No exploitation reported

CVE-2020-10634

No exploitation reported by the sources we read.

Published2020-05-05
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

SAE IT-systems FW-50 Remote Telemetry Unit (RTU). A specially crafted request could allow an attacker to view the file structure of the affected device and access files that should be inaccessible.

Timeline

dates in UTC

2020-05-0521:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-10634?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-10634?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Sae-it net-line fw-50 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-20-126-02 CISA1 known affected
SAE IT-systems FW-50 Remote Telemetry Unit (RTU)
FW-50 RTU 5 Series CPU-5B: Hardware Revision 2; CPLD Revision 6

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-20-126-02 · 1 productSAE IT-systems recommends replacing the CPU card with a new one. Find a contact person for information regarding the replacement CPU card. After obtaining a replacement CPU card, program the card with the new version of setIT software. The upgrade can be downloaded from the SAE IT-systems website.
Mitigation from the vendor CISA ICSA-20-126-02 · 1 productFor information regarding the replacement CPU card, contact SAE IT-systems
Mitigation from the vendor CISA ICSA-20-126-02 · 1 productSAE IT-systems recommends that users could also disable the web server port, since all referenced vulnerabilities are related to the web server.
Mitigation from the vendor CISA ICSA-20-126-02 · 1 productSAE IT-systems also recommends if the project web server port is not used, disable the port for security reasons.
Mitigation from the vendor CISA ICSA-20-126-02 · 1 productFor information regarding disabling the project web server port contact the SAE IT-systems Hotline at: Phone: +49 221 / 59 808-55; Email: service@sae-it.de

Advisories and patches

www.us-cert.govMitigation

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.1read 2026-10-23
NVDCVSS 2.06.4read 2026-10-23
CNAweakness (CWE)CWE-22read 2026-10-23
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score1.4 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published: 2020-05-05
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-10634?

SAE IT-systems FW-50 Remote Telemetry Unit (RTU). A specially crafted request could allow an attacker to view the file structure of the affected device and access files that should be inaccessible.

Is CVE-2020-10634 actively exploited?

Active exploitation of CVE-2020-10634 has not been confirmed. Its EPSS score was 1.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-10634?

CVE-2020-10634 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

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