Which products and versions are affected by CVE-2021-30461?

Affected: Voipmonitor. The full list is in the CVE brief.

Is CVE-2021-30461 being exploited in the wild?

It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since May 29, 2021.

Is CVE-2021-30461 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-30461?

No public exploit code is known.

Is there a fix for CVE-2021-30461?

Fixed versions are available, including Voipmonitor 24.61.

How urgently should CVE-2021-30461 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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On CISA KEVCritical

CVE-2021-30461Voipmonitor Code Injection

A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61.

Published May 29, 2021 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2021-30461 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Voipmonitor.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since May 29, 2021. No public exploit code is known.
EPSS estimates a 37% probability of exploitation in the next 30 days.
Fixed versions are available, including Voipmonitor 24.61.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

37%

Higher than 98.4% of all scored CVEs

Exploit maturity

Exploited (KEV)

ATLAS score

51/100

Publication score, see How it works

Exploitation Verdict

KEV listed

May 29, 2021

0 days after publication

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Exploited (KEV)

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Description

A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CIRCL KEV	May 29, 2021	n/a	Not reported
Industry KEV feed	May 29, 2021	n/a	Not reported

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
VoipmonitorVoipmonitor	See advisory	24.61

Patched Releases

Voipmonitor

24.61

Timeline

Publicly disclosed
May 29, 2021
Added to CIRCL KEV
May 29, 2021
Added to Industry KEV feed
May 29, 2021
Last updated
Nov 21, 2024

Weakness Type

CWE-94 Improper Control of Generation of Code ('Code Injection')

References

6 more references in the full CVE brief

FAQ

Common Questions.

A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61.
Affected: Voipmonitor. The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since May 29, 2021.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Voipmonitor 24.61.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2021-30461 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.