5.6

CVE-2024-20309

A vulnerability in auxiliary asynchronous port (AUX) functions of Cisco IOS XE Software could allow an authenticated, local attacker to cause an affected device to reload or stop responding.

 This vulnerability is due to the incorrect handling of specific ingress traffic when flow control hardware is enabled on the AUX port. An attacker could exploit this vulnerability by reverse telnetting to the AUX port and sending specific data after connecting. A successful exploit could allow the attacker to cause the device to reset or stop responding, resulting in a denial of service (DoS) condition.
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Cisco ≫ Ios Xe Version3.2.0se
Cisco ≫ Ios Xe Version3.2.1se
Cisco ≫ Ios Xe Version3.2.2se
Cisco ≫ Ios Xe Version3.2.3se
Cisco ≫ Ios Xe Version3.3.0se
Cisco ≫ Ios Xe Version3.3.0sq
Cisco ≫ Ios Xe Version3.3.1se
Cisco ≫ Ios Xe Version3.3.1sq
Cisco ≫ Ios Xe Version3.3.2se
Cisco ≫ Ios Xe Version3.3.3se
Cisco ≫ Ios Xe Version3.3.4se
Cisco ≫ Ios Xe Version3.3.5se
Cisco ≫ Ios Xe Version3.4.0sq
Cisco ≫ Ios Xe Version3.4.1sq
Cisco ≫ Ios Xe Version3.5.0sq
Cisco ≫ Ios Xe Version3.5.1sq
Cisco ≫ Ios Xe Version3.5.2sq
Cisco ≫ Ios Xe Version3.5.3sq
Cisco ≫ Ios Xe Version3.5.4sq
Cisco ≫ Ios Xe Version3.5.5sq
Cisco ≫ Ios Xe Version3.5.6sq
Cisco ≫ Ios Xe Version3.5.7sq
Cisco ≫ Ios Xe Version3.5.8sq
Cisco ≫ Ios Xe Version3.6.2ae
Cisco ≫ Ios Xe Version3.6.2e
Cisco ≫ Ios Xe Version3.6.5be
Cisco ≫ Ios Xe Version3.6.7be
Cisco ≫ Ios Xe Version3.6.9e
Cisco ≫ Ios Xe Version3.6.10e
Cisco ≫ Ios Xe Version3.7.0bs
Cisco ≫ Ios Xe Version3.7.0s
Cisco ≫ Ios Xe Version3.7.1as
Cisco ≫ Ios Xe Version3.7.1s
Cisco ≫ Ios Xe Version3.7.2s
Cisco ≫ Ios Xe Version3.7.2ts
Cisco ≫ Ios Xe Version3.7.3s
Cisco ≫ Ios Xe Version3.7.4as
Cisco ≫ Ios Xe Version3.7.4s
Cisco ≫ Ios Xe Version3.7.5s
Cisco ≫ Ios Xe Version3.7.6s
Cisco ≫ Ios Xe Version3.7.7s
Cisco ≫ Ios Xe Version3.8.0s
Cisco ≫ Ios Xe Version3.8.1s
Cisco ≫ Ios Xe Version3.8.2s
Cisco ≫ Ios Xe Version3.9.0as
Cisco ≫ Ios Xe Version3.9.0s
Cisco ≫ Ios Xe Version3.9.1as
Cisco ≫ Ios Xe Version3.9.1s
Cisco ≫ Ios Xe Version3.9.2s
Cisco ≫ Ios Xe Version3.10.0s
Cisco ≫ Ios Xe Version3.10.1s
Cisco ≫ Ios Xe Version3.10.1xbs
Cisco ≫ Ios Xe Version3.10.2s
Cisco ≫ Ios Xe Version3.10.2ts
