CVE-2020-3375

highpriority · track · 40EPSS 0.039 · 90 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.90% (90th) EPSS

CVSS 10 · high

Is it mine?

37 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to information that they are not authorized to access, make changes to the system that they are not authorized to make, and execute commands on an affected system with privileges of the root user.

remediations

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

No fix is available; mitigate or reduce exposure.

No fix available16.10.0cisco_csaf
No remediation is available at this time.
No fix available16.10.1cisco_csaf
No remediation is available at this time.
No fix available16.10.2cisco_csaf
No remediation is available at this time.
No fix available16.10.3cisco_csaf
No remediation is available at this time.
No fix available16.10.3acisco_csaf
No remediation is available at this time.
No fix available16.10.3bcisco_csaf
No remediation is available at this time.
No fix available16.10.4cisco_csaf
No remediation is available at this time.
No fix available16.11.0cisco_csaf
No remediation is available at this time.
No fix available16.11.1acisco_csaf
No remediation is available at this time.
No fix available16.12.0cisco_csaf
No remediation is available at this time.
No fix available16.12.1bcisco_csaf
No remediation is available at this time.
No fix available16.12.1dcisco_csaf
No remediation is available at this time.
No fix available16.12.1ecisco_csaf
No remediation is available at this time.
No fix available16.12.2rcisco_csaf
No remediation is available at this time.
No fix available16.9.0cisco_csaf
No remediation is available at this time.
No fix available16.9.1cisco_csaf
No remediation is available at this time.
No fix available16.9.2cisco_csaf
No remediation is available at this time.
No fix available16.9.3cisco_csaf
No remediation is available at this time.
No fix available16.9.4cisco_csaf
No remediation is available at this time.
No fix availableCisco Catalyst SD-WAN Managercisco_csaf
No remediation is available at this time.

cvss

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

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Cisco PSIRT US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-119USCWE-119US

affected products (37)

Products and version ranges known to be affected.

Cisco 16.10.0all versionscisco_csafUS
Cisco 16.10.1all versionscisco_csafUS
Cisco 16.10.2all versionscisco_csafUS
Cisco 16.10.3all versionscisco_csafUS
Cisco 16.10.3aall versionscisco_csafUS
Cisco 16.10.3ball versionscisco_csafUS
Cisco 16.10.4all versionscisco_csafUS
Cisco 16.11.0all versionscisco_csafUS
Cisco 16.11.1aall versionscisco_csafUS
Cisco 16.12.0all versionscisco_csafUS
Cisco 16.12.1ball versionscisco_csafUS
Cisco 16.12.1dall versionscisco_csafUS
Cisco 16.12.1eall versionscisco_csafUS
Cisco 16.12.2rall versionscisco_csafUS
Cisco 16.9.0all versionscisco_csafUS
Cisco 16.9.1all versionscisco_csafUS
Cisco 16.9.2all versionscisco_csafUS
Cisco 16.9.3all versionscisco_csafUS
Cisco 16.9.4all versionscisco_csafUS
Cisco Cisco Catalyst SD-WAN Managerall versionscisco_csafUS

showing 20 of 37

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-sdbufof-h5f5VSeLCisco SD-WAN Solution Software Buffer Overflow Vulnerability2020-07-29csaf · cisco_csafUS
A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to information that they are not authorized to access, make changes to the system that they are not authorized to make, and execute commands on an affected system with privileges of the root user. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf NVD CVE.org MITRE

published 2020-07-31modified 2026-06-17

related (25,193)

Related entries.

ID	severity	EPSS	exploitable	published
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CVE-2026-93952US	—OT critical	1.38% (72nd)	KEV	2026-09-22
VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successf…
CVE-2026-12569US	critical9.8OT critical	46.0% (99th)	KEV	2026-06-18
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
CVE-2026-34910US	—OT critical	90.0% (100th)	KEV	2026-05-22
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
CVE-2026-6973US	—OT critical	34.5% (98th)	KEV	2026-05-07
An Improper Input Validation in Ivanti EPMM before versions 12.6.1.1, 12.7.0.1, and 12.8.0.1 allows a remotely authenticated user with administrative access to achieve remote code…

+25188 more

references (7)

External citations — patches, advisories, analysis.

scry

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