Critical 9.8Published Jan 8, 2016

CVE-2015-8668Heap-based buffer overflow in the PackBitsPreEncode function in tif_packbits.c in bmp2tiff in libtiff 4.0.6 and earlier allows remote attackers to execute arbitrary code or cause a denial of service…

Updated under an hour ago (Nov 2, 2026, 12:10 AM ET)

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It affects libtiff and 5 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Heap-based buffer overflow in the PackBitsPreEncode function in tif_packbits.c in bmp2tiff in libtiff 4.0.6 and earlier allows remote attackers to execute arbitrary code or cause a denial of service via a large width field in a BMP image.

CVSS: 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

libtiff libtiff libtiff:libtiff	through 4.0.6	NVD
oracle vm_server oracle:vm_server	3.3; 3.4	NVD
oracle linux oracle:linux	6; 7	NVD
redhat enterprise_linux redhat:enterprise_linux	6.0; 7.0	NVD
redhat enterprise_linux_desktop redhat:enterprise_linux_desktop	6.0; 7.0	NVD
redhat enterprise_linux_workstation redhat:enterprise_linux_workstation	6.0; 7.0	NVD

References

References

http://packetstormsecurity.com/files/135080/libtiff-4.0.6-Heap-Overflow.html	exploit, third-party-advisory, vdb-entry
http://rhn.redhat.com/errata/RHSA-2016-1546.html	third-party-advisory
http://rhn.redhat.com/errata/RHSA-2016-1547.html	third-party-advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html	third-party-advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html	third-party-advisory
http://www.securityfocus.com/archive/1/537208/100/0/threaded	broken-link, vdb-entry
https://security.gentoo.org/glsa/201701-16	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.