Cisco ≫ Ios Xe Version3.10.3s
Cisco ≫ Ios Xe Version3.10.4s
Cisco ≫ Ios Xe Version3.10.5s
Cisco ≫ Ios Xe Version3.10.6s
Cisco ≫ Ios Xe Version3.10.7s
Cisco ≫ Ios Xe Version3.10.8as
Cisco ≫ Ios Xe Version3.10.8s
Cisco ≫ Ios Xe Version3.10.9s
Cisco ≫ Ios Xe Version3.10.10s
Cisco ≫ Ios Xe Version3.11.0s
Cisco ≫ Ios Xe Version3.11.1s
Cisco ≫ Ios Xe Version3.11.2s
Cisco ≫ Ios Xe Version3.11.3s
Cisco ≫ Ios Xe Version3.11.4s
Cisco ≫ Ios Xe Version3.12.0as
Cisco ≫ Ios Xe Version3.12.0s
Cisco ≫ Ios Xe Version3.12.1s
Cisco ≫ Ios Xe Version3.12.2s
Cisco ≫ Ios Xe Version3.12.3s
Cisco ≫ Ios Xe Version3.12.4s
Cisco ≫ Ios Xe Version3.13.0as
Cisco ≫ Ios Xe Version3.13.0s
Cisco ≫ Ios Xe Version3.13.1s
Cisco ≫ Ios Xe Version3.13.2as
Cisco ≫ Ios Xe Version3.13.2s
Cisco ≫ Ios Xe Version3.13.3s
Cisco ≫ Ios Xe Version3.13.4s
Cisco ≫ Ios Xe Version3.13.5as
Cisco ≫ Ios Xe Version3.13.5s
Cisco ≫ Ios Xe Version3.13.6as
Cisco ≫ Ios Xe Version3.13.6s
Cisco ≫ Ios Xe Version3.13.7as
Cisco ≫ Ios Xe Version3.13.7s
Cisco ≫ Ios Xe Version3.13.8s
Cisco ≫ Ios Xe Version3.13.9s
Cisco ≫ Ios Xe Version3.13.10s
Cisco ≫ Ios Xe Version3.14.0s
Cisco ≫ Ios Xe Version3.14.1s
Cisco ≫ Ios Xe Version3.14.2s
Cisco ≫ Ios Xe Version3.14.3s
Cisco ≫ Ios Xe Version3.14.4s
Cisco ≫ Ios Xe Version3.15.0s
Cisco ≫ Ios Xe Version3.15.1cs
Cisco ≫ Ios Xe Version3.15.1s
Cisco ≫ Ios Xe Version3.15.2s
Cisco ≫ Ios Xe Version3.15.3s
Cisco ≫ Ios Xe Version3.15.4s
Cisco ≫ Ios Xe Version3.16.0cs
Cisco ≫ Ios Xe Version3.16.0s
Cisco ≫ Ios Xe Version3.16.1as
Cisco ≫ Ios Xe Version3.16.1s
Cisco ≫ Ios Xe Version3.16.2as
Cisco ≫ Ios Xe Version3.16.2bs
Cisco ≫ Ios Xe Version3.16.2s
Cisco ≫ Ios Xe Version3.16.3as
Cisco ≫ Ios Xe Version3.16.3s
Cisco ≫ Ios Xe Version3.16.4as
Cisco ≫ Ios Xe Version3.16.4bs
Cisco ≫ Ios Xe Version3.16.4ds
Cisco ≫ Ios Xe Version3.16.4s
Cisco ≫ Ios Xe Version3.16.5s
Cisco ≫ Ios Xe Version3.16.6bs
Cisco ≫ Ios Xe Version3.16.6s
Cisco ≫ Ios Xe Version3.16.7as
Cisco ≫ Ios Xe Version3.16.7bs
Cisco ≫ Ios Xe Version3.16.7s
Cisco ≫ Ios Xe Version3.16.8s
Cisco ≫ Ios Xe Version3.16.9s
Cisco ≫ Ios Xe Version3.16.10s
Cisco ≫ Ios Xe Version3.17.0s
Cisco ≫ Ios Xe Version3.17.1as
Cisco ≫ Ios Xe Version3.17.1s
Cisco ≫ Ios Xe Version3.17.2s
Cisco ≫ Ios Xe Version3.17.3s
Cisco ≫ Ios Xe Version3.17.4s
