CVE-2025-55620: A cross-site scripting (XSS) vulnerability in the valuateJavascript() function of Reolink v4.54.0.4.20250526 a

Routine

MEDIUM 6.1DOWNGRADE

CVE-2025-55620 is a medium-severity flaw (CVSS 6.1) affecting reolink. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A cross-site scripting (XSS) vulnerability in the valuateJavascript() function of Reolink v4.54.0.4.20250526 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-08-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: reolink

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-22 17:15 UTCPublished CVE record published
2026-06-17 09:41 UTCUpdated Record last modified

reolink reolink DOWNGRADE

Affected: 4.54.0.4.20250526

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.54.0.4.20250526

1. Check installed version

apt-cache policy reolink || rpm -q reolink || reolink --version

2. No fixed release: DOWNGRADE to a release before 4.54.0.4.20250526 (Debian / Ubuntu)

apt-cache madison reolink sudo apt install reolink=<VERSION_BEFORE_4.54.0.4.20250526> sudo apt-mark hold reolink

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list reolink sudo dnf downgrade reolink-<VERSION_BEFORE_4.54.0.4.20250526> sudo dnf versionlock add reolink

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-55620?

reolink: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-55620 being exploited?

CVE-2025-55620 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-55620 affect?

CVE-2025-55620 affects reolink. Severity is medium (CVSS 6.1). A cross-site scripting (XSS) vulnerability in the valuateJavascript() function of Reolink v4.54.0.4.20250526 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

How urgent is CVE-2025-55620?

Priority 30/100. Public exploit reference

Related CVEs

CVE-2025-56802 MEDIUM 5.1 DOWNGRADE The Reolink desktop application uses a hard-coded and predictable AES encryption key to encrypt user configura
CVE-2025-56801 MEDIUM 5.1 DOWNGRADE The Reolink Desktop Application 8.18.12 contains hardcoded credentials as the Initialization Vector (IV) in it
CVE-2025-56800 MEDIUM 5.1 DOWNGRADE Reolink desktop application 8.18.12 contains a vulnerability in its local authentication mechanism
CVE-2025-56799 MEDIUM 6.5 DOWNGRADE Reolink desktop application 8.18.12 contains a command injection vulnerability in its scheduled cache-clearing
CVE-2025-55625 MEDIUM 6.3 DOWNGRADE An open redirect vulnerability in Reolink v4.54.0.4.20250526 allows attackers to redirect users to a malicious

References

← Back to latest CVEs