CVE-2002-0847: tinyproxy HTTP proxy 1.5.0, 1.4.3, and earlier allows remote attackers to execute arbitrary code via memory th

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HIGH 7.5DOWNGRADE

CVE-2002-0847 is a high-severity flaw (CVSS 7.5) affecting tinyproxy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

tinyproxy HTTP proxy 1.5.0, 1.4.3, and earlier allows remote attackers to execute arbitrary code via memory that is freed twice (double-free).

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.8% (top 13%)
CISA exploited list	No
Published	2002-08-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: tinyproxy

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

Am I affected?

Timeline

2002-08-12 04:00 UTCPublished CVE record published
2026-06-16 21:58 UTCUpdated Record last modified

tinyproxy tinyproxy DOWNGRADE

Affected: 1.3.2 · 1.3.3 · 1.4.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.3.2 (Debian / Ubuntu)

apt-cache madison tinyproxy sudo apt install tinyproxy=<VERSION_BEFORE_1.3.2> sudo apt-mark hold tinyproxy

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

dnf --showduplicates list tinyproxy sudo dnf downgrade tinyproxy-<VERSION_BEFORE_1.3.2> sudo dnf versionlock add tinyproxy

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-2002-0847?

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

Is CVE-2002-0847 being exploited?

CVE-2002-0847 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-2002-0847 affect?

CVE-2002-0847 affects tinyproxy. Severity is high (CVSS 7.5). tinyproxy HTTP proxy 1.5.0, 1.4.3, and earlier allows remote attackers to execute arbitrary code via memory that is freed twice (double-free).

How urgent is CVE-2002-0847?

Priority 48/100. High severity

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References

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