Cisco ≫ Ios Xe Version3.18.0as
Cisco ≫ Ios Xe Version3.18.0s
Cisco ≫ Ios Xe Version3.18.0sp
Cisco ≫ Ios Xe Version3.18.1asp
Cisco ≫ Ios Xe Version3.18.1bsp
Cisco ≫ Ios Xe Version3.18.1csp
Cisco ≫ Ios Xe Version3.18.1s
Cisco ≫ Ios Xe Version3.18.1sp
Cisco ≫ Ios Xe Version3.18.2asp
Cisco ≫ Ios Xe Version3.18.2s
Cisco ≫ Ios Xe Version3.18.2sp
Cisco ≫ Ios Xe Version3.18.3asp
Cisco ≫ Ios Xe Version3.18.3bsp
Cisco ≫ Ios Xe Version3.18.3s
Cisco ≫ Ios Xe Version3.18.3sp
Cisco ≫ Ios Xe Version3.18.4s
Cisco ≫ Ios Xe Version3.18.4sp
Cisco ≫ Ios Xe Version3.18.5sp
Cisco ≫ Ios Xe Version3.18.6sp
Cisco ≫ Ios Xe Version3.18.7sp
Cisco ≫ Ios Xe Version3.18.8asp
Cisco ≫ Ios Xe Version3.18.9sp
Cisco ≫ Ios Xe Version16.1.1
Cisco ≫ Ios Xe Version16.1.2
Cisco ≫ Ios Xe Version16.1.3
Cisco ≫ Ios Xe Version16.2.1
Cisco ≫ Ios Xe Version16.2.2
Cisco ≫ Ios Xe Version16.3.1
Cisco ≫ Ios Xe Version16.3.1a
Cisco ≫ Ios Xe Version16.3.2
Cisco ≫ Ios Xe Version16.3.3
Cisco ≫ Ios Xe Version16.3.4
Cisco ≫ Ios Xe Version16.3.5
Cisco ≫ Ios Xe Version16.3.5b
Cisco ≫ Ios Xe Version16.3.6
Cisco ≫ Ios Xe Version16.3.7
Cisco ≫ Ios Xe Version16.3.8
Cisco ≫ Ios Xe Version16.3.9
Cisco ≫ Ios Xe Version16.3.10
Cisco ≫ Ios Xe Version16.3.11
Cisco ≫ Ios Xe Version16.4.1
Cisco ≫ Ios Xe Version16.4.2
Cisco ≫ Ios Xe Version16.4.3
Cisco ≫ Ios Xe Version16.5.1
Cisco ≫ Ios Xe Version16.5.1a
Cisco ≫ Ios Xe Version16.5.1b
Cisco ≫ Ios Xe Version16.5.2
Cisco ≫ Ios Xe Version16.5.3
Cisco ≫ Ios Xe Version16.6.1
Cisco ≫ Ios Xe Version16.6.2
Cisco ≫ Ios Xe Version16.6.3
Cisco ≫ Ios Xe Version16.6.4
Cisco ≫ Ios Xe Version16.6.4a
Cisco ≫ Ios Xe Version16.6.5
Cisco ≫ Ios Xe Version16.6.5a
Cisco ≫ Ios Xe Version16.6.6
Cisco ≫ Ios Xe Version16.6.7
Cisco ≫ Ios Xe Version16.6.8
Cisco ≫ Ios Xe Version16.6.9
Cisco ≫ Ios Xe Version16.6.10
Cisco ≫ Ios Xe Version16.7.1
Cisco ≫ Ios Xe Version16.7.1a
Cisco ≫ Ios Xe Version16.7.1b
Cisco ≫ Ios Xe Version16.7.2
Cisco ≫ Ios Xe Version16.7.3
Cisco ≫ Ios Xe Version16.7.4
Cisco ≫ Ios Xe Version16.8.1
Cisco ≫ Ios Xe Version16.8.1a
Cisco ≫ Ios Xe Version16.8.1b
Cisco ≫ Ios Xe Version16.8.1c
Cisco ≫ Ios Xe Version16.8.1d
Cisco ≫ Ios Xe Version16.8.1e
Cisco ≫ Ios Xe Version16.8.1s
Cisco ≫ Ios Xe Version16.8.2
Cisco ≫ Ios Xe Version16.8.3
Cisco ≫ Ios Xe Version16.9.1
Cisco ≫ Ios Xe Version16.9.1a
