CVE-2023-25437: An issue was discovered in vTech VCS754 version 1.1.1.A before 1.1.1.H, allows attackers to gain escalated pri

Q: How do I fix CVE-2023-25437?

vcs754a firmware: upgrade to 1.1.1.h. Exact commands for each OS are on this page.

Q: Is CVE-2023-25437 being exploited?

CVE-2023-25437 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-2023-25437 affect?

CVE-2023-25437 affects vcs754a firmware. Severity is high (CVSS 8.8). An issue was discovered in vTech VCS754 version 1.1.1.A before 1.1.1.H, allows attackers to gain escalated privileges and gain sensitive information due to cleartext passwords passed in the raw HTML.

Q: How urgent is CVE-2023-25437?

Priority 60/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference

This week

HIGH 8.8UPGRADE

CVE-2023-25437 is a high-severity flaw (CVSS 8.8) affecting vcs754a firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in vTech VCS754 version 1.1.1.A before 1.1.1.H, allows attackers to gain escalated privileges and gain sensitive information due to cleartext passwords passed in the raw HTML.

Why this priority

High severity
EPSS top 3%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	14.1% (top 3%)
CISA exploited list	No
Weakness	CWE-319
Published	2023-04-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: vtech

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

Am I affected?

Timeline

2023-04-27 21:15 UTCPublished CVE record published
2026-06-17 05:41 UTCUpdated Record last modified

vtech vcs754a firmware UPGRADE

Affected: >= 1.1.1.a and < 1.1.1.h

Fixed in: 1.1.1.h

Safe to downgrade to: a release before 1.1.1.a

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-2023-25437?

vcs754a firmware: upgrade to 1.1.1.h. Exact commands for each OS are on this page.

Is CVE-2023-25437 being exploited?

CVE-2023-25437 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-2023-25437 affect?

CVE-2023-25437 affects vcs754a firmware. Severity is high (CVSS 8.8). An issue was discovered in vTech VCS754 version 1.1.1.A before 1.1.1.H, allows attackers to gain escalated privileges and gain sensitive information due to cleartext passwords passed in the raw HTML.

How urgent is CVE-2023-25437?

Priority 60/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference

References

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