Is CVE-2017-13726 in the CISA KEV catalog?

No. CVE-2017-13726 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-13726?

CVE-2017-13726 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2017-13726?

CVE-2017-13726 has an EPSS score of 2.63% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-13726?

Upgrade tiff on debian 11 to 4.0.8-5 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2017-13726

MEDIUMEPSS 84th pctl

6.5

CVSS v3

NVD

Description

There is a reachable assertion abort in the function TIFFWriteDirectorySec() in LibTIFF 4.0.8, related to tif_dirwrite.c and a SubIFD tag. A crafted input will lead to a remote denial of service attack.

CWE-617

How to fix

Remediation Available

tiffDebian

Fixed in:4.0.8-5CVE-2017-13726

libtiff-toolsUbuntu

Fixed in:4.0.3-7ubuntu0.8USN-3602-1

Fixed in:4.0.6-1ubuntu0.3USN-3602-1

libtiff5Ubuntu

Fixed in:4.0.3-7ubuntu0.8USN-3602-1

Fixed in:4.0.6-1ubuntu0.3USN-3602-1

tiffUbuntu

Fixed in:4.0.3-7ubuntu0.8USN-3602-1

Fixed in:4.0.6-1ubuntu0.3USN-3602-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

2.63%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Third-Party Advisory1

bugzilla.maptools.org

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.