Cisco ≫ Ios Xe Version16.9.1b
Cisco ≫ Ios Xe Version16.9.1s
Cisco ≫ Ios Xe Version16.9.2
Cisco ≫ Ios Xe Version16.9.3
Cisco ≫ Ios Xe Version16.9.3a
Cisco ≫ Ios Xe Version16.9.4
Cisco ≫ Ios Xe Version16.9.5
Cisco ≫ Ios Xe Version16.9.5f
Cisco ≫ Ios Xe Version16.9.6
Cisco ≫ Ios Xe Version16.9.7
Cisco ≫ Ios Xe Version16.9.8
Cisco ≫ Ios Xe Version16.10.1
Cisco ≫ Ios Xe Version16.10.1a
Cisco ≫ Ios Xe Version16.10.1b
Cisco ≫ Ios Xe Version16.10.1c
Cisco ≫ Ios Xe Version16.10.1d
Cisco ≫ Ios Xe Version16.10.1e
Cisco ≫ Ios Xe Version16.10.1f
Cisco ≫ Ios Xe Version16.10.1g
Cisco ≫ Ios Xe Version16.10.1s
Cisco ≫ Ios Xe Version16.10.2
Cisco ≫ Ios Xe Version16.10.3
Cisco ≫ Ios Xe Version16.11.1
Cisco ≫ Ios Xe Version16.11.1a
Cisco ≫ Ios Xe Version16.11.1b
Cisco ≫ Ios Xe Version16.11.1s
Cisco ≫ Ios Xe Version16.11.2
Cisco ≫ Ios Xe Version16.12.1
Cisco ≫ Ios Xe Version16.12.1a
Cisco ≫ Ios Xe Version16.12.1c
Cisco ≫ Ios Xe Version16.12.1s
Cisco ≫ Ios Xe Version16.12.1t
Cisco ≫ Ios Xe Version16.12.1w
Cisco ≫ Ios Xe Version16.12.1x
Cisco ≫ Ios Xe Version16.12.1y
Cisco ≫ Ios Xe Version16.12.1z1
Cisco ≫ Ios Xe Version16.12.1z2
Cisco ≫ Ios Xe Version16.12.2
Cisco ≫ Ios Xe Version16.12.2a
Cisco ≫ Ios Xe Version16.12.2s
Cisco ≫ Ios Xe Version16.12.3
Cisco ≫ Ios Xe Version16.12.3a
Cisco ≫ Ios Xe Version16.12.3s
Cisco ≫ Ios Xe Version16.12.4
Cisco ≫ Ios Xe Version16.12.4a
Cisco ≫ Ios Xe Version16.12.5
Cisco ≫ Ios Xe Version16.12.5a
Cisco ≫ Ios Xe Version16.12.5b
Cisco ≫ Ios Xe Version16.12.6
Cisco ≫ Ios Xe Version16.12.6a
Cisco ≫ Ios Xe Version16.12.7
Cisco ≫ Ios Xe Version16.12.8
Cisco ≫ Ios Xe Version16.12.9
Cisco ≫ Ios Xe Version16.12.10
Cisco ≫ Ios Xe Version16.12.10a
Cisco ≫ Ios Xe Version17.1.1
Cisco ≫ Ios Xe Version17.1.1a
Cisco ≫ Ios Xe Version17.1.1s
Cisco ≫ Ios Xe Version17.1.1t
Cisco ≫ Ios Xe Version17.1.3
Cisco ≫ Ios Xe Version17.2.1
Cisco ≫ Ios Xe Version17.2.1a
Cisco ≫ Ios Xe Version17.2.1r
Cisco ≫ Ios Xe Version17.2.1v
Cisco ≫ Ios Xe Version17.2.2
Cisco ≫ Ios Xe Version17.2.3
Cisco ≫ Ios Xe Version17.3.1
Cisco ≫ Ios Xe Version17.3.1a
Cisco ≫ Ios Xe Version17.3.1w
Cisco ≫ Ios Xe Version17.3.1x
Cisco ≫ Ios Xe Version17.3.1z
Cisco ≫ Ios Xe Version17.3.2
Cisco ≫ Ios Xe Version17.3.2a
Cisco ≫ Ios Xe Version17.3.3
Cisco ≫ Ios Xe Version17.3.4
