CVE-2020-10754Network attack vector

Certificate-validation bypass via silently dropped CA paths

Published Jun 8, 2020 · Updated Aug 4, 2024

Authentication bypass in Red Hat NetworkManager 1.24.2 allows remote authenticated users to establish insecure 802.1X connections. The ifcfg-rh settings plugin silently discards nmcli-supplied 802-1x.ca-path and 802-1x.phase2-ca-path values while reporting success. Exploitation requires profile creation through nmcli with the ifcfg-rh backend; subsequent use omits intended CA-path validation and exposes connection confidentiality.

CVSS severity4.3
Medium
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Red Hat NetworkManager 1.24.2 allows remote authenticated users to establish insecure 802.1X connections. The ifcfg-rh settings plugin silently discards nmcli-supplied 802-1x.ca-path and 802-1x.phase2-ca-path values while reporting success. Exploitation requires profile creation through nmcli with the ifcfg-rh backend; subsequent use omits intended CA-path validation and exposes connection confidentiality.

The record

CVE
CVE-2020-10754
Published
Jun 8, 2020
Updated
Aug 4, 2024
Vendor
Red Hat
Product
NetworkManager
Classifications
CWE-455, T1557
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 8, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.24.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Red Hat · NetworkManagerversion=1.24.2

Published CVSS scores

4.3Red HatCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-455Non-exit on Failed Initialization
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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