Security readout for executives and security teams
Plain-English summary
This vulnerability affects GE Reason RT430, RT431, and RT434 GNSS clocks running firmware before 08A06. A hard-coded cryptographic key could let an attacker decrypt encrypted HTTPS traffic, exposing information sent to or from the clock. The published impact is confidentiality only, not system takeover or outage.
Executive priority
Treat as a targeted operational technology confidentiality issue. Prioritize environments where GNSS clocks support critical timing functions or where management traffic is observable beyond trusted administrators. It is not KEV-listed in the provided bundle, so urgency should be risk-based rather than emergency-driven.
Technical view
CVE-2020-25193 is CWE-321: use of a hard-coded cryptographic key. For affected GE Reason RT43X firmware before 08A06, access to that key could allow interception and decryption of HTTPS traffic. CVSS 3.1 is 5.3, network exploitable, low complexity, no privileges, no user interaction, confidentiality impact low.
Likely exposure
Exposure is most likely in organizations operating GE Reason RT430, RT431, or RT434 GNSS clocks, especially where management or HTTPS traffic crosses networks that untrusted parties could observe. The bundle does not identify other affected GE products or CPEs.
Exploitation context
The source bundle does not show CISA KEV listing or public active exploitation. The risk is traffic confidentiality loss if an attacker can access the hard-coded key and observe relevant HTTPS communications.
Researcher notes
The evidence is narrow but consistent: affected products are GE Reason RT430, RT431, and RT434 GNSS clocks before firmware 08A06. The stated outcome is HTTPS traffic decryption, with no integrity or availability impact in the supplied CVSS vector. No exploit details should be assumed from this bundle.
Mitigation direction
- Inventory GE Reason RT430, RT431, and RT434 GNSS clocks.
- Confirm firmware versions and identify systems before 08A06.
- Upgrade affected clocks to firmware 08A06 or later per GE guidance.
- Review the CISA ICS advisory and GE bulletin for operational guidance.
- Limit management access to trusted administrative networks.
Validation and detection
- Verify each RT43X model and firmware version from asset records or device administration.
- Confirm no RT430, RT431, or RT434 remains below firmware 08A06.
- Check whether HTTPS management traffic traverses shared or untrusted networks.
- Confirm compensating access controls around clock management interfaces.
- Document remediation status for all identified affected clocks.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-321: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-25193 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-005-03CVE reference · x_refsource_CONFIRM
- https://www.gegridsolutions.com/app/DownloadFile.aspx?prod=RT430&type=21&file=5CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Hard-coded Cryptographic Key
Use of Hard-coded Cryptographic Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.