CVE-2002-1407: TinySSL 1.02 and earlier does not verify the Basic Constraints for an intermediate CA-signed certificate, whic

Q: How do I fix CVE-2002-1407?

tinyssl: upgrade to newer than 1.0.2. Exact commands for each OS are on this page.

Q: Is CVE-2002-1407 being exploited?

CVE-2002-1407 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-2002-1407 affect?

CVE-2002-1407 affects tinyssl. Severity is high (CVSS 7.5). TinySSL 1.02 and earlier does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack.

Q: How urgent is CVE-2002-1407?

Priority 47/100. High severity; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2002-1407 is a high-severity flaw (CVSS 7.5) affecting tinyssl. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

TinySSL 1.02 and earlier does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.1% (top 36%)
CISA exploited list	No
Published	2003-04-11
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: adam megacz

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

Am I affected?

Timeline

2003-04-11 04:00 UTCPublished CVE record published
2026-06-16 21:59 UTCUpdated Record last modified

adam megacz tinyssl UPGRADE

Affected: <= 1.0.2

Fixed in: newer than 1.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.0.2 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tinyssl

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-2002-1407?

tinyssl: upgrade to newer than 1.0.2. Exact commands for each OS are on this page.

Is CVE-2002-1407 being exploited?

CVE-2002-1407 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-2002-1407 affect?

CVE-2002-1407 affects tinyssl. Severity is high (CVSS 7.5). TinySSL 1.02 and earlier does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack.

How urgent is CVE-2002-1407?

Priority 47/100. High severity; Public exploit reference

References

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