CVE-2007-1958: Buffer overflow in TinyMUX before 2.4 allows attackers to cause a denial of service via unspecified vectors re

Q: How do I fix CVE-2007-1958?

tinymux: upgrade to newer than 2.3. Exact commands for each OS are on this page.

Q: Is CVE-2007-1958 being exploited?

CVE-2007-1958 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-2007-1958 affect?

CVE-2007-1958 affects tinymux. Severity is medium (CVSS 5.0). Buffer overflow in TinyMUX before 2.4 allows attackers to cause a denial of service via unspecified vectors related to "too many substring matches in a regexp $-command." NOTE: some of these details are obtained from third party information

Q: How urgent is CVE-2007-1958?

Priority 33/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2007-1958 is a medium-severity flaw (CVSS 5.0) affecting tinymux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in TinyMUX before 2.4 allows attackers to cause a denial of service via unspecified vectors related to "too many substring matches in a regexp $-command." NOTE: some of these details are obtained from third party information.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Published	2007-04-11
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: tinymux

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2007-04-11 10:19 UTCPublished CVE record published
2026-06-16 22:38 UTCUpdated Record last modified

tinymux tinymux UPGRADE

Affected: <= 2.3

Fixed in: newer than 2.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade tinymux

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tinymux

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2007-1958?

tinymux: upgrade to newer than 2.3. Exact commands for each OS are on this page.

Is CVE-2007-1958 being exploited?

CVE-2007-1958 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-2007-1958 affect?

CVE-2007-1958 affects tinymux. Severity is medium (CVSS 5.0). Buffer overflow in TinyMUX before 2.4 allows attackers to cause a denial of service via unspecified vectors related to "too many substring matches in a regexp $-command." NOTE: some of these details are obtained from third party information

How urgent is CVE-2007-1958?

Priority 33/100. No elevated risk signals yet.

Related CVEs

CVE-2007-1959 HIGH 10.0 UPGRADE Unspecified vulnerability in the process_cmdent function in command.cpp in TinyMUX before 2.4 has unknown impa
CVE-2007-1655 HIGH 10.0 DOWNGRADE Buffer overflow in the fun_ladd function in funmath.cpp in TinyMUX before 20070126 might allow remote attacker

References

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