CVE-2024-20294: cisco cisco firepower extensible operating system (fxos)
Vulnerability summary
CVE-2024-20294 is a medium (CVSS 6.6) vulnerability in cisco cisco firepower extensible operating system (fxos). EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.1% of scored vulnerabilities.
Timeline
- 28-02-2024PublishedVulnerability first disclosed.
- 01-08-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of specific fields in an LLDP frame. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface of an affected device and having an authenticated user retrieve LLDP statistics from the affected device through CLI show commands or Simple Network Management Protocol (SNMP) requests. A successful exploit could allow the attacker to cause the LLDP service to crash and stop running on the affected device. In certain situations, the LLDP crash may result in a reload of the affected device. Note: LLDP is a Layer 2 link protocol. To exploit this vulnerability, an attacker would need to be directly connected to an interface of an affected device, either physically or logically (for example, through a Layer 2 Tunnel configured to transport the LLDP protocol).
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST6.6MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
EPSS trend
Probability
0.32%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
0.00 pp
From 0.32% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco7 products
- cisco firepower extensible operating system (fxos)2.2.1.63 | 2.2.1.66 | 2.2.1.70 | 2.2.2.17 | 2.2.2.19 | 2.2.2.24 | 2.2.2.26 | 2.2.2.28 | 2.2.2.54 | 2.2.2.60 | 2.2.2.71 | 2.2.2.83 | 2.2.2.86 | 2.2.2.91 | 2.2.2.97 | 2.2.2.101 | 2.2.2.137 | 2.2.2.148 | 2.2.2.149 | 2.3.1.99 | 2.3.1.93 | 2.3.1.91 | 2.3.1.88 | 2.3.1.75 | 2.3.1.73 | 2.3.1.66 | 2.3.1.58 | 2.3.1.130 | 2.3.1.111 | 2.3.1.110 | 2.3.1.144 | 2.3.1.145 | 2.3.1.155 | 2.3.1.166 | 2.3.1.173 | 2.3.1.179 | 2.3.1.180 | 2.3.1.56 | 2.3.1.190 | 2.3.1.215 | 2.3.1.216 | 2.3.1.219 | 2.3.1.230 | 2.6.1.131 | 2.6.1.157 | 2.6.1.166 | 2.6.1.169 | 2.6.1.174 | 2.6.1.187 | 2.6.1.192 | 2.6.1.204 | 2.6.1.214 | 2.6.1.224 | 2.6.1.229 | 2.6.1.230 | 2.6.1.238 | 2.6.1.239 | 2.6.1.254 | 2.6.1.259 | 2.6.1.264 | 2.6.1.265 | 2.8.1.105 | 2.8.1.125 | 2.8.1.139 | 2.8.1.143 | 2.8.1.152 | 2.8.1.162 | 2.8.1.164 | 2.8.1.172 | 