CVE-2015-4696: Use-after-free vulnerability in libwmf 0.2.8.4 allows remote attackers to cause a denial of service (crash) vi

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MEDIUM 4.3DOWNGRADE

CVE-2015-4696 is a medium-severity flaw (CVSS 4.3) affecting libwmf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Use-after-free vulnerability in libwmf 0.2.8.4 allows remote attackers to cause a denial of service (crash) via a crafted WMF file to the (1) wmf2gd or (2) wmf2eps command.

Why this priority

EPSS top 7%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	5.9% (top 7%)
CISA exploited list	No
Published	2015-07-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: wvware

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-07-01 14:59 UTCPublished CVE record published
2026-06-17 00:27 UTCUpdated Record last modified

wvware libwmf DOWNGRADE

Affected: 0.2.8.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.2.8.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.2.8.4 (Debian / Ubuntu)

apt-cache madison libwmf sudo apt install libwmf=<VERSION_BEFORE_0.2.8.4> sudo apt-mark hold libwmf

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

dnf --showduplicates list libwmf sudo dnf downgrade libwmf-<VERSION_BEFORE_0.2.8.4> sudo dnf versionlock add libwmf

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-2015-4696?

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

Is CVE-2015-4696 being exploited?

CVE-2015-4696 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-2015-4696 affect?

CVE-2015-4696 affects libwmf. Severity is medium (CVSS 4.3). Use-after-free vulnerability in libwmf 0.2.8.4 allows remote attackers to cause a denial of service (crash) via a crafted WMF file to the (1) wmf2gd or (2) wmf2eps command.

How urgent is CVE-2015-4696?

Priority 43/100. EPSS top 7%: very likely to be exploited; Public exploit reference

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References

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