*:*:*:*:*:*:*3.16.4dsVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.4es:*:*:*:*:*:*:*3.16.4esVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.4gs:*:*:*:*:*:*:*3.16.4gsVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:3.13.6as:*:*:*:*:*:*:* Versions 3.13.6as Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.0as:*:*:*:*:*:*:* Versions 3.16.0as Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.1as:*:*:*:*:*:*:* Versions 3.16.1as Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.2as:*:*:*:*:*:*:* Versions 3.16.2as Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.3as:*:*:*:*:*:*:* Versions 3.16.3as Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.4bs:*:*:*:*:*:*:* Versions 3.16.4bs Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.4cs:*:*:*:*:*:*:* Versions 3.16.4cs Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.4ds:*:*:*:*:*:*:* Versions 3.16.4ds Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.4es:*:*:*:*:*:*:* Versions 3.16.4es Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.4gs:*:*:*:*:*:*:* Versions 3.16.4gs Vulnerable ·Cisco
Show 38 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:3.16.4s:*:*:*:*:*:*:*3.16.4sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.5as:*:*:*:*:*:*:*3.16.5asVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.5s:*:*:*:*:*:*:*3.16.5sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.6bs:*:*:*:*:*:*:*3.16.6bsVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.6s:*:*:*:*:*:*:*3.16.6sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.7bs:*:*:*:*:*:*:*3.16.7bsVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.7s:*:*:*:*:*:*:*3.16.7sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.8s:*:*:*:*:*:*:*3.16.8sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.17.0s:*:*:*:*:*:*:*3.17.0sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.17.1s:*:*:*:*:*:*:*3.17.1sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.17.3s:*:*:*:*:*:*:*3.17.3sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.17.4s:*:*:*:*:*:*:*3.17.4sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.0s:*:*:*:*:*:*:*3.18.0sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.0sp:*:*:*:*:*:*:*3.18.0spVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.1bsp:*:*:*:*:*:*:*3.18.1bspVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.1gsp:*:*:*:*:*:*:*3.18.1gspVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.1hsp:*:*:*:*:*:*:*3.18.1hspVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.1isp:*:*:*:*:*:*:*3.18.1ispVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.1s:*:*:*:*:*:*:*3.18.1sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.1sp:*:*:*:*:*:*:*3.18.1spVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.2s:*:*:*:*:*:*:*3.18.2sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.2sp:*:*:*:*:*:*:*3.18.2spVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.3s:*:*:*:*:*:*:*3.18.3sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.3sp:*:*:*:*:*:*:*3.18.3spVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.4s:*:*:*:*:*:*:*3.18.4sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.4sp:*:*:*:*:*:*:*3.18.4spVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:*16.5.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.5.2:*:*:*:*:*:*:*16.5.2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.5.3:*:*:*:*:*:*:*16.5.3VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:*16.6.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.6.2:*:*:*:*:*:*:*16.6.2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.6.3:*:*:*:*:*:*:*16.6.3VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.6.4:*:*:*:*:*:*:*16.6.4VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:*16.7.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.7.2:*:*:*:*:*:*:*16.7.2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:*16.8.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.8.1b:*:*:*:*:*:*:*16.8.1bVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.8.1c:*:*:*:*:*:*:*16.8.1cVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:3.16.4s:*:*:*:*:*:*:* Versions 3.16.4s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.5as:*:*:*:*:*:*:* Versions 3.16.5as Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.5s:*:*:*:*:*:*:* Versions 3.16.5s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.6bs:*:*:*:*:*:*:* Versions 3.16.6bs Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.6s:*:*:*:*:*:*:* Versions 3.16.6s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.7bs:*:*:*:*:*:*:* Versions 3.16.7bs Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.7s:*:*:*:*:*:*:* Versions 3.16.7s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.8s:*:*:*:*:*:*:* Versions 3.16.8s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.17.0s:*:*:*:*:*:*:* Versions 3.17.0s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.17.1s:*:*:*:*:*:*:* Versions 3.17.1s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.17.3s:*:*:*:*:*:*:* Versions 3.17.3s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.17.4s:*:*:*:*:*:*:* Versions 3.17.4s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.0s:*:*:*:*:*:*:* Versions 3.18.0s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.0sp:*:*:*:*:*:*:* Versions 3.18.0sp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.1bsp:*:*:*:*:*:*:* Versions 3.18.1bsp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.1gsp:*:*:*:*:*:*:* Versions 3.18.1gsp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.1hsp:*:*:*:*:*:*:* Versions 3.18.1hsp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.1isp:*:*:*:*:*:*:* Versions 3.18.1isp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.1s:*:*:*:*:*:*:* Versions 3.18.1s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.1sp:*:*:*:*:*:*:* Versions 3.18.1sp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.2s:*:*:*:*:*:*:* Versions 3.18.2s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.2sp:*:*:*:*:*:*:* Versions 3.18.2sp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.3s:*:*:*:*:*:*:* Versions 3.18.3s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.3sp:*:*:*:*:*:*:* Versions 3.18.3sp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.4s:*:*:*:*:*:*:* Versions 3.18.4s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.4sp:*:*:*:*:*:*:* Versions 3.18.4sp Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:* Versions 16.5.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.5.2:*:*:*:*:*:*:* Versions 16.5.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.5.3:*:*:*:*:*:*:* Versions 16.5.3 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:* Versions 16.6.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.6.2:*:*:*:*:*:*:* Versions 16.6.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.6.3:*:*:*:*:*:*:* Versions 16.6.3 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.6.4:*:*:*:*:*:*:* Versions 16.6.4 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:* Versions 16.7.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.7.2:*:*:*:*:*:*:* Versions 16.7.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:* Versions 16.8.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.8.1b:*:*:*:*:*:*:* Versions 16.8.1b Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.8.1c:*:*:*:*:*:*:* Versions 16.8.1c Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1749
  2. 2026-10-03 Alias added: GHSA-6v8f-xrrm-w3x9

References

Patch 1

  • TI-2023-06904 Cisco is providing an update for the ongoing investigation into observed exploitation of… KEVCVSS 3.1CRITICAL 10.0
  • TI-2018-00122 Memory corruption in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
  • TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04497 Memory corruption in Cisco IOS XE Software KEVCVSS 3.1HIGH 8.8
See all 561 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences