WaratekVRT Sign in

CVE-2024-20294 Cisco Firepower Extensible Operating System

Affected softwareCisco Firepower Extensible Operating System
Severity6.6 Medium CVSS 3.1 2 scores
WeaknessCWE-805
Published29 Feb 2024
Updated17 Jun 2026

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).

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 2 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.32% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review automated Upstream data
  • Record active
Decided by The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached
Finding This CVE names only products the Waratek agent cannot be installed into (cisco/unified_computing_system). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

CVSS

6.6 MEDIUM v3.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 6.6 MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H psirt@cisco.com Secondary published
CVSS 3.1 6.6 MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H NVD Primary

Affected software and releases

Products and versions

3 products, 657 version entries
SourceVendorProductSchemeAffected versions
nvd cisco firepower extensible operating system generic 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 · 2.3.1.56 · 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
nvd cisco nx-os generic 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\(2\)a3\(1\) · 6.0\(2\)u3\(1\) · 6.0\(2\)a3\(2\) · 6.0\(2\)u3\(2\) · 6.0\(2\)u3\(3\) · 6.0\(2\)a3\(4\) · 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\(2\)a4\(1\) · 6.0\(2\)u4\(1\) · 6.0\(2\)a4\(2\) · 6.0\(2\)u4\(2\) · 6.0\(2\)a4\(3\) · 6.0\(2\)u4\(3\) · 6.0\(2\)a4\(4\) · 6.0\(2\)u4\(4\) · 6.0\(2\)a4\(5\) · 6.0\(2\)a4\(6\) · 6.0\(2\)u5\(1\) · 6.0\(2\)u5\(2\) · 6.0\(2\)u5\(3\) · 6.0\(2\)u5\(4\) · 6.0\(2\)a6\(1\) · 6.0\(2\)a6\(1a\) · 6.0\(2\)u6\(1\) · 6.0\(2\)u6\(1a\) · 6.0\(2\)a6\(2\) · 6.0\(2\)a6\(2a\) · 6.0\(2\)u6\(2\) · 6.0\(2\)u6\(2a\) · 6.0\(2\)a6\(3\) · 6.0\(2\)a6\(3a\) · 6.0\(2\)u6\(3\) · 6.0\(2\)u6\(3a\) · 6.0\(2\)a6\(4\) · 6.0\(2\)a6\(4a\) · 6.0\(2\)u6\(4\) · 6.0\(2\)u6\(4a\) · 6.0\(2\)a6\(5\) · 6.0\(2\)a6\(5a\) · 6.0\(2\)a6\(5b\) · 6.0\(2\)u6\(5\) · 6.0\(2\)u6\(5a\) · 6.0\(2\)u6\(5b\) · 6.0\(2\)u6\(5c\) · 6.0\(2\)a6\(6\) · 6.0\(2\)u6\(6\) · 6.0\(2\)a6\(7\) · 6.0\(2\)u6\(7\) · 6.0\(2\)a6\(8\) · 6.0\(2\)u6\(8\) · 6.0\(2\)u6\(9\) · 6.0\(2\)u6\(10\) · 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\(10\) · 6.0\(2\)a8\(10a\) · 6.0\(2\)a8\(11\) · 6.0\(2\)a8\(11a\) · 6.0\(2\)a8\(11b\) · 6.2\(1\) · 6.2\(2\) · 6.2\(2a\) · 6.2\(3\) · 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\(9c\) · 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\(20\) · 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\(31\) · 6.2\(33\) · 7.0\(3\)f1\(1\) · 7.0\(3\)f2\(1\) · 7.0\(3\)i2\(1\) · 7.0\(3\)i2\(1a\) · 7.0\(3\)f2\(2\) · 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\(3\)f3\(1\) · 