2.8.1.186 | 2.8.1.190 | 2.8.1.198 | 2.9.1.131 | 2.9.1.135 | 2.9.1.143 | 2.9.1.150 | 2.9.1.158 | 2.10.1.159 | 2.10.1.166 | 2.10.1.179 | 2.10.1.207 | 2.10.1.234 | 2.10.1.245 | 2.10.1.271 | 2.11.1.154 | 2.11.1.182 | 2.11.1.200 | 2.11.1.205 | 2.12.0.31 | 2.12.0.432 | 2.12.0.450 | 2.12.0.467 | 2.12.0.498 | 2.12.1.29 | 2.12.1.48 | 2.13.0.198 | 2.13.0.212 | 2.13.0.243 | 2.14.1.131
- cisco nx-os software6.0(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(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)A8(10a) | 6.0(2)A8(10) | 6.0(2)A8(11) | 6.0(2)A8(11a) | 6.0(2)A8(11b) | 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(2) | 6.0(2)U6(3) | 6.0(2)U6(4) | 6.0(2)U6(5) | 6.0(2)U6(6) | 6.0(2)U6(7) | 6.0(2)U6(8) | 6.0(2)U6(1a) | 6.0(2)U6(2a) | 6.0(2)U6(3a) | 6.0(2)U6(4a) | 6.0(2)U6(5a) | 6.0(2)U6(5b) | 6.0(2)U6(5c) | 6.0(2)U6(9) | 6.0(2)U6(10) | 6.2(2) | 6.2(2a) | 6.2(6) | 6.2(6b) | 6.2(8) | 6.2(8a) | 6.2(8b) | 6.2(10) | 6.2(12) | 6.2(18) | 6.2(16) | 6.2(14) | 6.2(6a) | 6.2(20) | 6.2(1) | 6.2(3) | 6.2(5) | 6.2(5a) | 6.2(5b) | 6.2(7) | 6.2(9) | 6.2(9a) | 6.2(9b) | 6.2(9c) | 6.2(11) | 6.2(11b) | 6.2(11c) | 6.2(11d) | 6.2(11e) | 6.2(13) | 6.2(13a) | 6.2(13b) | 6.2(15) | 6.2(17) | 6.2(19) | 6.2(21) | 6.2(23) | 6.2(20a) | 6.2(25) | 6.2(22) | 6.2(27) | 6.2(29) | 6.2(24) | 6.2(31) | 6.2(24a) | 6.2(33) | 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(4) | 7.0(3)F3(3c) | 7.0(3)F3(5) | 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)I2(1) | 7.0(3)I2(1a) | 7.0(3)I2(2) | 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(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) | 7.0(3)I7(10) | 7.1(0)N1(1a) | 7.1(0)N1(1b) | 7.1(0)N1(1) | 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(2) | 7.2(2)D1(1) | 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(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)N1(1) | 8.0(1) | 8.1(1) | 8.1(2) | 8.1(2a) | 8.1(1a) | 8.1(1b) | 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) | 8.2(10) | 8.3(1) | 8.3(2) | 9.2(1) | 9.2(2) | 9.2(2t) | 9.2(3) | 9.2(4) | 9.2(2v) | 9.2(1a) | 7.3(4)N1(1) | 7.3(3)D1(1) | 7.3(4)D1(1) | 7.3(5)N1(1) | 8.4(1) | 8.4(1a) | 8.4(2) | 8.4(2a) | 8.4(3) | 8.4(2b) | 8.4(4) | 8.4(2c) | 8.4(4a) | 8.4(5) | 8.4(2d) | 8.4(6) | 8.4(2e) | 8.4(6a) | 8.4(7) | 8.4(2f) | 9.3(1) | 