Is CVE-2015-8668 being actively exploited?

CVE-2015-8668 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2015-8668?

CVE-2015-8668 has a CVSS 3.1 base score of 9.8 (CRITICAL).

CVE-2015-8668

CRITICAL · CVSS 9.8EPSS 13.7%EU EUVD

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.

Key facts

CVSS score: 9.8 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
EPSS score: 13.7% (96th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2015-8545)
Published: January 8, 2016
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2015-8545 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

libtiff / libtiff
oracle / linux
oracle / linux
oracle / vm server
oracle / vm server
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux desktop
redhat / enterprise linux desktop
redhat / enterprise linux workstation
redhat / enterprise linux workstation

Certified products that may be affected

25 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Oracle Linux 7 NSS Cryptographic Module - Oracle Corporation - FIPS 140 4586 - historical
Oracle Linux 7 Libreswan Cryptographic Module - Oracle Corporation - FIPS 140 4266 - historical
Oracle Linux 7 OpenSSH Client Cryptographic Module - Oracle Corporation - FIPS 140 4206 - historical
Oracle Linux 7 OpenSSH Server Cryptographic Module - Oracle Corporation - FIPS 140 4176 - historical
Oracle Linux 7 Unbreakable Enterprise Kernel (UEK 6) Cryptographic Module - Oracle Corporation - FIPS 140 4169 - historical

See all 25 in the Security Certifications Explorer.

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)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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