CVE-2016-4543
The exif_process_IFD_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 IFD sizes, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
The exif_process_IFD_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 IFD sizes, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted header data.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 11.86% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- hp/system management homepage · php/php · fedoraproject/fedora · opensuse/leap
- Source
- security@debian.org
EPSS moved from 9.9% on 21 September 2026 to 11.9% on 4 November 2026, peaking at 12.2% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.htmlMailing List
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.htmlMailing List, Third Party Advisory
- http://php.net/ChangeLog-5.phpPatch, Release Notes
- http://php.net/ChangeLog-7.phpPatch
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://www.debian.org/security/2016/dsa-3602
- http://www.openwall.com/lists/oss-security/2016/05/05/21Mailing List
- http://www.securityfocus.com/bid/89844
- https://bugs.php.net/bug.php?id=72094Exploit
- 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://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
- https://security.gentoo.org/glsa/201611-22
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.htmlMailing List
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.htmlMailing List, Third Party Advisory
- http://php.net/ChangeLog-5.phpPatch, Release Notes
- http://php.net/ChangeLog-7.phpPatch
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://www.debian.org/security/2016/dsa-3602
- http://www.openwall.com/lists/oss-security/2016/05/05/21Mailing List
- http://www.securityfocus.com/bid/89844
- https://bugs.php.net/bug.php?id=72094Exploit
- 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://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
- https://security.gentoo.org/glsa/201611-22
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.