How severe is CVE-2025-5892?

CVE-2025-5892 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-5892 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-5892?

CVE-2025-5892 affects Rocket.chat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-5892?

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

Does CVE-2025-5892 have an EU (EUVD) identifier?

Yes. CVE-2025-5892 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17566.

When was CVE-2025-5892 published?

CVE-2025-5892 was published on 2025-06-09 and last updated on 2026-06-17.

CVE-2025-5892

CVE-2025-5892 is a medium-severity vulnerability in Rocket.chat with a CVSS 3.x base score of 4.3. 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-1333.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
CVSS v4: 2.1
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17566
Weakness: CWE-1333
Affected product: Rocket.chat
Published: 2025-06-09
Last modified: 2026-06-17

Description

A vulnerability, which was classified as problematic, has been found in RocketChat up to 7.6.1. This issue affects the function parseMessage of the file /apps/meteor/app/irc/server/servers/RFC2813/parseMessage.js. The manipulation of the argument line leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-5892?: A vulnerability, which was classified as problematic, has been found in RocketChat up to 7.6.1. This issue affects the function parseMessage of the file /apps/meteor/app/irc/server/servers/RFC2813/parseMessage.js. The manipulation of the argument line leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-5892?: CVE-2025-5892 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-5892 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-5892?: CVE-2025-5892 affects Rocket.chat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-5892?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-5892 have an EU (EUVD) identifier?: Yes. CVE-2025-5892 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17566.
When was CVE-2025-5892 published?: CVE-2025-5892 was published on 2025-06-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*

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