CVE-2024-20496

mediumpriority · track · 0EPSS 0.002 · 13 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.22% (13th) EPSS
CVSS 6.1 · medium
Is it mine?
168 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A vulnerability in the UDP packet validation code of Cisco SD-WAN vEdge Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system. This vulnerability is due to incorrect handling of a specific type of malformed UDP packet. An attacker in a machine-in-the-middle position could exploit this vulnerability by sending crafted UDP packets to an affected device. A successful exploit could allow the attacker to cause the device to reboot, resulting in a DoS condition on the affected system.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

6.1
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.1mediumAV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.16.1mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU
v3.16.1mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · psirt@cisco.com USexploitability 1.6 · impact 4
v3.15.6mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.16.1mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · Cisco PSIRT US
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USCWE-787US
05

affected products (168)

Products and version ranges known to be affected.

showing 20 of 168
06

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2024-2225Cisco SD-WAN: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-09-25csaf · cert_bundDE

    Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in Cisco SD-WAN ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • cisco-sa-sdw-vedos-KqFfhps3Cisco SD-WAN vEdge Software UDP Packet Validation Denial of Service Vulnerability2024-09-25csaf · cisco_csafUS

    A vulnerability in the UDP packet validation code of Cisco SD-WAN vEdge Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system. This vulnerability is due to incorrect handling of a specific type of malformed UDP packet. An attacker in a machine-in-the-middle position could exploit this vulnerability by sending crafted UDP packets to an affected device. A successful exploit could allow the attacker to cause the device to reboot, resulting in a DoS condition on the affected system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisco_csafNVDCVE.orgMITRE
published 2024-09-25modified 2026-06-17
09

references (5)

External citations — patches, advisories, analysis.

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