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) | 9.3(10) | 9.3(11) | 9.3(2a) | 7.3(6)N1(1) | 7.3(5)D1(1) | 7.3(7)N1(1) | 7.3(7)N1(1a) | 7.3(7)N1(1b) | 7.3(6)D1(1) | 7.3(8)N1(1) | 7.3(7)D1(1) | 7.3(9)N1(1) | 10.1(1) | 10.1(2) | 10.1(2t) | 8.5(1) | 7.3(10)N1(1) | 7.3(8)D1(1) | 10.2(1) | 10.2(1q) | 10.2(2) | 10.2(3) | 10.2(3t) | 10.2(4) | 10.2(5) | 10.2(3v) | 7.3(9)D1(1) | 7.3(11)N1(1) | 7.3(12)N1(1) | 10.3(1) | 10.3(2) | 7.3(13)N1(1)
- cisco nx-os system software in aci mode12.0(1m) | 12.0(2g) | 12.0(1n) | 12.0(1o) | 12.0(1p) | 12.0(1q) | 12.0(2h) | 12.0(2l) | 12.0(2m) | 12.0(2n) | 12.0(2o) | 12.0(2f) | 12.0(1r) | 12.1(1h) | 12.1(2e) | 12.1(3g) | 12.1(4a) | 12.1(1i) | 12.1(2g) | 12.1(2k) | 12.1(3h) | 12.1(3j) | 12.2(1n) | 12.2(2e) | 12.2(3j) | 12.2(4f) | 12.2(4p) | 12.2(3p) | 12.2(3r) | 12.2(3s) | 12.2(3t) | 12.2(2f) | 12.2(2i) | 12.2(2j) | 12.2(2k) | 12.2(2q) | 12.2(1o) | 12.2(4q) | 12.2(4r) | 12.3(1e) | 12.3(1f) | 12.3(1i) | 12.3(1l) | 12.3(1o) | 12.3(1p) | 13.0(1k) | 13.0(2h) | 13.0(2k) | 13.0(2n) | 13.1(1i) | 13.1(2m) | 13.1(2o) | 13.1(2p) | 13.1(2q) | 13.1(2s) | 13.1(2t) | 13.1(2u) | 13.1(2v) | 13.2(1l) | 13.2(1m) | 13.2(2l) | 13.2(2o) | 13.2(3i) | 13.2(3n) | 13.2(3o) | 13.2(3r) | 13.2(4d) | 13.2(4e) | 13.2(3s) | 13.2(5d) | 13.2(5e) | 13.2(5f) | 13.2(6i) | 13.2(7f) | 13.2(7k) | 13.2(9b) | 13.2(9f) | 13.2(9h) | 13.2(10e) | 13.2(10f) | 13.2(10g) | 14.0(1h) | 14.0(2c) | 14.0(3d) | 14.0(3c) | 14.1(1i) | 14.1(1j) | 14.1(1k) | 14.1(1l) | 14.1(2g) | 14.1(2m) | 14.1(2o) | 14.1(2s) | 14.1(2u) | 14.1(2w) | 14.1(2x) | 14.2(1i) | 14.2(1j) | 14.2(1l) | 14.2(2e) | 14.2(2f) | 14.2(2g) | 14.2(3j) | 14.2(3l) | 14.2(3n) | 14.2(3q) | 14.2(4i) | 14.2(4k) | 14.2(4o) | 14.2(4p) | 14.2(5k) | 14.2(5l) | 14.2(5n) | 14.2(6d) | 14.2(6g) | 14.2(6h) | 14.2(6l) | 14.2(7f) | 14.2(7l) | 14.2(6o) | 14.2(7q) | 14.2(7r) | 14.2(7s) | 14.2(7t) | 14.2(7u) | 14.2(7v) | 14.2(7w) | 15.0(1k) | 15.0(1l) | 15.0(2e) | 15.0(2h) | 15.1(1h) | 15.1(2e) | 15.1(3e) | 15.1(4c) | 15.2(1g) | 15.2(2e) | 15.2(2f) | 15.2(2g) | 15.2(2h) | 15.2(3e) | 15.2(3f) | 15.2(3g) | 15.2(4d) | 15.2(4e) | 15.2(5c) | 15.2(5d) | 15.2(5e) | 15.2(4f) | 15.2(6e) | 15.2(6g) | 15.2(7f) | 15.2(7g) | 15.2(8d) | 15.2(8e) | 15.2(8f) | 15.2(8g) | 16.0(1g) | 16.0(1j) | 16.0(2h) | 16.0(2j) | 16.0(3d) | 16.0(3e) | 15.3(1d)
