How severe is CVE-2020-9029?

CVE-2020-9029 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-9029 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9029?

CVE-2020-9029 primarily affects Microchip Syncserver S100 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-9029?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-9029 published?

CVE-2020-9029 was published on 2020-02-17 and last updated on 2026-06-17.

CVE-2020-9029

CVE-2020-9029 is a medium-severity vulnerability in Microchip Syncserver S100 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.4
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Microchip Syncserver S100 Firmware
Published: 2020-02-17
Last modified: 2026-06-17

Description

Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices allow Directory Traversal via the FileName parameter to messagelog.php.

Frequently asked questions

What is CVE-2020-9029?: Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices allow Directory Traversal via the FileName parameter to messagelog.php.
How severe is CVE-2020-9029?: CVE-2020-9029 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-9029 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9029?: CVE-2020-9029 primarily affects Microchip Syncserver S100 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-9029?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9029 published?: CVE-2020-9029 was published on 2020-02-17 and last updated on 2026-06-17.

References

https://sku11army.blogspot.com/2020/01/symmetricom-syncserver.html

Affected products (5)

cpe:2.3:o:microchip:syncserver_s100_firmware:2.90.70.3:*:*:*:*:*:*:*
cpe:2.3:o:microchip:syncserver_s200_firmware:1.30:*:*:*:*:*:*:*
cpe:2.3:o:microchip:syncserver_s250_firmware:1.25:*:*:*:*:*:*:*
cpe:2.3:o:microchip:syncserver_s300_firmware:2.65.0:*:*:*:*:*:*:*
cpe:2.3:o:microchip:syncserver_s350_firmware:2.80.1:*:*:*:*:*:*:*

More vulnerabilities in Microchip Syncserver S100 Firmware

CVE-2020-9034 — High (CVSS 7.5): Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices mishandle session…
CVE-2020-9033 — Medium (CVSS 6.5): Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices allow Directory…
CVE-2020-9032 — Medium (CVSS 6.5): Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices allow Directory…
CVE-2020-9031 — Medium (CVSS 6.5): Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices allow Directory…
CVE-2020-9030 — Medium (CVSS 6.5): Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices allow Directory…
CVE-2020-9028 — Medium (CVSS 6.1): Symmetricom SyncServer S100 2.90.70.3, S200 1.30, S250 1.25, S300 2.65.0, and S350 2.80.1 devices allow stored XSS via…

All CVEs affecting Microchip Syncserver S100 Firmware →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →