CVE-2020-25193Network attack vector

HTTPS traffic disclosure via hard-coded key

Published Mar 18, 2022 · Updated Apr 16, 2025

Hard-coded key use in General Electric Reason RT43X Clocks before 08A06 allows attackers to decrypt intercepted HTTPS traffic. The embedded firmware stores a hard-coded cryptographic key used by HTTPS, so possession of that key defeats transport confidentiality. Exploitation requires access to the key and a position capable of intercepting device web traffic; no integrity or availability impact is reported.

CVSS severity5.3
Medium
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded key use in General Electric Reason RT43X Clocks before 08A06 allows attackers to decrypt intercepted HTTPS traffic. The embedded firmware stores a hard-coded cryptographic key used by HTTPS, so possession of that key defeats transport confidentiality. Exploitation requires access to the key and a position capable of intercepting device web traffic; no integrity or availability impact is reported.

The record

CVE
CVE-2020-25193
Published
Mar 18, 2022
Updated
Apr 16, 2025
Vendor
General Electric
Product
Reason RT43X Clocks
Classifications
CWE-798, CWE-321, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record 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=unspecified <08A06

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

General Electric · Reason RT43X Clocksversion=unspecified <08A06

Published CVSS scores

5.3ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
CWE-321Use of Hard-coded Cryptographic Key
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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