- cisco unified computing system (managed)3.1(1e) | 3.1(1g) | 3.1(1h) | 3.1(1k) | 3.1(1l) | 3.1(2b) | 3.1(2c) | 3.1(2e) | 3.1(2f) | 3.1(2g) | 3.1(2h) | 3.1(3a) | 3.1(3b) | 3.1(3c) | 3.1(3d) | 3.1(3e) | 3.1(3f) | 3.1(3h) | 3.1(3j) | 3.1(3k) | 3.1(2d) | 3.1(3l) | 3.2(1d) | 3.2(2b) | 3.2(2c) | 3.2(2d) | 3.2(2e) | 3.2(2f) | 3.2(3a) | 3.2(3b) | 3.2(3d) | 3.2(3e) | 3.2(3g) | 3.2(3h) | 3.2(3i) | 3.2(3j) | 3.2(3k) | 3.2(3l) | 3.2(3n) | 3.2(3o) | 3.2(3p) | 4.0(1a) | 4.0(1b) | 4.0(1c) | 4.0(1d) | 4.0(2a) | 4.0(2b) | 4.0(2d) | 4.0(2e) | 4.0(4b) | 4.0(4c) | 4.0(4d) | 4.0(4e) | 4.0(4f) | 4.0(4g) | 4.0(4h) | 4.0(4a) | 4.0(4i) | 4.0(4k) | 4.0(4l) | 4.0(4m) | 4.0(4n) | 4.0(4o) | 4.1(1a) | 4.1(1b) | 4.1(1c) | 4.1(2a) | 4.1(1d) | 4.1(1e) | 4.1(2b) | 4.1(3a) | 4.1(3b) | 4.1(2c) | 4.1(3d) | 4.1(3c) | 4.1(3e) | 4.1(3f) | 4.1(3h) | 4.1(3i) | 4.1(3j) | 4.1(3k) | 4.1(3l) | 4.2(1d) | 4.2(1c) | 4.2(1f) | 4.2(1i) | 4.2(1k) | 4.2(1l) | 4.2(1m) | 4.2(2a) | 4.2(2c) | 4.2(1n) | 4.2(2d) | 4.2(3b) | 4.2(2e) | 4.2(3d) | 4.2(3e) | 4.2(3g) | 4.2(3h) | 4.2(3i)
- firepower_extensible_operating_system2.2.1.63 | 2.2.1.66 | 2.2.1.70 | 2.2.2.17 | 2.2.2.19 | 2.2.2.24 | 2.2.2.26 | 2.2.2.28 | 2.2.2.54 | 2.2.2.60 | 2.2.2.71 | 2.2.2.83 | 2.2.2.86 | 2.2.2.91 | 2.2.2.97 | 2.2.2.101 | 2.2.2.137 | 2.2.2.148 | 2.2.2.149 | 2.3.1.56 | 2.3.1.58 | 2.3.1.66 | 2.3.1.73 | 2.3.1.75 | 2.3.1.88 | 2.3.1.91 | 2.3.1.93 | 2.3.1.99 | 2.3.1.110 | 2.3.1.111 | 2.3.1.130 | 2.3.1.144 | 2.3.1.145 | 2.3.1.155 | 2.3.1.166 | 2.3.1.173 | 2.3.1.179 | 2.3.1.180 | 2.3.1.190 | 2.3.1.215 | 2.3.1.216 | 2.3.1.219 | 2.3.1.230 | 2.6.1.131 | 2.6.1.157 | 2.6.1.166 | 2.6.1.169 | 2.6.1.174 | 2.6.1.187 | 2.6.1.192 | 2.6.1.204 | 2.6.1.214 | 2.6.1.224 | 2.6.1.229 | 2.6.1.230 | 2.6.1.238 | 2.6.1.239 | 2.6.1.254 | 2.6.1.259 | 2.6.1.264 | 2.6.1.265 | 2.8.1.105 | 2.8.1.125 | 2.8.1.139 | 2.8.1.143 | 2.8.1.152 | 2.8.1.162 | 2.8.1.164 | 2.8.1.172 | 2.8.1.186 | 2.8.1.190 | 2.8.1.198 | 2.9.1.131 | 2.9.1.135 | 2.9.1.143 | 2.9.1.150 | 2.9.1.158 | 2.10.1.159 | 2.10.1.166 | 2.10.1.179 | 2.10.1.207 | 2.10.1.234 | 2.10.1.245 | 2.10.1.271 | 2.11.1.154 | 2.11.1.182 | 2.11.1.200 | 2.11.1.205 | 2.12.0.31 | 2.12.0.432 | 2.12.0.450 | 2.12.0.467 | 2.12.0.498 | 2.12.1.29 | 2.12.1.48 | 2.13.0.198 | 2.13.0.212 | 2.13.0.243 | 2.14.1.131
1 vendor · 7 products
References
1 links- sec.cloudapps.cisco.com/security/…Vendor Advisory