CVE-2019-1752

Cisco IOS and IOS XE Software ISDN Interface Denial of Service Vulnerability

HIGH
7.5
CVSS Score
Published: March 28, 2019 at 12:05 AM UTC
Updated: June 17, 2026 at 02:29 AM UTC
2 products affected across 1 vendorIOSIOS Xe

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Severity
HIGH7.5
Exploit prediction
EPSS 3%

Description

A vulnerability in the ISDN functions of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload. The vulnerability is due to incorrect processing of specific values in the Q.931 information elements. An attacker could exploit this vulnerability by calling the affected device with specific Q.931 information elements being present. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition on an affected device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

15.0(1)m15.0(1)m115.0(1)m1015.0(1)m215.0(1)m315.0(1)m415.0(1)m515.0(1)m615.0(1)m6a15.0(1)m715.0(1)m815.0(1)m915.0(1)xa15.0(1)xa115.0(1)xa215.0(1)xa315.0(1)xa415.0(1)xa515.1(1)t15.1(1)t115.1(1)t215.1(1)t315.1(1)t415.1(1)t515.1(1)xb15.1(1)xb115.1(1)xb215.1(1)xb315.1(2)gc15.1(2)gc115.1(2)gc215.1(2)t15.1(2)t0a15.1(2)t115.1(2)t215.1(2)t2a15.1(2)t315.1(2)t415.1(2)t515.1(3)t15.1(3)t115.1(3)t215.1(3)t315.1(3)t415.1(4)gc15.1(4)gc115.1(4)gc215.1(4)m15.1(4)m0a15.1(4)m0b15.1(4)m115.1(4)m1015.1(4)m12a15.1(4)m12c15.1(4)m215.1(4)m315.1(4)m3a15.1(4)m415.1(4)m515.1(4)m615.1(4)m715.1(4)m815.1(4)m915.1(4)xb415.1(4)xb515.1(4)xb5a15.1(4)xb615.1(4)xb715.1(4)xb815.1(4)xb8a15.2(1)gc15.2(1)gc115.2(1)gc215.2(2)gc15.2(3)gc15.2(3)gc115.2(4)gc15.2(4)gc115.2(4)gc215.2(4)gc315.2(4)m15.2(4)m115.2(4)m1015.2(4)m1115.2(4)m215.2(4)m315.2(4)m415.2(4)m515.2(4)m615.2(4)m6a15.2(4)m6b15.2(4)m715.2(4)m815.2(4)m915.3(1)t15.3(1)t115.3(1)t215.3(1)t315.3(1)t415.3(2)t15.3(2)t115.3(2)t215.3(2)t315.3(2)t415.3(3)m15.3(3)m115.3(3)m1015.3(3)m215.3(3)m315.3(3)m415.3(3)m515.3(3)m615.3(3)m715.3(3)m815.3(3)m8a15.3(3)m915.3(3)xb1215.4(1)cg15.4(1)cg115.4(1)t15.4(1)t115.4(1)t215.4(1)t315.4(1)t415.4(2)cg15.4(2)s315.4(2)t15.4(2)t115.4(2)t215.4(2)t315.4(2)t415.4(3)m15.4(3)m115.4(3)m1015.4(3)m215.4(3)m315.4(3)m415.4(3)m515.4(3)m615.4(3)m6a15.4(3)m715.4(3)m7a15.4(3)m815.4(3)m915.5(1)t15.5(1)t115.5(1)t215