CVE-2007-1457: Buffer overflow in the urarlib_get function in Christian Scheurer UniquE RAR File Library (unrarlib, aka URARF

This month

HIGH 10.0DOWNGRADEDOWNGRADE

CVE-2007-1457 is a high-severity flaw (CVSS 10.0) affecting unrarlib, urarfilelib. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the urarlib_get function in Christian Scheurer UniquE RAR File Library (unrarlib, aka URARFileLib) 0.4 allows context-dependent attackers to execute arbitrary code via a long (1) filename, (2) rarfile, or (3) libpassword argument.

Why this priority

Critical severity

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	3.4% (top 11%)
CISA exploited list	No
Published	2007-03-14
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: christian scheurer

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

Am I affected?

Timeline

2007-03-14 18:19 UTCPublished CVE record published
2026-06-16 22:37 UTCUpdated Record last modified

christian scheurer unrarlib DOWNGRADE

Affected: 0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.4 (Debian / Ubuntu)

apt-cache madison unrarlib sudo apt install unrarlib=<VERSION_BEFORE_0.4> sudo apt-mark hold unrarlib

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

dnf --showduplicates list unrarlib sudo dnf downgrade unrarlib-<VERSION_BEFORE_0.4> sudo dnf versionlock add unrarlib

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.

christian scheurer urarfilelib DOWNGRADE

Affected: 0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.4 (Debian / Ubuntu)

apt-cache madison urarfilelib sudo apt install urarfilelib=<VERSION_BEFORE_0.4> sudo apt-mark hold urarfilelib

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

dnf --showduplicates list urarfilelib sudo dnf downgrade urarfilelib-<VERSION_BEFORE_0.4> sudo dnf versionlock add urarfilelib

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-2007-1457?

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

Is CVE-2007-1457 being exploited?

CVE-2007-1457 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-2007-1457 affect?

CVE-2007-1457 affects unrarlib, urarfilelib. Severity is high (CVSS 10.0). Buffer overflow in the urarlib_get function in Christian Scheurer UniquE RAR File Library (unrarlib, aka URARFileLib) 0.4 allows context-dependent attackers to execute arbitrary code via a long (1) filename, (2) rarfile, or (3) libpassword

How urgent is CVE-2007-1457?

Priority 57/100. Critical severity

References

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