CVE-2023-20168
MEDIUM
6.5
CVSS Score
Published: August 23, 2023 at 06:07 PM UTC
Updated: June 17, 2026 at 05:29 AM UTC
84 products affected across 1 vendorNx OSNexus 9508Nexus 9516
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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.2%
Description
A vulnerability in TACACS+ and RADIUS remote authentication for Cisco NX-OS Software could allow an unauthenticated, local attacker to cause an affected device to unexpectedly reload. This vulnerability is due to incorrect input validation when processing an authentication attempt if the directed request option is enabled for TACACS+ or RADIUS. An attacker could exploit this vulnerability by entering a crafted string at the login prompt of an affected device. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a denial of service (DoS) condition.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
10.1(1)10.1(2)10.1(2t)10.2(1)10.2(1q)10.2(2)10.2(3)10.2(3t)10.2(4)10.2(5)10.3(1)10.3(2)4.2(1)SV1(4)4.2(1)SV1(4a)4.2(1)SV1(4b)4.2(1)SV1(5.1)4.2(1)SV1(5.1a)4.2(1)SV1(5.2)4.2(1)SV1(5.2b)4.2(1)SV2(1.1)4.2(1)SV2(1.1a)4.2(1)SV2(2.1)4.2(1)SV2(2.1a)4.2(1)SV2(2.2)4.2(1)SV2(2.3)5.2(1)SK3(1.1)5.2(1)SK3(2.1)5.2(1)SK3(2.1a)5.2(1)SK3(2.2)5.2(1)SK3(2.2b)5.2(1)SM1(5.1)5.2(1)SM1(5.2)5.2(1)SM1(5.2a)5.2(1)SM1(5.2b)5.2(1)SM1(5.2c)5.2(1)SM3(1.1)5.2(1)SM3(1.1a)5.2(1)SM3(1.1b)5.2(1)SM3(1.1c)5.2(1)SM3(2.1)5.2(1)SV3(1.1)5.2(1)SV3(1.10)5.2(1)SV3(1.15)5.2(1)SV3(1.2)5.2(1)SV3(1.3)5.2(1)SV3(1.4)5.2(1)SV3(1.4b)5.2(1)SV3(1.5a)5.2(1)SV3(1.5b)5.2(1)SV3(1.6)5.2(1)SV3(2.1)5.2(1)SV3(2.5)5.2(1)SV3(2.8)5.2(1)SV3(3.1)5.2(1)SV3(3.15)5.2(1)SV3(4.1)5.2(1)SV3(4.1a)5.2(1)SV3(4.1b)5.2(1)SV3(4.1c)5.2(1)SV5(1.1)5.2(1)SV5(1.2)5.2(1)SV5(1.3)5.2(1)SV5(1.3a)5.2(1)SV5(1.3b)5.2(1)SV5(1.3c)6.0(2)A3(1)6.0(2)A3(2)6.0(2)A3(4)6.0(2)A4(1)6.0(2)A4(2)6.0(2)A4(3)6.0(2)A4(4)6.0(2)A4(5)6.0(2)A4(6)6.0(2)A6(1)6.0(2)A6(1a)6.0(2)A6(2)6.0(2)A6(2a)6.0(2)A6(3)6.0(2)A6(3a)6.0(2)A6(4)6.0(2)A6(4a)6.0(2)A6(5)6.0(2)A6(5a)6.0(2)A6(5b)6.0(2)A6(6)6.0(2)A6(7)6.0(2)A6(8)6.0(2)A7(1)6.0(2)A7(1a)6.0(2)A7(2)6.0(2)A7(2a)6.0(2)A8(1)6.0(2)A8(10)6.0(2)A8(10a)6.0(2)A8(11)6.0(2)A8(11a)6.0(2)A8(11b)6.0(2)A8(2)6.0(2)A8(3)6.0(2)A8(4)6.0(2)A8(4a)6.0(2)A8(5)6.0(2)A8(6)6.0(2)A8(7)6.0(2)A8(7a)6.0(2)A8(7b)6.0(2)A8(8)6.0(2)A8(9)6.0(2)U2(1)6.0(2)U2(2)6.0(2)U2(3)6.0(2)U2(4)6.0(2)U2(5)6.0(2)U2(6)6.0(2)U3(1)6.0(2)U3(2)6.0(2)U3(3)6.0(2)U3(4)6.0(2)U3(5)6.0(2)U3(6)6.0(2)U3(7)6.0(2)U3(8)6.0(2)U3(9)6.0(2)U4(1)6.0(2)U4(2)6.0(2)U4(3)