.5(1)t315.5(1)t415.5(2)t15.5(2)t115.5(2)t215.5(2)t315.5(2)t415.5(2)xb15.5(3)m15.5(3)m115.5(3)m215.5(3)m2a15.5(3)m315.5(3)m415.5(3)m4a15.5(3)m4b15.5(3)m4c15.5(3)m515.5(3)m5a15.6(1)t15.6(1)t0a15.6(1)t115.6(1)t215.6(1)t315.6(2)t15.6(2)t115.6(2)t215.6(2)t315.6(3)m15.6(3)m0a15.6(3)m115.6(3)m1a15.6(3)m1b15.6(3)m215.6(3)m2a15.6(3)m315.6(3)m3a15.6(3)m415.6(3)m515.7(3)m15.7(3)m0a15.7(3)m115.7(3)m215.7(3)m315.8(3)m15.8(3)m0a
16.2.116.2.216.3.116.3.1a16.3.216.3.316.3.416.3.516.3.616.3.716.4.116.4.216.4.316.5.116.5.1b16.5.216.5.316.6.116.6.216.6.316.6.416.6.4s16.7.116.7.1a16.7.1b16.7.216.7.316.8.116.8.1d16.8.1s3.10.0S3.10.0s3.10.10S3.10.10s3.10.1S3.10.1s3.10.2S3.10.2aS3.10.2as3.10.2s3.10.2tS3.10.2ts3.10.3S3.10.3s3.10.4S3.10.4s3.10.5S3.10.5s3.10.6S3.10.6s3.10.7S3.10.7s3.10.8S3.10.8aS3.10.8as3.10.8s3.10.9S3.10.9s3.11.0S3.11.0s3.11.1S3.11.1s3.11.2S3.11.2s3.11.3S3.11.3s3.11.4S3.11.4s3.12.0S3.12.0aS3.12.0as3.12.0s3.12.1S3.12.1s3.12.2S3.12.2s3.12.3S3.12.3s3.12.4S3.12.4s3.13.0S3.13.0s3.13.10S3.13.10s3.13.1S3.13.1s3.13.2S3.13.2aS3.13.2as3.13.2s3.13.3S3.13.3s3.13.4S3.13.4s3.13.5S3.13.5aS3.13.5as3.13.5s3.13.6S3.13.6aS3.13.6as3.13.6bS3.13.6bs3.13.6s3.13.7S3.13.7aS3.13.7as3.13.7s3.13.8S3.13.8s3.13.9S3.13.9s3.14.0S3.14.0s3.14.1S3.14.1s3.14.2S3.14.2s3.14.3S3.14.3s3.14.4S3.14.4s3.15.0S3.15.0s3.15.1S3.15.1cS3.15.1cs3.15.1s3.15.2S3.15.2s3.15.3S3.15.3s3.15.4S3.15.4s3.16.0S3.16.0bS3.16.0bs3.16.0cS3.16.0cs3.16.0s3.16.1S3.16.1aS3.16.1as3.16.1s3.16.2S3.16.2bS3.16.2bs3.16.2s3.16.3S3.16.3s3.16.4aS3.16.4as3.16.4bS3.16.4bs3.16.4cS3.16.4cs3.16.4dS3.16.4ds3.16.4eS3.16.4es3.16.4gS3.16.4gs3.16.5S3.16.5aS3.16.5as3.16.5bS3.16.5bs3.16.5s3.16.6S3.16.6bS3.16.6bs3.16.6s3.16.7S3.16.7aS3.16.7as3.16.7bS3.16.7bs3.16.7s3.16.8S3.16.8s3.17.0S3.17.0s3.17.1S3.17.1aS3.17.1as3.17.1s3.17.2S3.17.3S3.17.3s3.17.4S3.17.4s3.18.0SP3.18.0aS3.18.0as3.18.0sp3.18.1S3.18.1SP3.18.1aSP3.18.1asp3.18.1s3.18.1sp3.18.2aSP3.18.2asp3.18.3SP3.18.3aSP3.18.3asp3.18.3bSP3.18.3bsp3.18.3sp3.18.4SP3.18.4sp3.18.5SP3.18.5sp3.8.0S3.8.0s3.8.1S3.8.1s3.8.2S3.8.2s3.9.0S3.9.0aS3.9.0as3.9.0s3.9.1S3.9.1aS3.9.1as3.9.1s3.9.2S3.9.2s

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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