CVE-2004-0397: Stack-based buffer overflow during the apr_time_t data conversion in Subversion 1.0.2 and earlier allows remot

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HIGH 7.5DOWNGRADE

CVE-2004-0397 is a high-severity flaw (CVSS 7.5) affecting subversion. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow during the apr_time_t data conversion in Subversion 1.0.2 and earlier allows remote attackers to execute arbitrary code via a (1) DAV2 REPORT query or (2) get-dated-rev svn-protocol command.

Why this priority

High severity
EPSS top 1%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	75.2% (top 1%)
CISA exploited list	No
Published	2004-07-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: subversion

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

Am I affected?

Timeline

2004-07-07 04:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

subversion subversion DOWNGRADE

Affected: 1.0 · 1.0.1 · 1.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison subversion sudo apt install subversion=<VERSION_BEFORE_1.0> sudo apt-mark hold subversion

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

dnf --showduplicates list subversion sudo dnf downgrade subversion-<VERSION_BEFORE_1.0> sudo dnf versionlock add subversion

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Subversion 1.0.2 - 'svn_time_from_cstring()' Remote Overflow
Exploit-DB: Subversion 1.0.2 - Date Overflow (Metasploit)
Exploit-DB: Subversion - Date Svnserve (Metasploit)
Metasploit: Subversion Date Svnserve

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-2004-0397?

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

Is CVE-2004-0397 being exploited?

CVE-2004-0397 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-2004-0397 affect?

CVE-2004-0397 affects subversion. Severity is high (CVSS 7.5). Stack-based buffer overflow during the apr_time_t data conversion in Subversion 1.0.2 and earlier allows remote attackers to execute arbitrary code via a (1) DAV2 REPORT query or (2) get-dated-rev svn-protocol command.

How urgent is CVE-2004-0397?

Priority 56/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference

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References

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