Buffer overflow in Ruijie Rg-Nbr2600s

CVE-2025-25527

Buffer overflow vulnerability in Ruijie RG-NBR2600S Gateway 10.3(4b12) due to the lack of length verification, which is related to the configuration of source address NAT rules. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-25527: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-25527?
CVE-2025-25527 is a medium-severity vulnerability in Ruijie Rg-Nbr2600s, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.1/10. Published 2025-02-11.
How severe is CVE-2025-25527?
Medium severity. CVSS v3 base score is 5.1 out of 10.