CVE-2024-20294 Cisco Firepower Extensible Operating System
| Affected software | Cisco Firepower Extensible Operating System |
|---|---|
| Severity | 6.6 Medium CVSS 3.1 2 scores |
| Weakness | CWE-805 |
| Published | 29 Feb 2024 |
| Updated | 17 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.
Exploitation status
- 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
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
CVSS
6.6 MEDIUM v3.1CVSS: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.
| Version | Score | Band | Vector | Assigner | Type | |
|---|---|---|---|---|---|---|
| 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| Source | Vendor | Product | Scheme | Affected 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
| URL | Tags |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-lldp-dos-z7PncTgt | Vendor Advisory |
Timeline
Timeline
| Published | 2024-02-29 | By the CVE Program. |
|---|---|---|
| NVD record modified | 2026-06-17 | NVD's own last-modified date for this record. |