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CVE-2019-1752

HIGHCVSS 7.5/10EPSS 2.52%

Last modified

CVE-2019-1752 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.52% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
2.52%

82.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos15.0\(1\)m
CiscoIos15.0\(1\)m1
CiscoIos15.0\(1\)m2
CiscoIos15.0\(1\)m3
CiscoIos15.0\(1\)m4
CiscoIos15.0\(1\)m5
CiscoIos15.0\(1\)m6
CiscoIos15.0\(1\)m6a
CiscoIos15.0\(1\)m7
CiscoIos15.0\(1\)m8
CiscoIos15.0\(1\)m9
CiscoIos15.0\(1\)m10
CiscoIos15.0\(1\)xa
CiscoIos15.0\(1\)xa1
CiscoIos15.0\(1\)xa2
CiscoIos15.0\(1\)xa3
CiscoIos15.0\(1\)xa4
CiscoIos15.0\(1\)xa5
CiscoIos15.1\(1\)t
CiscoIos15.1\(1\)t1
CiscoIos15.1\(1\)t2
CiscoIos15.1\(1\)t3
CiscoIos15.1\(1\)t4
CiscoIos15.1\(1\)t5
CiscoIos15.1\(1\)xb
CiscoIos15.1\(1\)xb1
CiscoIos15.1\(1\)xb2
CiscoIos15.1\(1\)xb3
CiscoIos15.1\(2\)gc
CiscoIos15.1\(2\)gc1
CiscoIos15.1\(2\)gc2
CiscoIos15.1\(2\)t
CiscoIos15.1\(2\)t0a
CiscoIos15.1\(2\)t1
CiscoIos15.1\(2\)t2
CiscoIos15.1\(2\)t2a
CiscoIos15.1\(2\)t3
CiscoIos15.1\(2\)t4
CiscoIos15.1\(2\)t5
CiscoIos15.1\(3\)t
CiscoIos15.1\(3\)t1
CiscoIos15.1\(3\)t2
CiscoIos15.1\(3\)t3
CiscoIos15.1\(3\)t4
CiscoIos15.1\(4\)gc
CiscoIos15.1\(4\)gc1
CiscoIos15.1\(4\)gc2
CiscoIos15.1\(4\)m
CiscoIos15.1\(4\)m0a
CiscoIos15.1\(4\)m0b

Showing 50 of 322 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-1752?
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.
How severe is CVE-2019-1752?
CVE-2019-1752 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.52% probability of exploitation in the next 30 days.
How do I fix CVE-2019-1752?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1752?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST