How severe is CVE-2026-22877?

CVE-2026-22877 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-22877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22877?

CVE-2026-22877 primarily affects Copeland Xweb 300d Pro 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-2026-22877?

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

Does CVE-2026-22877 have an EU (EUVD) identifier?

Yes. CVE-2026-22877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8973.

When was CVE-2026-22877 published?

CVE-2026-22877 was published on 2026-02-27 and last updated on 2026-06-17.

CVE-2026-22877

CVE-2026-22877 is a low-severity vulnerability in Copeland Xweb 300d Pro Firmware with a CVSS 3.x base score of 3.7. 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: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8973
Weakness: CWE-22
Affected product: Copeland Xweb 300d Pro Firmware
Published: 2026-02-27
Last modified: 2026-06-17

Description

An arbitrary file-read vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling unauthenticated attackers to read arbitrary files on the system, and potentially causing a denial-of-service attack.

Frequently asked questions

What is CVE-2026-22877?: An arbitrary file-read vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling unauthenticated attackers to read arbitrary files on the system, and potentially causing a denial-of-service attack.
How severe is CVE-2026-22877?: CVE-2026-22877 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-22877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22877?: CVE-2026-22877 primarily affects Copeland Xweb 300d Pro 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-2026-22877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-22877 have an EU (EUVD) identifier?: Yes. CVE-2026-22877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8973.
When was CVE-2026-22877 published?: CVE-2026-22877 was published on 2026-02-27 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:copeland:xweb_300d_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:copeland:xweb_500d_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:copeland:xweb_500b_pro_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Copeland Xweb 300d Pro Firmware

CVE-2026-21718 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, enabling any attackers to…
CVE-2026-24663 — Critical (CVSS 9.0): An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an unauthenticated…
CVE-2026-25085 — High (CVSS 8.6): A vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, in which an unexpected return value from the…
CVE-2026-3037 — High (CVSS 8.0): An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker…
CVE-2026-25721 — High (CVSS 8.0): An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker…
CVE-2026-25196 — High (CVSS 8.0): An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker…

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