Cisco ≫ Ios Xe Version17.3.4a
Cisco ≫ Ios Xe Version17.3.4b
Cisco ≫ Ios Xe Version17.3.4c
Cisco ≫ Ios Xe Version17.3.5
Cisco ≫ Ios Xe Version17.3.5a
Cisco ≫ Ios Xe Version17.3.5b
Cisco ≫ Ios Xe Version17.3.6
Cisco ≫ Ios Xe Version17.3.7
Cisco ≫ Ios Xe Version17.3.8
Cisco ≫ Ios Xe Version17.3.8a
Cisco ≫ Ios Xe Version17.4.1
Cisco ≫ Ios Xe Version17.4.1a
Cisco ≫ Ios Xe Version17.4.1b
Cisco ≫ Ios Xe Version17.4.2
Cisco ≫ Ios Xe Version17.4.2a
Cisco ≫ Ios Xe Version17.5.1
Cisco ≫ Ios Xe Version17.5.1a
Cisco ≫ Ios Xe Version17.6.1
Cisco ≫ Ios Xe Version17.6.1a
Cisco ≫ Ios Xe Version17.6.1w
Cisco ≫ Ios Xe Version17.6.1x
Cisco ≫ Ios Xe Version17.6.1y
Cisco ≫ Ios Xe Version17.6.1z
Cisco ≫ Ios Xe Version17.6.1z1
Cisco ≫ Ios Xe Version17.6.2
Cisco ≫ Ios Xe Version17.6.3
Cisco ≫ Ios Xe Version17.6.3a
Cisco ≫ Ios Xe Version17.6.4
Cisco ≫ Ios Xe Version17.6.5
Cisco ≫ Ios Xe Version17.6.5a
Cisco ≫ Ios Xe Version17.6.6
Cisco ≫ Ios Xe Version17.6.6a
Cisco ≫ Ios Xe Version17.7.1
Cisco ≫ Ios Xe Version17.7.1a
Cisco ≫ Ios Xe Version17.7.1b
Cisco ≫ Ios Xe Version17.7.2
Cisco ≫ Ios Xe Version17.8.1
Cisco ≫ Ios Xe Version17.8.1a
Cisco ≫ Ios Xe Version17.9.1
Cisco ≫ Ios Xe Version17.9.1a
Cisco ≫ Ios Xe Version17.9.1w
Cisco ≫ Ios Xe Version17.9.1x
Cisco ≫ Ios Xe Version17.9.1x1
Cisco ≫ Ios Xe Version17.9.1y
Cisco ≫ Ios Xe Version17.9.1y1
Cisco ≫ Ios Xe Version17.9.2
Cisco ≫ Ios Xe Version17.9.2a
Cisco ≫ Ios Xe Version17.9.3
Cisco ≫ Ios Xe Version17.9.3a
Cisco ≫ Ios Xe Version17.9.4
Cisco ≫ Ios Xe Version17.9.4a
Cisco ≫ Ios Xe Version17.10.1
Cisco ≫ Ios Xe Version17.10.1a
Cisco ≫ Ios Xe Version17.10.1b
Cisco ≫ Ios Xe Version17.11.1
Cisco ≫ Ios Xe Version17.11.1a
Cisco ≫ Ios Xe Version17.11.99sw
Cisco ≫ Ios Xe Version17.12.1
Cisco ≫ Ios Xe Version17.12.1a
Cisco ≫ Ios Xe Version17.12.1w
Cisco ≫ Ios Xe Version17.12.2
Cisco ≫ Ios Xe Version17.12.2a
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.102
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
psirt@cisco.com 5.6 1.1 4
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE-828 Signal Handler with Functionality that is not Asynchronous-Safe

The product defines a signal handler that contains code sequences that are not asynchronous-safe, i.e., the functionality is not reentrant, or it can be interrupted.