CVE-2025-26004: Telesquare TLR-2005KSH 1.1.4 is vulnerable to unauthorized stack buffer overflow vulnerability when requesting

This month

CRITICAL 9.8REMOTEMITIGATE

CVE-2025-26004 is a critical-severity flaw (CVSS 9.8) affecting tlr-2005ksh firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Telesquare TLR-2005KSH 1.1.4 is vulnerable to unauthorized stack buffer overflow vulnerability when requesting admin.cgi parameter with setDdns.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-120
Published	2025-03-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: telesquare

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

Am I affected?

Timeline

2025-03-26 19:15 UTCPublished CVE record published
2026-06-17 09:01 UTCUpdated Record last modified

telesquare tlr-2005ksh firmware MITIGATE

Affected: 1.1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.4

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-2025-26004?

tlr-2005ksh firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-26004 being exploited?

CVE-2025-26004 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-2025-26004 affect?

CVE-2025-26004 affects tlr-2005ksh firmware. Severity is critical (CVSS 9.8). Telesquare TLR-2005KSH 1.1.4 is vulnerable to unauthorized stack buffer overflow vulnerability when requesting admin.cgi parameter with setDdns.

How urgent is CVE-2025-26004?

Priority 49/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-9603 MEDIUM 6.3 MITIGATE A vulnerability was determined in Telesquare TLR-2005KSH 1.2.4
CVE-2025-28361 HIGH 7.5 MITIGATE Unauthorized stack overflow vulnerability in Telesquare TLR-2005KSH v.1.1.4 allows a remote attacker to obtain
CVE-2025-26011 CRITICAL 9.8 MITIGATE Telesquare TLR-2005KSH 1.1.4 has an unauthorized stack overflow vulnerability when requesting the admin.cgi pa
CVE-2025-26010 CRITICAL 9.8 MITIGATE Telesquare TLR-2005KSH 1.1.4 allows unauthorized password modification when requesting the admin.cgi parameter
CVE-2025-26009 HIGH 7.5 MITIGATE Telesquare TLR-2005KSH 1.1.4 has an Information Disclosure vulnerability when requesting systemutilit.cgi.

References

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