CVE-2013-3944: Stack-based buffer overflow in the MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers

Q: How do I fix CVE-2013-3944?

mrsid: upgrade to 4.37. Exact commands for each OS are on this page.

Q: Is CVE-2013-3944 being exploited?

CVE-2013-3944 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-2013-3944 affect?

CVE-2013-3944 affects mrsid. Severity is high (CVSS 7.8). Stack-based buffer overflow in the MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers to execute arbitrary code via an IMAGE tag.

Q: How urgent is CVE-2013-3944?

Priority 52/100. High severity; EPSS top 2%: very likely to be exploited

This week

HIGH 7.8UPGRADE

CVE-2013-3944 is a high-severity flaw (CVSS 7.8) affecting mrsid. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in the MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers to execute arbitrary code via an IMAGE tag.

Why this priority

High severity
EPSS top 2%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	27.5% (top 2%)
CISA exploited list	No
Weakness	CWE-787
Published	2020-01-02
Last modified	2026-06-16

Publisher (CNA): Flexera Software LLC · Vendor: extensis

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

Am I affected?

Timeline

2020-01-02 19:15 UTCPublished CVE record published
2026-06-16 23:56 UTCUpdated Record last modified

extensis mrsid UPGRADE

Affected: < 4.37

Fixed in: 4.37

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 4.37 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mrsid

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-2013-3944?

mrsid: upgrade to 4.37. Exact commands for each OS are on this page.

Is CVE-2013-3944 being exploited?

CVE-2013-3944 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-2013-3944 affect?

CVE-2013-3944 affects mrsid. Severity is high (CVSS 7.8). Stack-based buffer overflow in the MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers to execute arbitrary code via an IMAGE tag.

How urgent is CVE-2013-3944?

Priority 52/100. High severity; EPSS top 2%: very likely to be exploited

Related CVEs

CVE-2013-3946 HIGH 7.8 UPGRADE Heap-based buffer overflow in the MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers t
CVE-2013-3945 HIGH 7.8 UPGRADE The MrSID plugin (MrSID.dll) before 4.37 for IrfanView allows remote attackers to execute arbitrary code via a

References

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