CVE-2007-1655: Buffer overflow in the fun_ladd function in funmath.cpp in TinyMUX before 20070126 might allow remote attacker

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HIGH 10.0DOWNGRADE

CVE-2007-1655 is a high-severity flaw (CVSS 10.0) affecting tinymux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the fun_ladd function in funmath.cpp in TinyMUX before 20070126 might allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors related to lists of numbers.

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	6.7% (top 6%)
CISA exploited list	No
Published	2007-03-24
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

2007-03-24 00:19 UTCPublished CVE record published
2026-06-16 22:38 UTCUpdated Record last modified

tinymux tinymux DOWNGRADE

Affected: 2.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.4 (Debian / Ubuntu)

apt-cache madison tinymux sudo apt install tinymux=<VERSION_BEFORE_2.4> sudo apt-mark hold tinymux

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

dnf --showduplicates list tinymux sudo dnf downgrade tinymux-<VERSION_BEFORE_2.4> sudo dnf versionlock add tinymux

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-2007-1655?

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

Is CVE-2007-1655 being exploited?

CVE-2007-1655 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-2007-1655 affect?

CVE-2007-1655 affects tinymux. Severity is high (CVSS 10.0). Buffer overflow in the fun_ladd function in funmath.cpp in TinyMUX before 20070126 might allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors related to lists of numbers.

How urgent is CVE-2007-1655?

Priority 58/100. Critical severity; EPSS top 6%: very likely to be exploited

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-2007-1958 MEDIUM 5.0 UPGRADE Buffer overflow in TinyMUX before 2.4 allows attackers to cause a denial of service via unspecified vectors re

References

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