6.0(2)U4(4)6.0(2)U5(1)6.0(2)U5(2)6.0(2)U5(3)6.0(2)U5(4)6.0(2)U6(1)6.0(2)U6(10)6.0(2)U6(1a)6.0(2)U6(2)6.0(2)U6(2a)6.0(2)U6(3)6.0(2)U6(3a)6.0(2)U6(4)6.0(2)U6(4a)6.0(2)U6(5)6.0(2)U6(5a)6.0(2)U6(5b)6.0(2)U6(5c)6.0(2)U6(6)6.0(2)U6(7)6.0(2)U6(8)6.0(2)U6(9)6.2(1)6.2(10)6.2(11)6.2(11b)6.2(11c)6.2(11d)6.2(11e)6.2(12)6.2(13)6.2(13a)6.2(13b)6.2(14)6.2(15)6.2(16)6.2(17)6.2(18)6.2(19)6.2(2)6.2(20)6.2(20a)6.2(21)6.2(22)6.2(23)6.2(24)6.2(24a)6.2(25)6.2(27)6.2(29)6.2(2a)6.2(3)6.2(31)6.2(33)6.2(5)6.2(5a)6.2(5b)6.2(6)6.2(6a)6.2(6b)6.2(7)6.2(8)6.2(8a)6.2(8b)6.2(9)6.2(9a)6.2(9b)6.2(9c)7.0(3)F1(1)7.0(3)F2(1)7.0(3)F2(2)7.0(3)F3(1)7.0(3)F3(2)7.0(3)F3(3)7.0(3)F3(3a)7.0(3)F3(3c)7.0(3)F3(4)7.0(3)F3(5)7.0(3)I2(1)7.0(3)I2(1a)7.0(3)I2(2)7.0(3)I2(2a)7.0(3)I2(2b)7.0(3)I2(2c)7.0(3)I2(2d)7.0(3)I2(2e)7.0(3)I2(3)7.0(3)I2(4)7.0(3)I2(5)7.0(3)I3(1)7.0(3)I4(1)7.0(3)I4(2)7.0(3)I4(3)7.0(3)I4(4)7.0(3)I4(5)7.0(3)I4(6)7.0(3)I4(7)7.0(3)I4(8)7.0(3)I4(8a)7.0(3)I4(8b)7.0(3)I4(8z)7.0(3)I4(9)7.0(3)I5(1)7.0(3)I5(2)7.0(3)I6(1)7.0(3)I6(2)7.0(3)I7(1)7.0(3)I7(10)7.0(3)I7(2)7.0(3)I7(3)7.0(3)I7(4)7.0(3)I7(5)7.0(3)I7(5a)7.0(3)I7(6)7.0(3)I7(7)7.0(3)I7(8)7.0(3)I7(9)7.1(0)N1(1)7.1(0)N1(1a)7.1(0)N1(1b)7.1(1)N1(1)7.1(2)N1(1)7.1(3)N1(1)7.1(3)N1(2)7.1(4)N1(1)7.1(5)N1(1)7.1(5)N1(1b)7.2(0)D1(1)7.2(1)D1(1)7.2(2)D1(1)7.2(2)D1(2)7.3(0)D1(1)7.3(0)DX(1)7.3(0)DY(1)7.3(0)N1(1)7.3(1)D1(1)7.3(1)DY(1)7.3(1)N1(1)7.3(10)N1(1)7.3(11)N1(1)7.3(12)N1(1)7.3(13)N1(1)7.3(2)D1(1)7.3(2)D1(2)7.3(2)D1(3)7.3(2)D1(3a)7.3(2)N1(1)7.3(3)D1(1)7.3(3)N1(1)7.3(4)D1(1)7.3(4)N1(1)7.3(5)D1(1)7.3(5)N1(1)7.3(6)D1(1)7.3(6)N1(1)7.3(7)D1(1)7.3(7)N1(1)7.3(7)N1(1a)7.3(7)N1(1b)7.3(8)D1(1)7.3(8)N1(1)7.3(9)D1(1)7.3(9)N1(1)8.0(1)8.1(1)8.1(1a)8.1(1b)8.1(2)8.1(2a)8.2(1)8.2(2)8.2(3)8.2(4)8.2(5)8.2(6)8.2(7)8.2(7a)8.2(8)8.2(9)8.3(1)8.3(2)8.4(1)8.4(1a)8.4(2)8.4(2a)8.4(2b)8.4(2c)8.4(2d)8.4(2e)8.4(2f)8.4(3)8.4(4)8.4(4a)8.4(5)8.4(6)8.4(6a)8.4(7)8.5(1)9.2(1)9.2(1a)9.2(2)9.2(2t)9.2(2v)9.2(3)9.2(4)9.3(1)9.3(10)9.3(11)9.3(2)9.3(3)9.3(4)9.3(5)9.3(6)9.3(7)9.3(7a)9.3(8)9.3(9)
cisco-mds-9000 (environment) · cisco-mds-9100 (environment) · cisco-mds-9132t (environment) · cisco-mds-9134 (environment) · cisco-mds-9140 (environment) · cisco-mds-9148 (environment) · cisco-mds-9148s (environment) · cisco-mds-9148t (environment) · cisco-mds-9200 (environment) · cisco-mds-9216 (environment) · cisco-mds-9216a (environment) · cisco-mds-9216i (environment) · cisco-mds-9222i (environment) · cisco-mds-9250i (environment) · cisco-mds-9396s (environment) · cisco-mds-9396t (environment) · cisco-mds-9500 (environment) · cisco-mds-9506 (environment) · cisco-mds-9509 (environment) · cisco-mds-9513 (environment) · cisco-mds-9700 (environment) · cisco-mds-9706 (environment) · cisco-mds-9710 (environment) · cisco-mds-9718 (environment) · cisco-nexus-1000-virtual-edge (environment) · cisco-nexus-1000v (environment) · cisco-nexus-3048 (environment) · cisco-nexus-31108pc-v (environment) · cisco-nexus-31108tc-v (environment) · cisco-nexus-31128pq (environment) · cisco-nexus-3132c-z (environment) · cisco-nexus-3132q-v (environment) · cisco-nexus-3132q-xl (environment) · cisco-nexus-3164q (environment) · cisco-nexus-3172pq (environment) · cisco-nexus-3172pq-xl (environment) · cisco-nexus-3172tq (environment) · cisco-nexus-3172tq-32t (environment) · cisco-nexus-3172tq-xl (environment) · cisco-nexus-3232 (environment) · cisco-nexus-3264c-e (environment) · cisco-nexus-3264q (environment) · cisco-nexus-3408-s (environment) · cisco-nexus-34180yc (environment) · cisco-nexus-34200yc-sm (environment) · cisco-nexus-3432d-s (environment) · cisco-nexus-3464c (environment) · cisco-nexus-3524 (environment) · cisco-nexus-3524-x (environment) · cisco-nexus-3524-xl (environment) · cisco-nexus-3548 (environment) · cisco-nexus-3548-x (environment) · cisco-nexus-3548-xl (environment) · cisco-nexus-36180yc-r (environment) · cisco-nexus-5500 (environment) · cisco-nexus-5548p (environment) · cisco-nexus-5548up (environment) · cisco-nexus-5596t (environment) · cisco-nexus-5596up (environment) · cisco-nexus-5600 (environment) · cisco-nexus-56128p (environment) · cisco-nexus-5624q (environment) · cisco-nexus-5648q (environment) · cisco-nexus-5672up (environment) · cisco-nexus-5672up-16g (environment) · cisco-nexus-5696q (environment) · cisco-nexus-6000 (environment) · cisco-nexus-6001 (environment) · cisco-nexus-6001p (environment) · cisco-nexus-6001t (environment) · cisco-nexus-6004 (environment) · cisco-nexus-6004x (environment) · cisco-nexus-7000 (environment) · cisco-nexus-7004 (environment) · cisco-nexus-7009 (environment) · cisco-nexus-7010 (environment) · cisco-nexus-7018 (environment) · cisco-nexus-9232e (environment) · cisco-nexus-92348gc-x (environment) · cisco-nexus-9408 (environment) · cisco-nexus-9504 (environment) · cisco-nexus-9508 (environment) · cisco-nexus-9516 (environment)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-120CWE-20
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