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01 Record

CVE-2024-20294

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)

MediumPUBLISHEDCNA: cisco
CNA base score6.6 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
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02 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)

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.31% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 24.4% of scored records. A rank, not a probability.
NVD base score
6.6 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-02-28 16:16Z2 YR AGO
Last updated
2024-08-01 21:59Z2 YR AGO
Reserved
2023-11-08
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Medium (CVSS 6.6)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
Weaknesses
  • CWE-805Buffer Access with Incorrect Length ValueBase
Data version
5.1
Document digest
fa96d9ff1b23b90f4438ade679d3240bd49aee50fe38224a7e098d4356890980

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco 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)—
CiscoCisco 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)—
CiscoCisco 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—
CiscoCisco 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)—

06 References