How severe is CVE-2020-29026?

CVE-2020-29026 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2020-29026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-29026?

CVE-2020-29026 primarily affects Secomea Gatemanager 8250 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-29026?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-29026 published?

CVE-2020-29026 was published on 2021-02-15 and last updated on 2026-06-17.

CVE-2020-29026

CVE-2020-29026 is a critical-severity vulnerability in Secomea Gatemanager 8250 Firmware with a CVSS 3.x base score of 9.0. 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: Critical (CVSS 3.x base score 9.0)
CVSS v2: 5.5
EPSS exploit prediction: 1% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Secomea Gatemanager 8250 Firmware
Published: 2021-02-15
Last modified: 2026-06-17

Description

A directory traversal vulnerability exists in the file upload function of the GateManager that allows an authenticated attacker with administrative permissions to read and write arbitrary files in the Linux file system. This issue affects: GateManager all versions prior to 9.2c.

Frequently asked questions

What is CVE-2020-29026?: A directory traversal vulnerability exists in the file upload function of the GateManager that allows an authenticated attacker with administrative permissions to read and write arbitrary files in the Linux file system. This issue affects: GateManager all versions prior to 9.2c.
How severe is CVE-2020-29026?: CVE-2020-29026 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2020-29026 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-29026?: CVE-2020-29026 primarily affects Secomea Gatemanager 8250 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-29026?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-29026 published?: CVE-2020-29026 was published on 2021-02-15 and last updated on 2026-06-17.

References

https://www.secomea.com/support/cybersecurity-advisory/#2918

Affected products (4)

cpe:2.3:o:secomea:gatemanager_8250_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:secomea:gatemanager_4250_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:secomea:gatemanager_4260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:secomea:gatemanager_9250_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Secomea Gatemanager 8250 Firmware

CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2020-14510 — Critical (CVSS 9.8): GateManager versions prior to 9.2c, The affected product contains a hard-coded credential for telnet, allowing an…
CVE-2020-29032 — High (CVSS 8.4): Upload of Code Without Integrity Check vulnerability in firmware archive of Secomea GateManager allows authenticated…
CVE-2020-14512 — High (CVSS 8.1): GateManager versions prior to 9.2c, The affected product uses a weak hash type, which may allow an attacker to view…
CVE-2020-14508 — High (CVSS 8.1): GateManager versions prior to 9.2c, The affected product is vulnerable to an off-by-one error, which may allow an…
CVE-2022-25787 — High (CVSS 7.5): Information Exposure Through Query Strings in GET Request vulnerability in LMM API of Secomea GateManager allows system…

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