How severe is CVE-2020-29022?

CVE-2020-29022 has a CVSS 3.x base score of 5.3, 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 none, and availability none.

Is CVE-2020-29022 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-29022?

CVE-2020-29022 primarily affects Secomea Gatemanager 4250 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-2020-29022?

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

When was CVE-2020-29022 published?

CVE-2020-29022 was published on 2021-02-16 and last updated on 2026-06-17.

CVE-2020-29022

CVE-2020-29022 is a medium-severity vulnerability in Secomea Gatemanager 4250 Firmware with a CVSS 3.x base score of 5.3. 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-159.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-159
Affected product: Secomea Gatemanager 4250 Firmware
Published: 2021-02-16
Last modified: 2026-06-17

Description

Failure to Sanitize host header value on output in the GateManager Web server could allow an attacker to conduct web cache poisoning attacks. This issue affects Secomea GateManager all versions prior to 9.3

Frequently asked questions

What is CVE-2020-29022?: Failure to Sanitize host header value on output in the GateManager Web server could allow an attacker to conduct web cache poisoning attacks. This issue affects Secomea GateManager all versions prior to 9.3
How severe is CVE-2020-29022?: CVE-2020-29022 has a CVSS 3.x base score of 5.3, 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 none, and availability none.
Is CVE-2020-29022 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-29022?: CVE-2020-29022 primarily affects Secomea Gatemanager 4250 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-2020-29022?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-29022 published?: CVE-2020-29022 was published on 2021-02-16 and last updated on 2026-06-17.

References

https://www.secomea.com/support/cybersecurity-advisory/#2923

Affected products (4)

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

More vulnerabilities in Secomea Gatemanager 4250 Firmware

CVE-2020-29026 — Critical (CVSS 9.0): A directory traversal vulnerability exists in the file upload function of the GateManager that allows an authenticated…
CVE-2022-25787 — High (CVSS 7.5): Information Exposure Through Query Strings in GET Request vulnerability in LMM API of Secomea GateManager allows system…
CVE-2020-29031 — High (CVSS 7.1): An Insecure Direct Object Reference vulnerability exists in the web UI of the GateManager which allows an authenticated…
CVE-2021-32010 — Medium (CVSS 5.6): Inadequate Encryption Strength vulnerability in TLS stack of Secomea SiteManager, LinkManager, GateManager may…
CVE-2022-25782 — Medium (CVSS 5.4): Improper Handling of Insufficient Privileges vulnerability in Web UI of Secomea GateManager allows logged in user to…
CVE-2020-29024 — Medium (CVSS 5.3): Sensitive Cookie in HTTPS Session Without 'Secure' Attribute vulnerability in (GTA) GoToAppliance of Secomea…

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Other CWE-159 vulnerabilities

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CVE-2020-1648 — High (CVSS 7.5): On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific BGP packet can lead to a routing…
CVE-2020-1646 — High (CVSS 7.5): On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific UPDATE for an EBGP peer can lead to a…
CVE-2026-35536 — High (CVSS 7.2): In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to…
CVE-2026-2636 — Medium (CVSS 5.5): This vulnerability is caused by a CWE‑159: "Improper Handling of Invalid Use of Special Elements" weakness, which…
CVE-2021-42375 — Medium (CVSS 5.5): An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted…

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