How severe is CVE-2021-4241?

CVE-2021-4241 has a CVSS 3.x base score of 2.6, rated low severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-4241 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4241?

CVE-2021-4241 affects Phpservermonitor Php Server Monitor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4241?

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

When was CVE-2021-4241 published?

CVE-2021-4241 was published on 2022-11-15 and last updated on 2026-06-17.

CVE-2021-4241

CVE-2021-4241 is a low-severity vulnerability in Phpservermonitor Php Server Monitor with a CVSS 3.x base score of 2.6. 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-330.

Key facts

Severity: Low (CVSS 3.x base score 2.6)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: Phpservermonitor Php Server Monitor
Published: 2022-11-15
Last modified: 2026-06-17

Description

A vulnerability, which was classified as problematic, was found in phpservermon. Affected is the function setUserLoggedIn of the file src/psm/Service/User.php. The manipulation leads to use of predictable algorithm in random number generator. The exploit has been disclosed to the public and may be used. The name of the patch is bb10a5f3c68527c58073258cb12446782d223bc3. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-213744.

Frequently asked questions

What is CVE-2021-4241?: A vulnerability, which was classified as problematic, was found in phpservermon. Affected is the function setUserLoggedIn of the file src/psm/Service/User.php. The manipulation leads to use of predictable algorithm in random number generator. The exploit has been disclosed to the public and may be used. The name of the patch is bb10a5f3c68527c58073258cb12446782d223bc3. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-213744.
How severe is CVE-2021-4241?: CVE-2021-4241 has a CVSS 3.x base score of 2.6, rated low severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-4241 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4241?: CVE-2021-4241 affects Phpservermonitor Php Server Monitor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4241?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4241 published?: CVE-2021-4241 was published on 2022-11-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpservermonitor:php_server_monitor:-:*:*:*:*:*:*:*

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