How severe is CVE-2021-45877?

CVE-2021-45877 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-45877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45877?

CVE-2021-45877 primarily affects Garo Wallbox Gtb Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-45877?

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-2021-45877 published?

CVE-2021-45877 was published on 2022-03-21 and last updated on 2026-06-17.

CVE-2021-45877

CVE-2021-45877 is a critical-severity vulnerability in Garo Wallbox Gtb Firmware with a CVSS 3.x base score of 9.8. 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Garo Wallbox Gtb Firmware
Published: 2022-03-21
Last modified: 2026-06-17

Description

Multiple versions of GARO Wallbox GLB/GTB/GTC are affected by hard coded credentials. A hardcoded credential exist in /etc/tomcat8/tomcat-user.xml, which allows attackers to gain authorized access and control the tomcat completely on port 8000 in the tomcat manger page.

Frequently asked questions

What is CVE-2021-45877?: Multiple versions of GARO Wallbox GLB/GTB/GTC are affected by hard coded credentials. A hardcoded credential exist in /etc/tomcat8/tomcat-user.xml, which allows attackers to gain authorized access and control the tomcat completely on port 8000 in the tomcat manger page.
How severe is CVE-2021-45877?: CVE-2021-45877 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-45877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45877?: CVE-2021-45877 primarily affects Garo Wallbox Gtb Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-45877?: 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-2021-45877 published?: CVE-2021-45877 was published on 2022-03-21 and last updated on 2026-06-17.

References

https://github.com/delikely/advisory/tree/main/GARO

Affected products (3)

cpe:2.3:o:garo:wallbox_gtb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:garo:wallbox_gtc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:garo:wallbox_glb_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Garo Wallbox Gtb Firmware

CVE-2021-45876 — Critical (CVSS 9.8): Multiple versions of GARO Wallbox GLB/GTB/GTC are affected by unauthenticated command injection. The url parameter of…
CVE-2021-45878 — Critical (CVSS 9.1): Multiple versions of GARO Wallbox GLB/GTB/GTC are affected by incorrect access control. Lack of access control on the…
CVE-2023-30399 — High (CVSS 8.1): Insecure permissions in the settings page of GARO Wallbox GLB/GTB/GTC before v189 allows attackers to redirect users to…

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