CVE-2016-4544

Name: CVE-2016-4544
Creator: NVD / NIST
Published: 2016-05-22T01:59:29.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 6.69%

Last modified Jun 17, 2026

CVE-2016-4544 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The exif_process_TIFF_in_JPEG function in ext/exif/exif.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 does not validate TIFF start data, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted header data.. EPSS estimates a 6.69% chance of exploitation in the next 30 days.

Description

The exif_process_TIFF_in_JPEG function in ext/exif/exif.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 does not validate TIFF start data, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted header data.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

6.69%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Php	Php	>= 5.5.0, < 5.5.35
Php	Php	>= 5.6.0, < 5.6.21
Php	Php	>= 7.0.0, < 7.0.6
Opensuse	Leap	42.1
Opensuse	Opensuse	13.2
Fedoraproject	Fedora	24
Debian	Debian Linux	8.0

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.htmlMailing List, Third Party Advisory
http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3602Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/05/21Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/89844Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=72094Exploit, Issue Tracking, Vendor Advisory
https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=082aecfc3a753ad03be82cf14f03ac065723ec92
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731Third Party Advisory
https://security.gentoo.org/glsa/201611-22Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.htmlMailing List, Third Party Advisory
http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3602Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/05/21Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/89844Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=72094Exploit, Issue Tracking, Vendor Advisory
https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=082aecfc3a753ad03be82cf14f03ac065723ec92
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731Third Party Advisory
https://security.gentoo.org/glsa/201611-22Third Party Advisory

Timeline

Published: May 22, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4544?

How severe is CVE-2016-4544?

CVE-2016-4544 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.69% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4544?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-4544?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST