What is CVE-2025-55621?

CVE-2025-55621 is a medium-severity vulnerability in Reolink, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2025-08-22.

How severe is CVE-2025-55621?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2025-55621 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Reolink

CVE-2025-55621

An Insecure Direct Object Reference (IDOR) vulnerability in Reolink v4.54.0.4.20250526 allows unauthorized attackers to access and download other users' profile photos via a crafted URL. NOTE: this is disputed by the Supplier because it is intentional behavior; the photos are part of a social platform on which users expect to find one another.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (15.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Reolink — versions 4.54.0.4.20250526
N/a — versions n/a

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-55621?: CVE-2025-55621 is a medium-severity vulnerability in Reolink, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2025-08-22.
How severe is CVE-2025-55621?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-55621 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.