CVE-2025-2688: A vulnerability classified as problematic was found in TOTOLINK A3000RU up to 5.9c.5185

Q: How do I fix CVE-2025-2688?

a3000ru firmware: upgrade to newer than 5.9c.5185. Exact commands for each OS are on this page.

Q: Is CVE-2025-2688 being exploited?

CVE-2025-2688 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-2688 affect?

CVE-2025-2688 affects a3000ru firmware. Severity is medium (CVSS 4.3). A vulnerability classified as problematic was found in TOTOLINK A3000RU up to 5.9c.5185. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/ExportSyslog.sh of the component Syslog Configuration File Handler. The

Q: How urgent is CVE-2025-2688?

Priority 32/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2025-2688 is a medium-severity flaw (CVSS 4.3) affecting a3000ru firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as problematic was found in TOTOLINK A3000RU up to 5.9c.5185. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/ExportSyslog.sh of the component Syslog Configuration File Handler. The manipulation leads to improper access controls. The attack needs to be done within the local network. The exploit has been disclosed to the public and may be used.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-266, CWE-284
Published	2025-03-24
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: totolink

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

Am I affected?

Timeline

2025-03-24 07:15 UTCPublished CVE record published
2026-06-17 09:07 UTCUpdated Record last modified

totolink a3000ru firmware UPGRADE

Affected: <= 5.9c.5185

Fixed in: newer than 5.9c.5185

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2025-2688?

a3000ru firmware: upgrade to newer than 5.9c.5185. Exact commands for each OS are on this page.

Is CVE-2025-2688 being exploited?

CVE-2025-2688 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-2025-2688 affect?

CVE-2025-2688 affects a3000ru firmware. Severity is medium (CVSS 4.3). A vulnerability classified as problematic was found in TOTOLINK A3000RU up to 5.9c.5185. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/ExportSyslog.sh of the component Syslog Configuration File Handler. The

How urgent is CVE-2025-2688?

Priority 32/100. Public exploit reference

Related CVEs

CVE-2025-4496 HIGH 8.8 MITIGATE MITIGATE A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210
CVE-2025-2955 MEDIUM 5.3 UPGRADE A vulnerability has been found in TOTOLINK A3000RU up to 5.9c.5185 and classified as problematic
CVE-2025-28036 CRITICAL 9.8 MITIGATE MITIGATE TOTOLINK A950RG V4.1.2cu.5161_B20200903 was found to contain a pre-auth remote command execution vulnerability
CVE-2025-28035 CRITICAL 9.8 MITIGATE MITIGATE TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability
CVE-2025-28034 CRITICAL 9.8 MITIGATE MITIGATE TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V

References

← Back to latest CVEs