7.0\(3\)i3\(1\) · 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\(3\)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\(1\) · 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\(0\)dx\(1\) · 7.3\(0\)dy\(1\) · 7.3\(0\)d1\(1\) · 7.3\(0\)n1\(1\) · 7.3\(1\)dy\(1\) · 7.3\(1\)d1\(1\) · 7.3\(1\)n1\(1\) · 7.3\(2\)d1\(1\) · 7.3\(2\)n1\(1\) · 7.3\(2\)d1\(2\) · 7.3\(2\)d1\(3\) · 7.3\(2\)d1\(3a\) · 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\(1\) · 7.3\(10\)n1\(1\) · 7.3\(11\)n1\(1\) · 7.3\(12\)n1\(1\) · 7.3\(13\)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\(9\) · 8.2\(10\) · 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\(2\) · 9.3\(2a\) · 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\(11\) · 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\(3v\) · 10.2\(4\) · 10.2\(5\) · 10.3\(1\) · 10.3\(2\) · 12.0\(1m\) · 12.0\(1n\) · 12.0\(1o\) · 12.0\(1p\) · 12.0\(1q\) · 12.0\(1r\) · 12.0\(2f\) · 12.0\(2g\) · 12.0\(2h\) · 12.0\(2l\) · 12.0\(2m\) · 12.0\(2n\) · 12.0\(2o\) · 12.1\(1h\) · 12.1\(1i\) · 12.1\(2e\) · 12.1\(2g\) · 12.1\(2k\) · 12.1\(3g\) · 12.1\(3h\) · 12.1\(3j\) · 12.1\(4a\) · 12.2\(1n\) · 12.2\(1o\) · 12.2\(2e\) · 12.2\(2f\) · 12.2\(2i\) · 12.2\(2j\) · 12.2\(2k\) · 12.2\(2q\) · 12.2\(3j\) · 12.2\(3p\) · 12.2\(3r\) · 12.2\(3s\) · 12.2\(3t\) · 12.2\(4f\) · 12.2\(4p\) · 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\(3s\) · 13.2\(4d\) · 13.2\(4e\) · 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\(3c\) · 14.0\(3d\) · 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\(6o\) · 14.2\(7f\) · 14.2\(7l\) · 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\(4f\) · 15.2\(5c\) · 15.2\(5d\) · 15.2\(5e\) · 15.2\(6e\) · 15.2\(6g\) · 15.2\(7f\) · 15.2\(7g\) · 15.2\(8d\) · 15.2\(8e\) · 15.2\(8f\) · 15.2\(8g\) · 15.3\(1d\) · 16.0\(1g\) · 16.0\(1j\) · 16.0\(2h\) · 16.0\(2j\) · 16.0\(3d\) · 16.0\(3e\)
nvd cisco unified computing system generic 3.1\(1e\) · 3.1\(1g\) · 3.1\(1h\) · 3.1\(1k\) · 3.1\(1l\) · 3.1\(2b\) · 3.1\(2c\) · 3.1\(2d\) · 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\(3l\) · 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\(4a\) · 4.0\(4b\) · 4.0\(4c\) · 4.0\(4d\) · 4.0\(4e\) · 4.0\(4f\) · 4.0\(4g\) · 4.0\(4h\) · 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\(1d\) · 4.1\(1e\) · 4.1\(2a\) · 4.1\(2b\) · 4.1\(2c\) · 4.1\(3a\) · 4.1\(3b\) · 4.1\(3c\) · 4.1\(3d\) · 4.1\(3e\) · 4.1\(3f\) · 4.1\(3h\) · 4.1\(3i\) · 4.1\(3j\) · 4.1\(3k\) · 4.1\(3l\) · 4.2\(1c\) · 4.2\(1d\) · 4.2\(1f\) · 4.2\(1i\) · 4.2\(1k\) · 4.2\(1l\) · 4.2\(1m\) · 4.2\(1n\) · 4.2\(2a\) · 4.2\(2c\) · 4.2\(2d\) · 4.2\(2e\) · 4.2\(3b\) · 4.2\(3d\) · 4.2\(3e\) · 4.2\(3g\) · 4.2\(3h\) · 4.2\(3i\)

References

URLTags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-lldp-dos-z7PncTgt Vendor Advisory

Timeline

Published2024-02-29By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.