CVE-2006-2026

CVE-2006-2026 is a medium-severity vulnerability in Libtiff with a CVSS 2.0 base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.5)
• EPSS exploit prediction: 10% (95th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Libtiff
• Published: 2006-04-25
• Last modified: 2026-06-16

Description

Double free vulnerability in tif_jpeg.c in libtiff before 3.8.1 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted TIFF image that triggers errors related to "setfield/getfield methods in cleanup functions."

Frequently asked questions

What is CVE-2006-2026?

Double free vulnerability in tif_jpeg.c in libtiff before 3.8.1 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted TIFF image that triggers errors related to "setfield/getfield methods in cleanup functions."

How severe is CVE-2006-2026?

CVE-2006-2026 has a CVSS 2.0 base score of 6.5, rated medium severity.

Is CVE-2006-2026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-2026?

CVE-2006-2026 primarily affects Libtiff. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-2026?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-2026 published?

CVE-2006-2026 was published on 2006-04-25 and last updated on 2026-06-16.

References

• ftp://patches.sgi.com/support/free/security/advisories/20060501-01-U.asc
• http://bugzilla.remotesensing.org/show_bug.cgi?id=1102
• http://secunia.com/advisories/19838
• http://secunia.com/advisories/19897
• http://secunia.com/advisories/19936
• http://secunia.com/advisories/19949
• http://secunia.com/advisories/19964
• http://secunia.com/advisories/20021
• http://secunia.com/advisories/20023
• http://secunia.com/advisories/20210
• http://secunia.com/advisories/20345
• http://secunia.com/advisories/20667
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-103099-1
• http://sunsolve.sun.com/search/document.do?assetkey=1-66-201332-1
• http://support.avaya.com/elmodocs2/security/ASA-2006-119.htm
• http://www.debian.org/security/2006/dsa-1054
• http://www.gentoo.org/security/en/glsa/glsa-200605-17.xml
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:082
• http://www.novell.com/linux/security/advisories/2006_04_28.html
• http://www.redhat.com/support/errata/RHSA-2006-0425.html
• http://www.securityfocus.com/bid/17733
• http://www.trustix.org/errata/2006/0024
• http://www.vupen.com/english/advisories/2006/1563
• https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=189933
• https://exchange.xforce.ibmcloud.com/vulnerabilities/26135
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11389
• https://usn.ubuntu.com/277-1/

Affected products (13)

• cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.4:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.5.5:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.5.6:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.5.7:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:libtiff:libtiff:3.7.1:*:*:*:*:*:*:*

More vulnerabilities in Libtiff

• CVE-2004-0929 — Critical (CVSS 10.0): Heap-based buffer overflow in the OJPEGVSetField function in tif_ojpeg.c for libtiff 3.6.1 and earlier, when compiled…
• CVE-2004-1308 — Critical (CVSS 10.0): Integer overflow in (1) tif_dirread.c and (2) tif_fax3.c for libtiff 3.5.7 and 3.7.0 allows remote attackers to execute…
• CVE-2016-9540 — Critical (CVSS 9.8): tools/tiffcp.c in libtiff 4.0.6 has an out-of-bounds write on tiled images with odd tile width versus image width.…
• CVE-2016-9539 — Critical (CVSS 9.8): tools/tiffcrop.c in libtiff 4.0.6 has an out-of-bounds read in readContigTilesIntoBuffer(). Reported as MSVR 35092.
• CVE-2016-9538 — Critical (CVSS 9.8): tools/tiffcrop.c in libtiff 4.0.6 reads an undefined buffer in readContigStripsIntoBuffer() because of a uint16 integer…
• CVE-2016-9537 — Critical (CVSS 9.8): tools/tiffcrop.c in libtiff 4.0.6 has out-of-bounds write vulnerabilities in buffers. Reported as MSVR 35093, MSVR…

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