How severe is CVE-2023-3265?

CVE-2023-3265 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-2023-3265 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3265?

CVE-2023-3265 affects Cyberpower Powerpanel Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3265?

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-2023-3265 published?

CVE-2023-3265 was published on 2023-08-14 and last updated on 2026-06-17.

CVE-2023-3265

CVE-2023-3265 is a critical-severity vulnerability in Cyberpower Powerpanel Server 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-150.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-150
Affected product: Cyberpower Powerpanel Server
Published: 2023-08-14
Last modified: 2026-06-17

Description

An authentication bypass exists on CyberPower PowerPanel Enterprise by failing to sanitize meta-characters from the username, allowing an attacker to login into the application with the default user "cyberpower" by appending a non-printable character.An unauthenticated attacker can leverage this vulnerability to log in to the CypberPower PowerPanel Enterprise as an administrator with hardcoded default credentials.

Frequently asked questions

What is CVE-2023-3265?: An authentication bypass exists on CyberPower PowerPanel Enterprise by failing to sanitize meta-characters from the username, allowing an attacker to login into the application with the default user "cyberpower" by appending a non-printable character.An unauthenticated attacker can leverage this vulnerability to log in to the CypberPower PowerPanel Enterprise as an administrator with hardcoded default credentials.
How severe is CVE-2023-3265?: CVE-2023-3265 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-2023-3265 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3265?: CVE-2023-3265 affects Cyberpower Powerpanel Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3265?: 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-2023-3265 published?: CVE-2023-3265 was published on 2023-08-14 and last updated on 2026-06-17.

References

https://www.trellix.com/en-us/about/newsroom/stories/research/the-threat-lurking-in-data-centers.html

Affected products (1)

cpe:2.3:a:cyberpower:powerpanel_server:*:*:*:*:enterprise:*:*:*

More vulnerabilities in Cyberpower Powerpanel Server

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CVE-2023-3261 — High (CVSS 7.5): The Dataprobe iBoot PDU running firmware version 1.43.03312023 or earlier contains a buffer overflow vulnerability in…
CVE-2023-3260 — High (CVSS 7.2): The Dataprobe iBoot PDU running firmware version 1.43.03312023 or earlier is vulnerable to command injection via the…
CVE-2023-3264 — Medium (CVSS 6.7): The Dataprobe iBoot PDU running firmware version 1.43.03312023 or earlier uses hard-coded credentials for all…

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